usn-5076-1
Vulnerability from osv_ubuntu
Published
2021-09-13 14:49
Modified
2026-06-25 10:46
Summary
git vulnerability
Details

It was discovered that Git allowed newline characters in certain repository paths. An attacker could potentially use this issue to perform cross-protocol requests.

References
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2021-40330",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:Pro:16.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "git",
            "binary_version": "1:2.7.4-0ubuntu1.10+esm1"
          },
          {
            "binary_name": "git-all",
            "binary_version": "1:2.7.4-0ubuntu1.10+esm1"
          },
          {
            "binary_name": "git-arch",
            "binary_version": "1:2.7.4-0ubuntu1.10+esm1"
          },
          {
            "binary_name": "git-core",
            "binary_version": "1:2.7.4-0ubuntu1.10+esm1"
          },
          {
            "binary_name": "git-cvs",
            "binary_version": "1:2.7.4-0ubuntu1.10+esm1"
          },
          {
            "binary_name": "git-daemon-run",
            "binary_version": "1:2.7.4-0ubuntu1.10+esm1"
          },
          {
            "binary_name": "git-daemon-sysvinit",
            "binary_version": "1:2.7.4-0ubuntu1.10+esm1"
          },
          {
            "binary_name": "git-el",
            "binary_version": "1:2.7.4-0ubuntu1.10+esm1"
          },
          {
            "binary_name": "git-email",
            "binary_version": "1:2.7.4-0ubuntu1.10+esm1"
          },
          {
            "binary_name": "git-gui",
            "binary_version": "1:2.7.4-0ubuntu1.10+esm1"
          },
          {
            "binary_name": "git-man",
            "binary_version": "1:2.7.4-0ubuntu1.10+esm1"
          },
          {
            "binary_name": "git-mediawiki",
            "binary_version": "1:2.7.4-0ubuntu1.10+esm1"
          },
          {
            "binary_name": "git-svn",
            "binary_version": "1:2.7.4-0ubuntu1.10+esm1"
          },
          {
            "binary_name": "gitk",
            "binary_version": "1:2.7.4-0ubuntu1.10+esm1"
          },
          {
            "binary_name": "gitweb",
            "binary_version": "1:2.7.4-0ubuntu1.10+esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:16.04:LTS",
        "name": "git",
        "purl": "pkg:deb/ubuntu/git@1:2.7.4-0ubuntu1.10+esm1?arch=source\u0026distro=esm-infra/xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1:2.7.4-0ubuntu1.10+esm1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1:2.5.0-1",
        "1:2.6.2-1",
        "1:2.6.3-1",
        "1:2.6.4-1",
        "1:2.7.0~rc3-1",
        "1:2.7.0-1",
        "1:2.7.3-0ubuntu1",
        "1:2.7.4-0ubuntu1",
        "1:2.7.4-0ubuntu1.1",
        "1:2.7.4-0ubuntu1.2",
        "1:2.7.4-0ubuntu1.3",
        "1:2.7.4-0ubuntu1.4",
        "1:2.7.4-0ubuntu1.5",
        "1:2.7.4-0ubuntu1.6",
        "1:2.7.4-0ubuntu1.7",
        "1:2.7.4-0ubuntu1.8",
        "1:2.7.4-0ubuntu1.9",
        "1:2.7.4-0ubuntu1.10"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2021-40330",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:18.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "git",
            "binary_version": "1:2.17.1-1ubuntu0.9"
          },
          {
            "binary_name": "git-all",
            "binary_version": "1:2.17.1-1ubuntu0.9"
          },
          {
            "binary_name": "git-cvs",
            "binary_version": "1:2.17.1-1ubuntu0.9"
          },
          {
            "binary_name": "git-daemon-run",
            "binary_version": "1:2.17.1-1ubuntu0.9"
          },
          {
            "binary_name": "git-daemon-sysvinit",
            "binary_version": "1:2.17.1-1ubuntu0.9"
          },
          {
            "binary_name": "git-el",
            "binary_version": "1:2.17.1-1ubuntu0.9"
          },
          {
            "binary_name": "git-email",
            "binary_version": "1:2.17.1-1ubuntu0.9"
