Vulnerability-Lookup

RHSA-2022:2120

Vulnerability from csaf_redhat - Published: 2022-05-10 13:59 - Updated: 2025-11-21 18:30

Summary

Red Hat Security Advisory: zsh security update

Severity

Moderate

Notes

Topic: An update for zsh is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Details: The zsh shell is a command interpreter usable as an interactive login shell and as a shell script command processor. Zsh resembles the ksh shell (the Korn shell), but includes many enhancements. Zsh supports command-line editing, built-in spelling correction, programmable command completion, shell functions (with autoloading), a history mechanism, and more. Security Fix(es): * zsh: Prompt expansion vulnerability (CVE-2021-45444) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. Additional Changes: For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.6 Release Notes linked from the References section.

Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.

CVE-2021-45444

A vulnerability was found in zsh in the parsecolorchar() function of prompt.c file. This flaw allows an attacker to perform code execution if they control a command output inside the prompt, as stated by a %F%K argument. This occurs because of recursive PROMPT_SUBST expansion.

7.8 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CWE-77 - Improper Neutralization of Special Elements used in a Command ('Command Injection')

Vendor Fix For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 https://access.redhat.com/errata/RHSA-2022:2120

References

URL

Category

	https://access.redhat.com/errata/RHSA-2022:2120	self
	https://access.redhat.com/security/updates/classi…	external
	https://access.redhat.com/documentation/en-us/red…	external
	https://bugzilla.redhat.com/show_bug.cgi?id=2054089	external
	https://security.access.redhat.com/data/csaf/v2/a…	self
	https://access.redhat.com/security/cve/CVE-2021-45444	self
	https://bugzilla.redhat.com/show_bug.cgi?id=2054089	external
	https://www.cve.org/CVERecord?id=CVE-2021-45444	external
	https://nvd.nist.gov/vuln/detail/CVE-2021-45444	external
	https://www.zsh.org/mla/announce/msg00133.html	external

