USN-2935-1 (UBUNTU-CVE-2013-7041)

Vulnerability from osv_ubuntu – Published: 2016-03-16 13:45 – Updated: 2026-04-22 07:36 – Source website
VLAI
Summary
pam vulnerabilities
Details

It was discovered that the PAM pam_userdb module incorrectly used a case-insensitive method when comparing hashed passwords. A local attacker could possibly use this issue to make brute force attacks easier. This issue only affected Ubuntu 12.04 LTS and Ubuntu 14.04 LTS. (CVE-2013-7041)

Sebastian Krahmer discovered that the PAM pam_timestamp module incorrectly performed filtering. A local attacker could use this issue to create arbitrary files, or possibly bypass authentication. This issue only affected Ubuntu 12.04 LTS and Ubuntu 14.04 LTS. (CVE-2014-2583)

Sebastien Macke discovered that the PAM pam_unix module incorrectly handled large passwords. A local attacker could possibly use this issue in certain environments to enumerate usernames or cause a denial of service. (CVE-2015-3238)

References
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2013-7041",
              "severity": [
                {
                  "score": "low",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2014-2583",
              "severity": [
                {
                  "score": "low",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2015-3238",
              "severity": [
                {
                  "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "low",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:14.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libpam-cracklib",
            "binary_version": "1.1.8-1ubuntu2.1"
          },
          {
            "binary_name": "libpam-modules",
            "binary_version": "1.1.8-1ubuntu2.1"
          },
          {
            "binary_name": "libpam-modules-bin",
            "binary_version": "1.1.8-1ubuntu2.1"
          },
          {
            "binary_name": "libpam-runtime",
            "binary_version": "1.1.8-1ubuntu2.1"
          },
          {
            "binary_name": "libpam0g",
            "binary_version": "1.1.8-1ubuntu2.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:14.04:LTS",
        "name": "pam",
        "purl": "pkg:deb/ubuntu/pam@1.1.8-1ubuntu2.1?arch=source\u0026distro=trusty"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.1.8-1ubuntu2.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.1.3-8ubuntu3",
        "1.1.3-10ubuntu1",
        "1.1.3-11ubuntu1",
        "1.1.8-1ubuntu1",
        "1.1.8-1ubuntu2"
      ]
    }
  ],
  "aliases": [],
  "details": "It was discovered that the PAM pam_userdb module incorrectly used a\ncase-insensitive method when comparing hashed passwords. A local attacker\ncould possibly use this issue to make brute force attacks easier. This\nissue only affected Ubuntu 12.04 LTS and Ubuntu 14.04 LTS. (CVE-2013-7041)\n\nSebastian Krahmer discovered that the PAM pam_timestamp module incorrectly\nperformed filtering. A local attacker could use this issue to create\narbitrary files, or possibly bypass authentication. This issue only\naffected Ubuntu 12.04 LTS and Ubuntu 14.04 LTS. (CVE-2014-2583)\n\nSebastien Macke discovered that the PAM pam_unix module incorrectly handled\nlarge passwords. A local attacker could possibly use this issue in certain\nenvironments to enumerate usernames or cause a denial of service.\n(CVE-2015-3238)\n",
  "id": "USN-2935-1",
  "modified": "2026-04-22T07:36:33Z",
  "published": "2016-03-16T13:45:39Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-2935-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2013-7041"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2014-2583"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2015-3238"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "pam vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2013-7041",
    "UBUNTU-CVE-2014-2583",
    "UBUNTU-CVE-2015-3238"
  ]
}



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