ubuntu-cve-2015-20109
Vulnerability from osv_ubuntu
Published
2023-06-25 17:15
Modified
2026-04-22 07:37
Summary
Details

end_pattern (called from internal_fnmatch) in the GNU C Library (aka glibc or libc6) before 2.22 might allow context-dependent attackers to cause a denial of service (application crash), as demonstrated by use of the fnmatch library function with the **(!() pattern. NOTE: this is not the same as CVE-2015-8984; also, some Linux distributions have fixed CVE-2015-8984 but have not fixed this additional fnmatch issue.

Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
N/A (UNKNOWN)
medium
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "eglibc-source",
            "binary_version": "2.19-0ubuntu6.15+esm3"
          },
          {
            "binary_name": "libc-bin",
            "binary_version": "2.19-0ubuntu6.15+esm3"
          },
          {
            "binary_name": "libc-dev-bin",
            "binary_version": "2.19-0ubuntu6.15+esm3"
          },
          {
            "binary_name": "libc6",
            "binary_version": "2.19-0ubuntu6.15+esm3"
          },
          {
            "binary_name": "libc6-amd64",
            "binary_version": "2.19-0ubuntu6.15+esm3"
          },
          {
            "binary_name": "libc6-armel",
            "binary_version": "2.19-0ubuntu6.15+esm3"
          },
          {
            "binary_name": "libc6-dev-amd64",
            "binary_version": "2.19-0ubuntu6.15+esm3"
          },
          {
            "binary_name": "libc6-dev-armel",
            "binary_version": "2.19-0ubuntu6.15+esm3"
          },
          {
            "binary_name": "libc6-dev-i386",
            "binary_version": "2.19-0ubuntu6.15+esm3"
          },
          {
            "binary_name": "libc6-dev-x32",
            "binary_version": "2.19-0ubuntu6.15+esm3"
          },
          {
            "binary_name": "libc6-i386",
            "binary_version": "2.19-0ubuntu6.15+esm3"
          },
          {
            "binary_name": "libc6-pic",
            "binary_version": "2.19-0ubuntu6.15+esm3"
          },
          {
            "binary_name": "libc6-prof",
            "binary_version": "2.19-0ubuntu6.15+esm3"
          },
          {
            "binary_name": "libc6-x32",
            "binary_version": "2.19-0ubuntu6.15+esm3"
          },
          {
            "binary_name": "multiarch-support",
            "binary_version": "2.19-0ubuntu6.15+esm3"
          },
          {
            "binary_name": "nscd",
            "binary_version": "2.19-0ubuntu6.15+esm3"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:14.04:LTS",
        "name": "eglibc",
        "purl": "pkg:deb/ubuntu/eglibc@2.19-0ubuntu6.15+esm3?arch=source\u0026distro=trusty/esm"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.19-0ubuntu6.15+esm3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.17-93ubuntu4",
        "2.18-0ubuntu1",
        "2.18-0ubuntu2",
        "2.18-0ubuntu4",
        "2.18-0ubuntu5",
        "2.18-0ubuntu6",
        "2.18-0ubuntu7",
        "2.19-0ubuntu2",
        "2.19-0ubuntu3",
        "2.19-0ubuntu4",
        "2.19-0ubuntu5",
        "2.19-0ubuntu6",
        "2.19-0ubuntu6.1",
        "2.19-0ubuntu6.3",
        "2.19-0ubuntu6.4",
        "2.19-0ubuntu6.5",
        "2.19-0ubuntu6.6",
        "2.19-0ubuntu6.7",
        "2.19-0ubuntu6.8",
        "2.19-0ubuntu6.9",
        "2.19-0ubuntu6.10",
        "2.19-0ubuntu6.11",
        "2.19-0ubuntu6.13",
        "2.19-0ubuntu6.14",
        "2.19-0ubuntu6.15",
        "2.19-0ubuntu6.15+esm1",
        "2.19-0ubuntu6.15+esm2"
      ]
    }
  ],
  "aliases": [],
  "details": "end_pattern (called from internal_fnmatch) in the GNU C Library (aka glibc or libc6) before 2.22 might allow context-dependent attackers to cause a denial of service (application crash), as demonstrated by use of the fnmatch library function with the **(!() pattern. NOTE: this is not the same as CVE-2015-8984; also, some Linux distributions have fixed CVE-2015-8984 but have not fixed this additional fnmatch issue.",
  "id": "UBUNTU-CVE-2015-20109",
  "modified": "2026-04-22T07:37:53Z",
  "published": "2023-06-25T17:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2015-20109"
    },
    {
      "type": "REPORT",
      "url": "https://sourceware.org/bugzilla/show_bug.cgi?id=18036"
    },
    {
      "type": "REPORT",
      "url": "https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=c2c6d39fab901c97c18fa3a3a3658d9dc3f7df61"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2015-20109"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-6762-1"
    }
  ],
  "related": [
    "USN-6762-1"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2015-20109"
  ]
}



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