JSON

To clipboard

{
  "document": {
    "aggregate_severity": {
      "namespace": "https://access.redhat.com/security/updates/classification/",
      "text": "Moderate"
    },
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
      "text": "Copyright \u00a9 Red Hat, Inc. All rights reserved.",
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "en",
    "notes": [
      {
        "category": "summary",
        "text": "An update for zsh is now available for Red Hat Enterprise Linux 8.\n\nRed Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.",
        "title": "Topic"
      },
      {
        "category": "general",
        "text": "The zsh shell is a command interpreter usable as an interactive login shell and as a shell script command processor. Zsh resembles the ksh shell (the Korn shell), but includes many enhancements. Zsh supports command-line editing, built-in spelling correction, programmable command completion, shell functions (with autoloading), a history mechanism, and more.\n\nSecurity Fix(es):\n\n* zsh: Prompt expansion vulnerability (CVE-2021-45444)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n\nAdditional Changes:\n\nFor detailed information on changes in this release, see the Red Hat Enterprise Linux 8.6 Release Notes linked from the References section.",
        "title": "Details"
      },
      {
        "category": "legal_disclaimer",
        "text": "This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.",
        "title": "Terms of Use"
      }
    ],
    "publisher": {
      "category": "vendor",
      "contact_details": "https://access.redhat.com/security/team/contact/",
      "issuing_authority": "Red Hat Product Security is responsible for vulnerability handling across all Red Hat products and services.",
      "name": "Red Hat Product Security",
      "namespace": "https://www.redhat.com"
    },
    "references": [
      {
        "category": "self",
        "summary": "https://access.redhat.com/errata/RHSA-2022:2120",
        "url": "https://access.redhat.com/errata/RHSA-2022:2120"
      },
      {
        "category": "external",
        "summary": "https://access.redhat.com/security/updates/classification/#moderate",
        "url": "https://access.redhat.com/security/updates/classification/#moderate"
      },
      {
        "category": "external",
        "summary": "https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/8.6_release_notes/",
        "url": "https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/8.6_release_notes/"
      },
      {
        "category": "external",
        "summary": "2054089",
        "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2054089"
      },
      {
        "category": "self",
        "summary": "Canonical URL",
        "url": "https://security.access.redhat.com/data/csaf/v2/advisories/2022/rhsa-2022_2120.json"
      }
    ],
    "title": "Red Hat Security Advisory: zsh security update",
    "tracking": {
      "current_release_date": "2025-11-21T18:30:44+00:00",
      "generator": {
        "date": "2025-11-21T18:30:44+00:00",
        "engine": {
          "name": "Red Hat SDEngine",
          "version": "4.6.12"
        }
      },
      "id": "RHSA-2022:2120",
      "initial_release_date": "2022-05-10T13:59:26+00:00",
      "revision_history": [
        {
          "date": "2022-05-10T13:59:26+00:00",
          "number": "1",
          "summary": "Initial version"
        },
        {
          "date": "2022-05-10T13:59:26+00:00",
          "number": "2",
          "summary": "Last updated version"
        },
        {
          "date": "2025-11-21T18:30:44+00:00",
          "number": "3",
          "summary": "Last generated version"
        }
      ],
      "status": "final",
      "version": "3"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_name",
                "name": "Red Hat Enterprise Linux AppStream (v. 8)",
                "product": {
                  "name": "Red Hat Enterprise Linux AppStream (v. 8)",
                  "product_id": "AppStream-8.6.0.GA",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:redhat:enterprise_linux:8::appstream"
                  }
                }
              },
              {
                "category": "product_name",
                "name": "Red Hat Enterprise Linux BaseOS (v. 8)",
                "product": {
                  "name": "Red Hat Enterprise Linux BaseOS (v. 8)",
                  "product_id": "BaseOS-8.6.0.GA",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:redhat:enterprise_linux:8::baseos"
                  }
                }
              }
            ],
            "category": "product_family",
            "name": "Red Hat Enterprise Linux"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "zsh-0:5.5.1-9.el8.src",
                "product": {
                  "name": "zsh-0:5.5.1-9.el8.src",
                  "product_id": "zsh-0:5.5.1-9.el8.src",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/zsh@5.5.1-9.el8?arch=src"
                  }
                }
              }
            ],
            "category": "architecture",
            "name": "src"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "zsh-0:5.5.1-9.el8.aarch64",
                "product": {
                  "name": "zsh-0:5.5.1-9.el8.aarch64",
                  "product_id": "zsh-0:5.5.1-9.el8.aarch64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/zsh@5.5.1-9.el8?arch=aarch64"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "zsh-debugsource-0:5.5.1-9.el8.aarch64",
                "product": {
