UBUNTU-CVE-2015-7547 (CVE-2015-7547)

Vulnerability from osv_ubuntu – Published: 2016-02-16 14:00 – Updated: 2026-04-22 07:37 – Source website
VLAI
Details

Multiple stack-based buffer overflows in the (1) send_dg and (2) send_vc functions in the libresolv library in the GNU C Library (aka glibc or libc6) before 2.23 allow remote attackers to cause a denial of service (crash) or possibly execute arbitrary code via a crafted DNS response that triggers a call to the getaddrinfo function with the AF_UNSPEC or AF_INET6 address family, related to performing "dual A/AAAA DNS queries" and the libnss_dns.so.2 NSS module.

Severity
8.1 (High)
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
N/A (UNKNOWN)
high
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "eglibc-source",
            "binary_version": "2.19-0ubuntu6.7"
          },
          {
            "binary_name": "libc-bin",
            "binary_version": "2.19-0ubuntu6.7"
          },
          {
            "binary_name": "libc-dev-bin",
            "binary_version": "2.19-0ubuntu6.7"
          },
          {
            "binary_name": "libc6",
            "binary_version": "2.19-0ubuntu6.7"
          },
          {
            "binary_name": "libc6-amd64",
            "binary_version": "2.19-0ubuntu6.7"
          },
          {
            "binary_name": "libc6-armel",
            "binary_version": "2.19-0ubuntu6.7"
          },
          {
            "binary_name": "libc6-dev-amd64",
            "binary_version": "2.19-0ubuntu6.7"
          },
          {
            "binary_name": "libc6-dev-armel",
            "binary_version": "2.19-0ubuntu6.7"
          },
          {
            "binary_name": "libc6-dev-i386",
            "binary_version": "2.19-0ubuntu6.7"
          },
          {
            "binary_name": "libc6-dev-ppc64",
            "binary_version": "2.19-0ubuntu6.7"
          },
          {
            "binary_name": "libc6-dev-x32",
            "binary_version": "2.19-0ubuntu6.7"
          },
          {
            "binary_name": "libc6-i386",
            "binary_version": "2.19-0ubuntu6.7"
          },
          {
            "binary_name": "libc6-pic",
            "binary_version": "2.19-0ubuntu6.7"
          },
          {
            "binary_name": "libc6-ppc64",
            "binary_version": "2.19-0ubuntu6.7"
          },
          {
            "binary_name": "libc6-prof",
            "binary_version": "2.19-0ubuntu6.7"
          },
          {
            "binary_name": "libc6-x32",
            "binary_version": "2.19-0ubuntu6.7"
          },
          {
            "binary_name": "multiarch-support",
            "binary_version": "2.19-0ubuntu6.7"
          },
          {
            "binary_name": "nscd",
            "binary_version": "2.19-0ubuntu6.7"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:14.04:LTS",
        "name": "eglibc",
        "purl": "pkg:deb/ubuntu/eglibc@2.19-0ubuntu6.7?arch=source\u0026distro=trusty"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.19-0ubuntu6.7"
            }
          ],
          "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"
      ]
    }
  ],
  "aliases": [],
  "details": "Multiple stack-based buffer overflows in the (1) send_dg and (2) send_vc functions in the libresolv library in the GNU C Library (aka glibc or libc6) before 2.23 allow remote attackers to cause a denial of service (crash) or possibly execute arbitrary code via a crafted DNS response that triggers a call to the getaddrinfo function with the AF_UNSPEC or AF_INET6 address family, related to performing \"dual A/AAAA DNS queries\" and the libnss_dns.so.2 NSS module.",
  "id": "UBUNTU-CVE-2015-7547",
  "modified": "2026-04-22T07:37:50Z",
  "published": "2016-02-16T14:00:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2015-7547"
    },
    {
      "type": "REPORT",
      "url": "https://sourceware.org/ml/libc-alpha/2016-02/msg00416.html"
    },
    {
      "type": "REPORT",
      "url": "https://googleonlinesecurity.blogspot.com/2016/02/cve-2015-7547-glibc-getaddrinfo-stack.html"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-2900-1"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2015-7547"
    }
  ],
  "related": [
    "USN-2900-1"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "high",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2015-7547"
  ]
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.



Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.