          },
          {
            "binary_name": "git-gui",
            "binary_version": "1:2.17.1-1ubuntu0.9"
          },
          {
            "binary_name": "git-man",
            "binary_version": "1:2.17.1-1ubuntu0.9"
          },
          {
            "binary_name": "git-mediawiki",
            "binary_version": "1:2.17.1-1ubuntu0.9"
          },
          {
            "binary_name": "git-svn",
            "binary_version": "1:2.17.1-1ubuntu0.9"
          },
          {
            "binary_name": "gitk",
            "binary_version": "1:2.17.1-1ubuntu0.9"
          },
          {
            "binary_name": "gitweb",
            "binary_version": "1:2.17.1-1ubuntu0.9"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "git",
        "purl": "pkg:deb/ubuntu/git@1:2.17.1-1ubuntu0.9?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1:2.17.1-1ubuntu0.9"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1:2.14.1-1ubuntu4",
        "1:2.15.1-1ubuntu2",
        "1:2.17.0-1ubuntu1",
        "1:2.17.1-1ubuntu0.1",
        "1:2.17.1-1ubuntu0.3",
        "1:2.17.1-1ubuntu0.4",
        "1:2.17.1-1ubuntu0.5",
        "1:2.17.1-1ubuntu0.6",
        "1:2.17.1-1ubuntu0.7",
        "1:2.17.1-1ubuntu0.8"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2021-40330",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:20.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "git",
            "binary_version": "1:2.25.1-1ubuntu3.2"
          },
          {
            "binary_name": "git-all",
            "binary_version": "1:2.25.1-1ubuntu3.2"
          },
          {
            "binary_name": "git-cvs",
            "binary_version": "1:2.25.1-1ubuntu3.2"
          },
          {
            "binary_name": "git-daemon-run",
            "binary_version": "1:2.25.1-1ubuntu3.2"
          },
          {
            "binary_name": "git-daemon-sysvinit",
            "binary_version": "1:2.25.1-1ubuntu3.2"
          },
          {
            "binary_name": "git-el",
            "binary_version": "1:2.25.1-1ubuntu3.2"
          },
          {
            "binary_name": "git-email",
            "binary_version": "1:2.25.1-1ubuntu3.2"
          },
          {
            "binary_name": "git-gui",
            "binary_version": "1:2.25.1-1ubuntu3.2"
          },
          {
            "binary_name": "git-man",
            "binary_version": "1:2.25.1-1ubuntu3.2"
          },
          {
            "binary_name": "git-mediawiki",
            "binary_version": "1:2.25.1-1ubuntu3.2"
          },
          {
            "binary_name": "git-svn",
            "binary_version": "1:2.25.1-1ubuntu3.2"
          },
          {
            "binary_name": "gitk",
            "binary_version": "1:2.25.1-1ubuntu3.2"
          },
          {
            "binary_name": "gitweb",
            "binary_version": "1:2.25.1-1ubuntu3.2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "git",
        "purl": "pkg:deb/ubuntu/git@1:2.25.1-1ubuntu3.2?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1:2.25.1-1ubuntu3.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1:2.20.1-2ubuntu1",
        "1:2.24.0-1ubuntu1",
        "1:2.24.0-1ubuntu2",
        "1:2.25.0-1ubuntu1",
        "1:2.25.1-1ubuntu1",
        "1:2.25.1-1ubuntu2",
        "1:2.25.1-1ubuntu3",
        "1:2.25.1-1ubuntu3.1"
      ]
    }
  ],
  "aliases": [],
  "details": "It was discovered that Git allowed newline characters in\ncertain repository paths. An attacker could potentially use this issue to perform\ncross-protocol requests.\n",
  "id": "USN-5076-1",
  "modified": "2026-06-25T10:46:01Z",
  "published": "2021-09-13T14:49:00Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-5076-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-40330"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "git vulnerability",
  "upstream": [
    "UBUNTU-CVE-2021-40330"
  ]
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

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.