                  "name": "zsh-debugsource-0:5.5.1-9.el8.aarch64",
                  "product_id": "zsh-debugsource-0:5.5.1-9.el8.aarch64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/zsh-debugsource@5.5.1-9.el8?arch=aarch64"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "zsh-debuginfo-0:5.5.1-9.el8.aarch64",
                "product": {
                  "name": "zsh-debuginfo-0:5.5.1-9.el8.aarch64",
                  "product_id": "zsh-debuginfo-0:5.5.1-9.el8.aarch64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/zsh-debuginfo@5.5.1-9.el8?arch=aarch64"
                  }
                }
              }
            ],
            "category": "architecture",
            "name": "aarch64"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "zsh-0:5.5.1-9.el8.ppc64le",
                "product": {
                  "name": "zsh-0:5.5.1-9.el8.ppc64le",
                  "product_id": "zsh-0:5.5.1-9.el8.ppc64le",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/zsh@5.5.1-9.el8?arch=ppc64le"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "zsh-debugsource-0:5.5.1-9.el8.ppc64le",
                "product": {
                  "name": "zsh-debugsource-0:5.5.1-9.el8.ppc64le",
                  "product_id": "zsh-debugsource-0:5.5.1-9.el8.ppc64le",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/zsh-debugsource@5.5.1-9.el8?arch=ppc64le"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "zsh-debuginfo-0:5.5.1-9.el8.ppc64le",
                "product": {
                  "name": "zsh-debuginfo-0:5.5.1-9.el8.ppc64le",
                  "product_id": "zsh-debuginfo-0:5.5.1-9.el8.ppc64le",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/zsh-debuginfo@5.5.1-9.el8?arch=ppc64le"
                  }
                }
              }
            ],
            "category": "architecture",
            "name": "ppc64le"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "zsh-0:5.5.1-9.el8.x86_64",
                "product": {
                  "name": "zsh-0:5.5.1-9.el8.x86_64",
                  "product_id": "zsh-0:5.5.1-9.el8.x86_64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/zsh@5.5.1-9.el8?arch=x86_64"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "zsh-debugsource-0:5.5.1-9.el8.x86_64",
                "product": {
                  "name": "zsh-debugsource-0:5.5.1-9.el8.x86_64",
                  "product_id": "zsh-debugsource-0:5.5.1-9.el8.x86_64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/zsh-debugsource@5.5.1-9.el8?arch=x86_64"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "zsh-debuginfo-0:5.5.1-9.el8.x86_64",
                "product": {
                  "name": "zsh-debuginfo-0:5.5.1-9.el8.x86_64",
                  "product_id": "zsh-debuginfo-0:5.5.1-9.el8.x86_64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/zsh-debuginfo@5.5.1-9.el8?arch=x86_64"
                  }
                }
              }
            ],
            "category": "architecture",
            "name": "x86_64"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "zsh-0:5.5.1-9.el8.s390x",
                "product": {
                  "name": "zsh-0:5.5.1-9.el8.s390x",
                  "product_id": "zsh-0:5.5.1-9.el8.s390x",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/zsh@5.5.1-9.el8?arch=s390x"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "zsh-debugsource-0:5.5.1-9.el8.s390x",
                "product": {
                  "name": "zsh-debugsource-0:5.5.1-9.el8.s390x",
                  "product_id": "zsh-debugsource-0:5.5.1-9.el8.s390x",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/zsh-debugsource@5.5.1-9.el8?arch=s390x"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "zsh-debuginfo-0:5.5.1-9.el8.s390x",
                "product": {
                  "name": "zsh-debuginfo-0:5.5.1-9.el8.s390x",
                  "product_id": "zsh-debuginfo-0:5.5.1-9.el8.s390x",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/zsh-debuginfo@5.5.1-9.el8?arch=s390x"
                  }
                }
              }
            ],
            "category": "architecture",
            "name": "s390x"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "zsh-html-0:5.5.1-9.el8.noarch",
                "product": {
                  "name": "zsh-html-0:5.5.1-9.el8.noarch",
                  "product_id": "zsh-html-0:5.5.1-9.el8.noarch",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/zsh-html@5.5.1-9.el8?arch=noarch"
                  }
                }
              }
            ],
            "category": "architecture",
            "name": "noarch"
          }
        ],
        "category": "vendor",
        "name": "Red Hat"
      }
    ],
    "relationships": [
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "zsh-0:5.5.1-9.el8.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 8)",
          "product_id": "AppStream-8.6.0.GA:zsh-0:5.5.1-9.el8.aarch64"
        },
        "product_reference": "zsh-0:5.5.1-9.el8.aarch64",
        "relates_to_product_reference": "AppStream-8.6.0.GA"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "zsh-0:5.5.1-9.el8.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 8)",
          "product_id": "AppStream-8.6.0.GA:zsh-0:5.5.1-9.el8.ppc64le"
        },
        "product_reference": "zsh-0:5.5.1-9.el8.ppc64le",
        "relates_to_product_reference": "AppStream-8.6.0.GA"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "zsh-0:5.5.1-9.el8.s390x as a component of Red Hat Enterprise Linux AppStream (v. 8)",
          "product_id": "AppStream-8.6.0.GA:zsh-0:5.5.1-9.el8.s390x"
        },
