ubuntu-cve-2019-9924
Vulnerability from osv_ubuntu
Published
2019-03-22 00:00
Modified
2025-10-14 16:48
Summary
Details

rbash in Bash before 4.4-beta2 did not prevent the shell user from modifying BASH_CMDS, thus allowing the user to execute any command with the permissions of the shell.

Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.8 (High)
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
N/A (UNKNOWN)
low
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "bash",
            "binary_version": "4.3-7ubuntu1.8+esm1"
          },
          {
            "binary_name": "bash-builtins",
            "binary_version": "4.3-7ubuntu1.8+esm1"
          },
          {
            "binary_name": "bash-static",
            "binary_version": "4.3-7ubuntu1.8+esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:14.04:LTS",
        "name": "bash",
        "purl": "pkg:deb/ubuntu/bash@4.3-7ubuntu1.8+esm1?arch=source\u0026distro=trusty/esm"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.3-7ubuntu1.8+esm1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "4.2-5ubuntu3",
        "4.3-1ubuntu2",
        "4.3-2ubuntu1",
        "4.3-3ubuntu1",
        "4.3-4ubuntu1",
        "4.3-4ubuntu2",
        "4.3-6ubuntu1",
        "4.3-7ubuntu1",
        "4.3-7ubuntu1.1",
        "4.3-7ubuntu1.2",
        "4.3-7ubuntu1.3",
        "4.3-7ubuntu1.4",
        "4.3-7ubuntu1.5",
        "4.3-7ubuntu1.6",
        "4.3-7ubuntu1.7",
        "4.3-7ubuntu1.8"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "bash",
            "binary_version": "4.3-14ubuntu1.4"
          },
          {
            "binary_name": "bash-builtins",
            "binary_version": "4.3-14ubuntu1.4"
          },
          {
            "binary_name": "bash-static",
            "binary_version": "4.3-14ubuntu1.4"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "bash",
        "purl": "pkg:deb/ubuntu/bash@4.3-14ubuntu1.4?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.3-14ubuntu1.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "4.3-14ubuntu1",
        "4.3-14ubuntu1.1",
        "4.3-14ubuntu1.2",
        "4.3-14ubuntu1.3"
      ]
    }
  ],
  "aliases": [],
  "details": "rbash in Bash before 4.4-beta2 did not prevent the shell user from modifying BASH_CMDS, thus allowing the user to execute any command with the permissions of the shell.",
  "id": "UBUNTU-CVE-2019-9924",
  "modified": "2025-10-14T16:48:33Z",
  "published": "2019-03-22T00:00:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2019-9924"
    },
    {
      "type": "REPORT",
      "url": "http://git.savannah.gnu.org/cgit/bash.git/tree/CHANGES?h=bash-4.4-testing#n65"
    },
    {
      "type": "REPORT",
      "url": "https://lists.gnu.org/archive/html/bug-bash/2017-03/msg00077.html"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-4058-1"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-4058-2"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2019-9924"
    }
  ],
  "related": [
    "USN-4058-1",
    "USN-4058-2"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "low",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2019-9924"
  ]
}



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