Vulnerability-Lookup

ubuntu-cve-2019-9893

Vulnerability from osv_ubuntu

Published

2019-03-21 00:00

Modified

2026-04-22 07:38

Summary

Details

libseccomp before 2.4.0 did not correctly generate 64-bit syscall argument comparisons using the arithmetic operators (LT, GT, LE, GE), which might able to lead to bypassing seccomp filters and potential privilege escalations.

Severity

9.8 (Critical)


                    
                      CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2019-9893	REPORT
	https://www.openwall.com/lists/oss-security/2019/…	REPORT
	http://www.paul-moore.com/blog/d/2019/03/libsecco…	REPORT
	https://ubuntu.com/security/notices/USN-4001-1	ADVISORY
	https://ubuntu.com/security/notices/USN-4001-2	ADVISORY
	https://www.cve.org/CVERecord?id=CVE-2019-9893	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "libseccomp2",
            "binary_version": "2.4.1-0ubuntu0.14.04.2"
          },
          {
            "binary_name": "seccomp",
            "binary_version": "2.4.1-0ubuntu0.14.04.2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:14.04:LTS",
        "name": "libseccomp",
        "purl": "pkg:deb/ubuntu/libseccomp@2.4.1-0ubuntu0.14.04.2?arch=source\u0026distro=trusty/esm"
      },
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              "introduced": "0"
            },
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            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.0.1-2",
        "2.1.0+dfsg-1",
        "2.1.1-1ubuntu1~trusty3",
        "2.1.1-1ubuntu1~trusty4",
        "2.1.1-1ubuntu1~trusty5"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libseccomp2",
            "binary_version": "2.4.1-0ubuntu0.16.04.2"
          },
          {
            "binary_name": "seccomp",
            "binary_version": "2.4.1-0ubuntu0.16.04.2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "libseccomp",
        "purl": "pkg:deb/ubuntu/libseccomp@2.4.1-0ubuntu0.16.04.2?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.4.1-0ubuntu0.16.04.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.2.3-2ubuntu1",
        "2.2.3-2ubuntu2",
        "2.2.3-2ubuntu3",
        "2.2.3-3ubuntu1",
        "2.2.3-3ubuntu3",
        "2.3.1-2.1ubuntu2~16.04.1"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libseccomp2",
            "binary_version": "2.4.1-0ubuntu0.18.04.2"
          },
          {
            "binary_name": "seccomp",
            "binary_version": "2.4.1-0ubuntu0.18.04.2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "libseccomp",
        "purl": "pkg:deb/ubuntu/libseccomp@2.4.1-0ubuntu0.18.04.2?arch=source\u0026distro=bionic"
      },
      "ranges": [
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            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.3.1-2.1ubuntu3",
        "2.3.1-2.1ubuntu4",
        "2.3.1-2.1ubuntu4.1"
      ]
    }
  ],
  "aliases": [],
  "details": "libseccomp before 2.4.0 did not correctly generate 64-bit syscall argument comparisons using the arithmetic operators (LT, GT, LE, GE), which might able to lead to bypassing seccomp filters and potential privilege escalations.",
  "id": "UBUNTU-CVE-2019-9893",
  "modified": "2026-04-22T07:38:56Z",
  "published": "2019-03-21T00:00:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2019-9893"
    },
    {
      "type": "REPORT",
      "url": "https://www.openwall.com/lists/oss-security/2019/03/15/1"
    },
    {
      "type": "REPORT",
      "url": "http://www.paul-moore.com/blog/d/2019/03/libseccomp_v240.html"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-4001-1"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-4001-2"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2019-9893"
    }
  ],
  "related": [
    "USN-4001-1",
    "USN-4001-2"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2019-9893"
  ]
}

CVE-2019-9893 (GCVE-0-2019-9893)

Vulnerability from cvelistv5 – Published: 2019-03-21 02:30 – Updated: 2024-08-04 22:01

Summary

Severity

No CVSS data available.

CWE

Assigner

mitre

References

8 references

URL	Tags
https://github.com/seccomp/libseccomp/issues/139	x_refsource_MISC
https://seclists.org/oss-sec/2019/q1/179	x_refsource_MISC
https://security.gentoo.org/glsa/201904-18	vendor-advisoryx_refsource_GENTOO
https://usn.ubuntu.com/4001-1/	vendor-advisoryx_refsource_UBUNTU
https://usn.ubuntu.com/4001-2/	vendor-advisoryx_refsource_UBUNTU
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE
https://access.redhat.com/errata/RHSA-2019:3624	vendor-advisoryx_refsource_REDHAT

Show details on NVD website

JSON

To clipboard

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}

usn-4001-1

Vulnerability from osv_ubuntu

Published

2019-05-30 21:45

Modified

2026-04-22 07:36

Summary

libseccomp vulnerability

Details

Jann Horn discovered that libseccomp did not correctly generate 64-bit syscall argument comparisons with arithmetic operators (LT, GT, LE, GE). An attacker could use this to bypass intended access restrictions for argument-filtered system calls.