        "product_reference": "zsh-0:5.5.1-9.el8.s390x",
        "relates_to_product_reference": "AppStream-8.6.0.GA"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "zsh-0:5.5.1-9.el8.src as a component of Red Hat Enterprise Linux AppStream (v. 8)",
          "product_id": "AppStream-8.6.0.GA:zsh-0:5.5.1-9.el8.src"
        },
        "product_reference": "zsh-0:5.5.1-9.el8.src",
        "relates_to_product_reference": "AppStream-8.6.0.GA"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "zsh-0:5.5.1-9.el8.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 8)",
          "product_id": "AppStream-8.6.0.GA:zsh-0:5.5.1-9.el8.x86_64"
        },
        "product_reference": "zsh-0:5.5.1-9.el8.x86_64",
        "relates_to_product_reference": "AppStream-8.6.0.GA"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "zsh-debuginfo-0:5.5.1-9.el8.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 8)",
          "product_id": "AppStream-8.6.0.GA:zsh-debuginfo-0:5.5.1-9.el8.aarch64"
        },
        "product_reference": "zsh-debuginfo-0:5.5.1-9.el8.aarch64",
        "relates_to_product_reference": "AppStream-8.6.0.GA"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "zsh-debuginfo-0:5.5.1-9.el8.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 8)",
          "product_id": "AppStream-8.6.0.GA:zsh-debuginfo-0:5.5.1-9.el8.ppc64le"
        },
        "product_reference": "zsh-debuginfo-0:5.5.1-9.el8.ppc64le",
        "relates_to_product_reference": "AppStream-8.6.0.GA"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "zsh-debuginfo-0:5.5.1-9.el8.s390x as a component of Red Hat Enterprise Linux AppStream (v. 8)",
          "product_id": "AppStream-8.6.0.GA:zsh-debuginfo-0:5.5.1-9.el8.s390x"
        },
        "product_reference": "zsh-debuginfo-0:5.5.1-9.el8.s390x",
        "relates_to_product_reference": "AppStream-8.6.0.GA"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "zsh-debuginfo-0:5.5.1-9.el8.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 8)",
          "product_id": "AppStream-8.6.0.GA:zsh-debuginfo-0:5.5.1-9.el8.x86_64"
        },
        "product_reference": "zsh-debuginfo-0:5.5.1-9.el8.x86_64",
        "relates_to_product_reference": "AppStream-8.6.0.GA"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "zsh-debugsource-0:5.5.1-9.el8.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 8)",
          "product_id": "AppStream-8.6.0.GA:zsh-debugsource-0:5.5.1-9.el8.aarch64"
        },
        "product_reference": "zsh-debugsource-0:5.5.1-9.el8.aarch64",
        "relates_to_product_reference": "AppStream-8.6.0.GA"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "zsh-debugsource-0:5.5.1-9.el8.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 8)",
          "product_id": "AppStream-8.6.0.GA:zsh-debugsource-0:5.5.1-9.el8.ppc64le"
        },
        "product_reference": "zsh-debugsource-0:5.5.1-9.el8.ppc64le",
        "relates_to_product_reference": "AppStream-8.6.0.GA"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "zsh-debugsource-0:5.5.1-9.el8.s390x as a component of Red Hat Enterprise Linux AppStream (v. 8)",
          "product_id": "AppStream-8.6.0.GA:zsh-debugsource-0:5.5.1-9.el8.s390x"
        },
        "product_reference": "zsh-debugsource-0:5.5.1-9.el8.s390x",
        "relates_to_product_reference": "AppStream-8.6.0.GA"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "zsh-debugsource-0:5.5.1-9.el8.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 8)",
          "product_id": "AppStream-8.6.0.GA:zsh-debugsource-0:5.5.1-9.el8.x86_64"
        },
        "product_reference": "zsh-debugsource-0:5.5.1-9.el8.x86_64",
        "relates_to_product_reference": "AppStream-8.6.0.GA"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "zsh-html-0:5.5.1-9.el8.noarch as a component of Red Hat Enterprise Linux AppStream (v. 8)",
          "product_id": "AppStream-8.6.0.GA:zsh-html-0:5.5.1-9.el8.noarch"
        },
        "product_reference": "zsh-html-0:5.5.1-9.el8.noarch",
        "relates_to_product_reference": "AppStream-8.6.0.GA"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "zsh-0:5.5.1-9.el8.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)",
          "product_id": "BaseOS-8.6.0.GA:zsh-0:5.5.1-9.el8.aarch64"
        },
        "product_reference": "zsh-0:5.5.1-9.el8.aarch64",
        "relates_to_product_reference": "BaseOS-8.6.0.GA"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "zsh-0:5.5.1-9.el8.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 8)",
          "product_id": "BaseOS-8.6.0.GA:zsh-0:5.5.1-9.el8.ppc64le"
        },
        "product_reference": "zsh-0:5.5.1-9.el8.ppc64le",
        "relates_to_product_reference": "BaseOS-8.6.0.GA"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "zsh-0:5.5.1-9.el8.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 8)",
          "product_id": "BaseOS-8.6.0.GA:zsh-0:5.5.1-9.el8.s390x"
        },
        "product_reference": "zsh-0:5.5.1-9.el8.s390x",
        "relates_to_product_reference": "BaseOS-8.6.0.GA"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "zsh-0:5.5.1-9.el8.src as a component of Red Hat Enterprise Linux BaseOS (v. 8)",
          "product_id": "BaseOS-8.6.0.GA:zsh-0:5.5.1-9.el8.src"
        },
        "product_reference": "zsh-0:5.5.1-9.el8.src",
        "relates_to_product_reference": "BaseOS-8.6.0.GA"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "zsh-0:5.5.1-9.el8.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)",
          "product_id": "BaseOS-8.6.0.GA:zsh-0:5.5.1-9.el8.x86_64"
        },
        "product_reference": "zsh-0:5.5.1-9.el8.x86_64",
