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CVE-2012-2136 (GCVE-0-2012-2136)

Vulnerability from cvelistv5 – Published: 2012-08-09 10:00 – Updated: 2024-08-06 19:26
VLAI
Summary
The sock_alloc_send_pskb function in net/core/sock.c in the Linux kernel before 3.4.5 does not properly validate a certain length value, which allows local users to cause a denial of service (heap-based buffer overflow and system crash) or possibly gain privileges by leveraging access to a TUN/TAP device.
Severity
No CVSS data available.
CWE
  • n/a
Assigner
References
URL Tags
http://www.kernel.org/pub/linux/kernel/v3.x/Chang… x_refsource_CONFIRM
http://rhn.redhat.com/errata/RHSA-2012-0743.html vendor-advisoryx_refsource_REDHAT
http://git.kernel.org/?p=linux/kernel/git/torvald… x_refsource_CONFIRM
http://www.securityfocus.com/bid/53721 vdb-entryx_refsource_BID
https://github.com/torvalds/linux/commit/cc9b17ad… x_refsource_CONFIRM
http://www.ubuntu.com/usn/USN-1535-1 vendor-advisoryx_refsource_UBUNTU
http://ubuntu.com/usn/usn-1529-1 vendor-advisoryx_refsource_UBUNTU
https://bugzilla.redhat.com/show_bug.cgi?id=816289 x_refsource_CONFIRM
http://rhn.redhat.com/errata/RHSA-2012-1087.html vendor-advisoryx_refsource_REDHAT
http://secunia.com/advisories/50807 third-party-advisoryx_refsource_SECUNIA
Date Public
2012-07-16 00:00
Show details on NVD website
To clipboard 

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              "Vendor Advisory"
            ],
            "url": "http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.4.5"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory",
              "VDB Entry"
            ],
            "url": "http://www.securityfocus.com/bid/53721"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "http://www.ubuntu.com/usn/USN-1535-1"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Issue Tracking"
            ],
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=816289"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Exploit",
              "Patch"
            ],
            "url": "https://github.com/torvalds/linux/commit/cc9b17ad29ecaa20bfe426a8d4dbfb94b13ff1cc"
          }
        ],
        "sourceIdentifier": "secalert@redhat.com",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-20"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Important",
      "current_release_date": "2026-06-27T14:03:31+00:00",
      "cve": "CVE-2012-2136",
      "id": "CVE-2012-2136",
      "initial_release_date": "2012-05-29T00:00:00+00:00",
      "product_status:fixed": "323",
      "product_status:known_not_affected": "12",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: net: insufficient data_len validation in sock_alloc_send_pskb()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2012/cve-2012-2136.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-02T12:57:15Z",
      "cve": "CVE-2012-2136",
      "id": "CVE-2012-2136",
      "initial_release_date": "2023-02-15T05:47:14Z",
      "product_status:known_not_affected": "537",
      "product_status:recommended": "135",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2012-2136",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2012-2136.json",
      "version": "16"
    }
  }
}



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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.


Detection rules are retrieved from Rulezet.


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.