References

URL

Type

	https://ubuntu.com/security/notices/USN-4001-1	ADVISORY
	https://ubuntu.com/security/CVE-2019-9893	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2019-9893",
              "severity": [
                {
                  "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:16.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libseccomp2",
            "binary_version": "2.4.1-0ubuntu0.16.04.2"
          },
          {
            "binary_name": "seccomp",
            "binary_version": "2.4.1-0ubuntu0.16.04.2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "libseccomp",
        "purl": "pkg:deb/ubuntu/libseccomp@2.4.1-0ubuntu0.16.04.2?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.4.1-0ubuntu0.16.04.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.2.3-2ubuntu1",
        "2.2.3-2ubuntu2",
        "2.2.3-2ubuntu3",
        "2.2.3-3ubuntu1",
        "2.2.3-3ubuntu3",
        "2.3.1-2.1ubuntu2~16.04.1"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2019-9893",
              "severity": [
                {
                  "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:18.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libseccomp2",
            "binary_version": "2.4.1-0ubuntu0.18.04.2"
          },
          {
            "binary_name": "seccomp",
            "binary_version": "2.4.1-0ubuntu0.18.04.2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "libseccomp",
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      },
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        }
      ],
      "versions": [
        "2.3.1-2.1ubuntu3",
        "2.3.1-2.1ubuntu4",
        "2.3.1-2.1ubuntu4.1"
      ]
    }
  ],
  "aliases": [],
  "details": "Jann Horn discovered that libseccomp did not correctly generate 64-bit\nsyscall argument comparisons with arithmetic operators (LT, GT, LE, GE).\nAn attacker could use this to bypass intended access restrictions for\nargument-filtered system calls.\n",
  "id": "USN-4001-1",
  "modified": "2026-04-22T07:36:37Z",
  "published": "2019-05-30T21:45:56Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-4001-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2019-9893"
    }
  ],
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  "schema_version": "1.7.0",
  "summary": "libseccomp vulnerability",
  "upstream": [
    "UBUNTU-CVE-2019-9893"
  ]
}

usn-4001-2

Vulnerability from osv_ubuntu

Published

2019-05-30 22:57

Modified

2026-04-22 07:36

Summary

libseccomp vulnerability

Details

USN-4001-1 fixed a vulnerability in libseccomp. This update provides the corresponding update for Ubuntu 14.04 ESM.

Original advisory details:

References

URL

Type

	https://ubuntu.com/security/notices/USN-4001-2	ADVISORY
	https://ubuntu.com/security/CVE-2019-9893	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2019-9893",
              "severity": [
                {
                  "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:Pro:14.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "libseccomp2",
            "binary_version": "2.4.1-0ubuntu0.14.04.2"
          },
          {
            "binary_name": "seccomp",
            "binary_version": "2.4.1-0ubuntu0.14.04.2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:14.04:LTS",
        "name": "libseccomp",
        "purl": "pkg:deb/ubuntu/libseccomp@2.4.1-0ubuntu0.14.04.2?arch=source\u0026distro=trusty/esm"
      },
      "ranges": [
        {
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            },
            {
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            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.0.1-2",
        "2.1.0+dfsg-1",
        "2.1.1-1ubuntu1~trusty3",
        "2.1.1-1ubuntu1~trusty4",
        "2.1.1-1ubuntu1~trusty5"
      ]
    }
  ],
  "aliases": [],
  "details": "USN-4001-1 fixed a vulnerability in libseccomp. This update provides the\ncorresponding update for Ubuntu 14.04 ESM.\n\nOriginal advisory details:\n\n Jann Horn discovered that libseccomp did not correctly generate 64-bit\n syscall argument comparisons with arithmetic operators (LT, GT, LE, GE).\n An attacker could use this to bypass intended access restrictions for\n argument-filtered system calls.\n",
  "id": "USN-4001-2",
  "modified": "2026-04-22T07:36:37Z",
  "published": "2019-05-30T22:57:44Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-4001-2"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2019-9893"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "libseccomp vulnerability",
  "upstream": [
    "UBUNTU-CVE-2019-9893"
  ]
}

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.

Action not permitted

ubuntu-cve-2019-9893

Vulnerability from osv_ubuntu

CVE-2019-9893 (GCVE-0-2019-9893)

usn-4001-1

Vulnerability from osv_ubuntu

usn-4001-2

Vulnerability from osv_ubuntu

Tags

Sightings

Nomenclature