        "relates_to_product_reference": "BaseOS-8.6.0.GA"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "zsh-debuginfo-0:5.5.1-9.el8.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)",
          "product_id": "BaseOS-8.6.0.GA:zsh-debuginfo-0:5.5.1-9.el8.aarch64"
        },
        "product_reference": "zsh-debuginfo-0:5.5.1-9.el8.aarch64",
        "relates_to_product_reference": "BaseOS-8.6.0.GA"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "zsh-debuginfo-0:5.5.1-9.el8.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 8)",
          "product_id": "BaseOS-8.6.0.GA:zsh-debuginfo-0:5.5.1-9.el8.ppc64le"
        },
        "product_reference": "zsh-debuginfo-0:5.5.1-9.el8.ppc64le",
        "relates_to_product_reference": "BaseOS-8.6.0.GA"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "zsh-debuginfo-0:5.5.1-9.el8.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 8)",
          "product_id": "BaseOS-8.6.0.GA:zsh-debuginfo-0:5.5.1-9.el8.s390x"
        },
        "product_reference": "zsh-debuginfo-0:5.5.1-9.el8.s390x",
        "relates_to_product_reference": "BaseOS-8.6.0.GA"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "zsh-debuginfo-0:5.5.1-9.el8.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)",
          "product_id": "BaseOS-8.6.0.GA:zsh-debuginfo-0:5.5.1-9.el8.x86_64"
        },
        "product_reference": "zsh-debuginfo-0:5.5.1-9.el8.x86_64",
        "relates_to_product_reference": "BaseOS-8.6.0.GA"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "zsh-debugsource-0:5.5.1-9.el8.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)",
          "product_id": "BaseOS-8.6.0.GA:zsh-debugsource-0:5.5.1-9.el8.aarch64"
        },
        "product_reference": "zsh-debugsource-0:5.5.1-9.el8.aarch64",
        "relates_to_product_reference": "BaseOS-8.6.0.GA"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "zsh-debugsource-0:5.5.1-9.el8.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 8)",
          "product_id": "BaseOS-8.6.0.GA:zsh-debugsource-0:5.5.1-9.el8.ppc64le"
        },
        "product_reference": "zsh-debugsource-0:5.5.1-9.el8.ppc64le",
        "relates_to_product_reference": "BaseOS-8.6.0.GA"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "zsh-debugsource-0:5.5.1-9.el8.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 8)",
          "product_id": "BaseOS-8.6.0.GA:zsh-debugsource-0:5.5.1-9.el8.s390x"
        },
        "product_reference": "zsh-debugsource-0:5.5.1-9.el8.s390x",
        "relates_to_product_reference": "BaseOS-8.6.0.GA"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "zsh-debugsource-0:5.5.1-9.el8.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)",
          "product_id": "BaseOS-8.6.0.GA:zsh-debugsource-0:5.5.1-9.el8.x86_64"
        },
        "product_reference": "zsh-debugsource-0:5.5.1-9.el8.x86_64",
        "relates_to_product_reference": "BaseOS-8.6.0.GA"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "zsh-html-0:5.5.1-9.el8.noarch as a component of Red Hat Enterprise Linux BaseOS (v. 8)",
          "product_id": "BaseOS-8.6.0.GA:zsh-html-0:5.5.1-9.el8.noarch"
        },
        "product_reference": "zsh-html-0:5.5.1-9.el8.noarch",
        "relates_to_product_reference": "BaseOS-8.6.0.GA"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2021-45444",
      "cwe": {
        "id": "CWE-77",
        "name": "Improper Neutralization of Special Elements used in a Command (\u0027Command Injection\u0027)"
      },
      "discovery_date": "2022-02-14T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2054089"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A vulnerability was found in zsh in the parsecolorchar() function of prompt.c file. This flaw allows an attacker to perform code execution if they control a command output inside the prompt, as stated by a %F%K argument. This occurs because of recursive PROMPT_SUBST expansion.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "zsh: Prompt expansion vulnerability",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "Red Hat Enterprise Linux 6 and 7 are not affected, because the vulnerable function is not present in the code-base.\n\nRed Hat Product Security has rated this issue as having a Moderate security impact, and the issue is not currently planned to be addressed in future updates for Red Hat Enterprise Linux 6 and 7, hence, marked as Out-of-Support-Scope. \n\nFor additional information, refer to the Issue Severity Classification: https://access.redhat.com/security/updates/classification/ and Red Hat Enterprise Linux Life Cycle \u0026 Updates Policy: https://access.redhat.com/support/policy/updates/errata/.",
          "title": "Statement"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
        "fixed": [
          "AppStream-8.6.0.GA:zsh-0:5.5.1-9.el8.aarch64",
          "AppStream-8.6.0.GA:zsh-0:5.5.1-9.el8.ppc64le",
          "AppStream-8.6.0.GA:zsh-0:5.5.1-9.el8.s390x",
          "AppStream-8.6.0.GA:zsh-0:5.5.1-9.el8.src",
          "AppStream-8.6.0.GA:zsh-0:5.5.1-9.el8.x86_64",
          "AppStream-8.6.0.GA:zsh-debuginfo-0:5.5.1-9.el8.aarch64",
          "AppStream-8.6.0.GA:zsh-debuginfo-0:5.5.1-9.el8.ppc64le",
          "AppStream-8.6.0.GA:zsh-debuginfo-0:5.5.1-9.el8.s390x",
          "AppStream-8.6.0.GA:zsh-debuginfo-0:5.5.1-9.el8.x86_64",
          "AppStream-8.6.0.GA:zsh-debugsource-0:5.5.1-9.el8.aarch64",
          "AppStream-8.6.0.GA:zsh-debugsource-0:5.5.1-9.el8.ppc64le",
          "AppStream-8.6.0.GA:zsh-debugsource-0:5.5.1-9.el8.s390x",
          "AppStream-8.6.0.GA:zsh-debugsource-0:5.5.1-9.el8.x86_64",
