ubuntu-cve-2014-6277
Vulnerability from osv_ubuntu
Published
2014-09-27 00:00
Modified
2025-09-08 16:43
Summary
Details

GNU Bash through 4.3 bash43-026 does not properly parse function definitions in the values of environment variables, which allows remote attackers to execute arbitrary code or cause a denial of service (uninitialized memory access, and untrusted-pointer read and write operations) via a crafted environment, as demonstrated by vectors involving the ForceCommand feature in OpenSSH sshd, the mod_cgi and mod_cgid modules in the Apache HTTP Server, scripts executed by unspecified DHCP clients, and other situations in which setting the environment occurs across a privilege boundary from Bash execution. NOTE: this vulnerability exists because of an incomplete fix for CVE-2014-6271 and CVE-2014-7169.

Severity
N/A (UNKNOWN)
medium
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "bash",
            "binary_version": "4.3-7ubuntu1.5"
          },
          {
            "binary_name": "bash-builtins",
            "binary_version": "4.3-7ubuntu1.5"
          },
          {
            "binary_name": "bash-static",
            "binary_version": "4.3-7ubuntu1.5"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:14.04:LTS",
        "name": "bash",
        "purl": "pkg:deb/ubuntu/bash@4.3-7ubuntu1.5?arch=source\u0026distro=trusty"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.3-7ubuntu1.5"
            }
          ],
          "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"
      ]
    }
  ],
  "aliases": [],
  "details": "GNU Bash through 4.3 bash43-026 does not properly parse function definitions in the values of environment variables, which allows remote attackers to execute arbitrary code or cause a denial of service (uninitialized memory access, and untrusted-pointer read and write operations) via a crafted environment, as demonstrated by vectors involving the ForceCommand feature in OpenSSH sshd, the mod_cgi and mod_cgid modules in the Apache HTTP Server, scripts executed by unspecified DHCP clients, and other situations in which setting the environment occurs across a privilege boundary from Bash execution.  NOTE: this vulnerability exists because of an incomplete fix for CVE-2014-6271 and CVE-2014-7169.",
  "id": "UBUNTU-CVE-2014-6277",
  "modified": "2025-09-08T16:43:13Z",
  "published": "2014-09-27T00:00:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2014-6277"
    },
    {
      "type": "REPORT",
      "url": "http://lcamtuf.blogspot.ca/2014/09/bash-bug-apply-unofficial-patch-now.html"
    },
    {
      "type": "REPORT",
      "url": "http://www.openwall.com/lists/oss-security/2014/09/27/5"
    },
    {
      "type": "REPORT",
      "url": "https://twitter.com/lcamtuf/status/515755449203687425"
    },
    {
      "type": "REPORT",
      "url": "http://seclists.org/fulldisclosure/2014/Oct/9"
    },
    {
      "type": "REPORT",
      "url": "http://lcamtuf.blogspot.ca/2014/10/bash-bug-how-we-finally-cracked.html"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-2380-1"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2014-6277"
    }
  ],
  "related": [
    "USN-2380-1"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2014-6277"
  ]
}



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