          "AppStream-8.6.0.GA:zsh-html-0:5.5.1-9.el8.noarch",
          "BaseOS-8.6.0.GA:zsh-0:5.5.1-9.el8.aarch64",
          "BaseOS-8.6.0.GA:zsh-0:5.5.1-9.el8.ppc64le",
          "BaseOS-8.6.0.GA:zsh-0:5.5.1-9.el8.s390x",
          "BaseOS-8.6.0.GA:zsh-0:5.5.1-9.el8.src",
          "BaseOS-8.6.0.GA:zsh-0:5.5.1-9.el8.x86_64",
          "BaseOS-8.6.0.GA:zsh-debuginfo-0:5.5.1-9.el8.aarch64",
          "BaseOS-8.6.0.GA:zsh-debuginfo-0:5.5.1-9.el8.ppc64le",
          "BaseOS-8.6.0.GA:zsh-debuginfo-0:5.5.1-9.el8.s390x",
          "BaseOS-8.6.0.GA:zsh-debuginfo-0:5.5.1-9.el8.x86_64",
          "BaseOS-8.6.0.GA:zsh-debugsource-0:5.5.1-9.el8.aarch64",
          "BaseOS-8.6.0.GA:zsh-debugsource-0:5.5.1-9.el8.ppc64le",
          "BaseOS-8.6.0.GA:zsh-debugsource-0:5.5.1-9.el8.s390x",
          "BaseOS-8.6.0.GA:zsh-debugsource-0:5.5.1-9.el8.x86_64",
          "BaseOS-8.6.0.GA:zsh-html-0:5.5.1-9.el8.noarch"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2021-45444"
        },
        {
          "category": "external",
          "summary": "RHBZ#2054089",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2054089"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2021-45444",
          "url": "https://www.cve.org/CVERecord?id=CVE-2021-45444"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2021-45444",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-45444"
        },
        {
          "category": "external",
          "summary": "https://www.zsh.org/mla/announce/msg00133.html",
          "url": "https://www.zsh.org/mla/announce/msg00133.html"
        }
      ],
      "release_date": "2022-02-12T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2022-05-10T13:59:26+00:00",
          "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258",
          "product_ids": [
            "AppStream-8.6.0.GA:zsh-0:5.5.1-9.el8.aarch64",
            "AppStream-8.6.0.GA:zsh-0:5.5.1-9.el8.ppc64le",
            "AppStream-8.6.0.GA:zsh-0:5.5.1-9.el8.s390x",
            "AppStream-8.6.0.GA:zsh-0:5.5.1-9.el8.src",
            "AppStream-8.6.0.GA:zsh-0:5.5.1-9.el8.x86_64",
            "AppStream-8.6.0.GA:zsh-debuginfo-0:5.5.1-9.el8.aarch64",
            "AppStream-8.6.0.GA:zsh-debuginfo-0:5.5.1-9.el8.ppc64le",
            "AppStream-8.6.0.GA:zsh-debuginfo-0:5.5.1-9.el8.s390x",
            "AppStream-8.6.0.GA:zsh-debuginfo-0:5.5.1-9.el8.x86_64",
            "AppStream-8.6.0.GA:zsh-debugsource-0:5.5.1-9.el8.aarch64",
            "AppStream-8.6.0.GA:zsh-debugsource-0:5.5.1-9.el8.ppc64le",
            "AppStream-8.6.0.GA:zsh-debugsource-0:5.5.1-9.el8.s390x",
            "AppStream-8.6.0.GA:zsh-debugsource-0:5.5.1-9.el8.x86_64",
            "AppStream-8.6.0.GA:zsh-html-0:5.5.1-9.el8.noarch",
            "BaseOS-8.6.0.GA:zsh-0:5.5.1-9.el8.aarch64",
            "BaseOS-8.6.0.GA:zsh-0:5.5.1-9.el8.ppc64le",
            "BaseOS-8.6.0.GA:zsh-0:5.5.1-9.el8.s390x",
            "BaseOS-8.6.0.GA:zsh-0:5.5.1-9.el8.src",
            "BaseOS-8.6.0.GA:zsh-0:5.5.1-9.el8.x86_64",
            "BaseOS-8.6.0.GA:zsh-debuginfo-0:5.5.1-9.el8.aarch64",
            "BaseOS-8.6.0.GA:zsh-debuginfo-0:5.5.1-9.el8.ppc64le",
            "BaseOS-8.6.0.GA:zsh-debuginfo-0:5.5.1-9.el8.s390x",
            "BaseOS-8.6.0.GA:zsh-debuginfo-0:5.5.1-9.el8.x86_64",
            "BaseOS-8.6.0.GA:zsh-debugsource-0:5.5.1-9.el8.aarch64",
            "BaseOS-8.6.0.GA:zsh-debugsource-0:5.5.1-9.el8.ppc64le",
            "BaseOS-8.6.0.GA:zsh-debugsource-0:5.5.1-9.el8.s390x",
            "BaseOS-8.6.0.GA:zsh-debugsource-0:5.5.1-9.el8.x86_64",
            "BaseOS-8.6.0.GA:zsh-html-0:5.5.1-9.el8.noarch"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2022:2120"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "AppStream-8.6.0.GA:zsh-0:5.5.1-9.el8.aarch64",
            "AppStream-8.6.0.GA:zsh-0:5.5.1-9.el8.ppc64le",
            "AppStream-8.6.0.GA:zsh-0:5.5.1-9.el8.s390x",
            "AppStream-8.6.0.GA:zsh-0:5.5.1-9.el8.src",
            "AppStream-8.6.0.GA:zsh-0:5.5.1-9.el8.x86_64",
            "AppStream-8.6.0.GA:zsh-debuginfo-0:5.5.1-9.el8.aarch64",
            "AppStream-8.6.0.GA:zsh-debuginfo-0:5.5.1-9.el8.ppc64le",
            "AppStream-8.6.0.GA:zsh-debuginfo-0:5.5.1-9.el8.s390x",
            "AppStream-8.6.0.GA:zsh-debuginfo-0:5.5.1-9.el8.x86_64",
            "AppStream-8.6.0.GA:zsh-debugsource-0:5.5.1-9.el8.aarch64",
            "AppStream-8.6.0.GA:zsh-debugsource-0:5.5.1-9.el8.ppc64le",
            "AppStream-8.6.0.GA:zsh-debugsource-0:5.5.1-9.el8.s390x",
            "AppStream-8.6.0.GA:zsh-debugsource-0:5.5.1-9.el8.x86_64",
            "AppStream-8.6.0.GA:zsh-html-0:5.5.1-9.el8.noarch",
            "BaseOS-8.6.0.GA:zsh-0:5.5.1-9.el8.aarch64",
            "BaseOS-8.6.0.GA:zsh-0:5.5.1-9.el8.ppc64le",
            "BaseOS-8.6.0.GA:zsh-0:5.5.1-9.el8.s390x",
            "BaseOS-8.6.0.GA:zsh-0:5.5.1-9.el8.src",
            "BaseOS-8.6.0.GA:zsh-0:5.5.1-9.el8.x86_64",
            "BaseOS-8.6.0.GA:zsh-debuginfo-0:5.5.1-9.el8.aarch64",
            "BaseOS-8.6.0.GA:zsh-debuginfo-0:5.5.1-9.el8.ppc64le",
            "BaseOS-8.6.0.GA:zsh-debuginfo-0:5.5.1-9.el8.s390x",
            "BaseOS-8.6.0.GA:zsh-debuginfo-0:5.5.1-9.el8.x86_64",
            "BaseOS-8.6.0.GA:zsh-debugsource-0:5.5.1-9.el8.aarch64",
            "BaseOS-8.6.0.GA:zsh-debugsource-0:5.5.1-9.el8.ppc64le",
            "BaseOS-8.6.0.GA:zsh-debugsource-0:5.5.1-9.el8.s390x",
            "BaseOS-8.6.0.GA:zsh-debugsource-0:5.5.1-9.el8.x86_64",
            "BaseOS-8.6.0.GA:zsh-html-0:5.5.1-9.el8.noarch"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "zsh: Prompt expansion vulnerability"
    }
  ]
}

CVE-2021-45444 (GCVE-0-2021-45444)

Vulnerability from cvelistv5 – Published: 2022-02-13 05:32 – Updated: 2024-08-04 04:39

Summary

In zsh before 5.8.1, an attacker can achieve code execution if they control a command output inside the prompt, as demonstrated by a %F argument. This occurs because of recursive PROMPT_SUBST expansion.

Severity ?

No CVSS data available.

CWE

Assigner

mitre

References

URL

Tags

	https://zsh.sourceforge.io/releases.html	x_refsource_MISC
	https://vuln.ryotak.me/advisories/63	x_refsource_MISC
	https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
	https://www.debian.org/security/2022/dsa-5078	vendor-advisoryx_refsource_DEBIAN
	https://lists.debian.org/debian-lts-announce/2022…	mailing-listx_refsource_MLIST
	https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
	https://support.apple.com/kb/HT213257	x_refsource_CONFIRM
	https://support.apple.com/kb/HT213256	x_refsource_CONFIRM
	https://support.apple.com/kb/HT213255	x_refsource_CONFIRM
	http://seclists.org/fulldisclosure/2022/May/33	mailing-listx_refsource_FULLDISC
	http://seclists.org/fulldisclosure/2022/May/35	mailing-listx_refsource_FULLDISC
	http://seclists.org/fulldisclosure/2022/May/38	mailing-listx_refsource_FULLDISC

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T04:39:20.752Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://zsh.sourceforge.io/releases.html"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://vuln.ryotak.me/advisories/63"
          },
          {
            "name": "FEDORA-2022-adf0c6d196",
            "tags": [
              "vendor-advisory",
              "x_refsource_FEDORA",
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2P3LPMGENEHKDWFO4MWMZSZL6G7Y4CV7/"
          },
          {
            "name": "DSA-5078",
            "tags": [
              "vendor-advisory",
              "x_refsource_DEBIAN",
              "x_transferred"
            ],
            "url": "https://www.debian.org/security/2022/dsa-5078"
          },
          {
            "name": "[debian-lts-announce] 20220218 [SECURITY] [DLA 2926-1] zsh security update",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2022/02/msg00020.html"
          },
          {
            "name": "FEDORA-2022-0a06987c3c",
            "tags": [
              "vendor-advisory",
              "x_refsource_FEDORA",
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BWF3EXNBX5SVFDBL4ZFOD4GJBWFUKWN4/"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://support.apple.com/kb/HT213257"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://support.apple.com/kb/HT213256"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://support.apple.com/kb/HT213255"
          },
          {
            "name": "20220516 APPLE-SA-2022-05-16-4 Security Update 2022-004 Catalina",
            "tags": [
              "mailing-list",
              "x_refsource_FULLDISC",
              "x_transferred"
            ],
            "url": "http://seclists.org/fulldisclosure/2022/May/33"
          },
          {
            "name": "20220516 APPLE-SA-2022-05-16-3 macOS Big Sur 11.6.6",
            "tags": [
              "mailing-list",
              "x_refsource_FULLDISC",
              "x_transferred"
            ],
            "url": "http://seclists.org/fulldisclosure/2022/May/35"
          },
          {
            "name": "20220516 APPLE-SA-2022-05-16-2 macOS Monterey 12.4",
            "tags": [
              "mailing-list",
              "x_refsource_FULLDISC",
              "x_transferred"
            ],
            "url": "http://seclists.org/fulldisclosure/2022/May/38"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In zsh before 5.8.1, an attacker can achieve code execution if they control a command output inside the prompt, as demonstrated by a %F argument. This occurs because of recursive PROMPT_SUBST expansion."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2022-05-17T06:08:11.000Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://zsh.sourceforge.io/releases.html"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://vuln.ryotak.me/advisories/63"
        },
        {
          "name": "FEDORA-2022-adf0c6d196",
          "tags": [
            "vendor-advisory",
            "x_refsource_FEDORA"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2P3LPMGENEHKDWFO4MWMZSZL6G7Y4CV7/"
        },
        {
          "name": "DSA-5078",
          "tags": [
            "vendor-advisory",
            "x_refsource_DEBIAN"
          ],
          "url": "https://www.debian.org/security/2022/dsa-5078"
        },
        {
          "name": "[debian-lts-announce] 20220218 [SECURITY] [DLA 2926-1] zsh security update",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "https://lists.debian.org/debian-lts-announce/2022/02/msg00020.html"
        },
        {
          "name": "FEDORA-2022-0a06987c3c",
          "tags": [
            "vendor-advisory",
            "x_refsource_FEDORA"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BWF3EXNBX5SVFDBL4ZFOD4GJBWFUKWN4/"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://support.apple.com/kb/HT213257"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://support.apple.com/kb/HT213256"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://support.apple.com/kb/HT213255"
        },
        {
          "name": "20220516 APPLE-SA-2022-05-16-4 Security Update 2022-004 Catalina",
          "tags": [
            "mailing-list",
            "x_refsource_FULLDISC"
          ],
          "url": "http://seclists.org/fulldisclosure/2022/May/33"
        },
        {
          "name": "20220516 APPLE-SA-2022-05-16-3 macOS Big Sur 11.6.6",
          "tags": [
            "mailing-list",
            "x_refsource_FULLDISC"
          ],
          "url": "http://seclists.org/fulldisclosure/2022/May/35"
        },
        {
          "name": "20220516 APPLE-SA-2022-05-16-2 macOS Monterey 12.4",
          "tags": [
            "mailing-list",
            "x_refsource_FULLDISC"
          ],
          "url": "http://seclists.org/fulldisclosure/2022/May/38"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2021-45444",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "n/a",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "n/a"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "n/a"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "In zsh before 5.8.1, an attacker can achieve code execution if they control a command output inside the prompt, as demonstrated by a %F argument. This occurs because of recursive PROMPT_SUBST expansion."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "n/a"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://zsh.sourceforge.io/releases.html",
              "refsource": "MISC",
              "url": "https://zsh.sourceforge.io/releases.html"
            },
            {
              "name": "https://vuln.ryotak.me/advisories/63",
              "refsource": "MISC",
              "url": "https://vuln.ryotak.me/advisories/63"
            },
            {
              "name": "FEDORA-2022-adf0c6d196",
              "refsource": "FEDORA",
              "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2P3LPMGENEHKDWFO4MWMZSZL6G7Y4CV7/"
            },
            {
              "name": "DSA-5078",
              "refsource": "DEBIAN",
              "url": "https://www.debian.org/security/2022/dsa-5078"
            },
            {
              "name": "[debian-lts-announce] 20220218 [SECURITY] [DLA 2926-1] zsh security update",
              "refsource": "MLIST",
              "url": "https://lists.debian.org/debian-lts-announce/2022/02/msg00020.html"
            },
            {
              "name": "FEDORA-2022-0a06987c3c",
              "refsource": "FEDORA",
              "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BWF3EXNBX5SVFDBL4ZFOD4GJBWFUKWN4/"
            },
            {
              "name": "https://support.apple.com/kb/HT213257",
              "refsource": "CONFIRM",
              "url": "https://support.apple.com/kb/HT213257"
            },
            {
              "name": "https://support.apple.com/kb/HT213256",
              "refsource": "CONFIRM",
              "url": "https://support.apple.com/kb/HT213256"
            },
            {
              "name": "https://support.apple.com/kb/HT213255",
              "refsource": "CONFIRM",
              "url": "https://support.apple.com/kb/HT213255"
            },
            {
              "name": "20220516 APPLE-SA-2022-05-16-4 Security Update 2022-004 Catalina",
              "refsource": "FULLDISC",
              "url": "http://seclists.org/fulldisclosure/2022/May/33"
            },
            {
              "name": "20220516 APPLE-SA-2022-05-16-3 macOS Big Sur 11.6.6",
              "refsource": "FULLDISC",
              "url": "http://seclists.org/fulldisclosure/2022/May/35"
            },
            {
              "name": "20220516 APPLE-SA-2022-05-16-2 macOS Monterey 12.4",
              "refsource": "FULLDISC",
              "url": "http://seclists.org/fulldisclosure/2022/May/38"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2021-45444",
    "datePublished": "2022-02-13T05:32:21.000Z",
    "dateReserved": "2021-12-21T00:00:00.000Z",
    "dateUpdated": "2024-08-04T04:39:20.752Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

RHSA-2022:2120

CVE-2021-45444 (GCVE-0-2021-45444)

Tags

Sightings

Nomenclature