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CVE-2012-0056 (GCVE-0-2012-0056)

Vulnerability from cvelistv5 – Published: 2012-01-27 15:00 – Updated: 2024-08-06 18:09
VLAI
Summary
The mem_write function in the Linux kernel before 3.2.2, when ASLR is disabled, does not properly check permissions when writing to /proc/<pid>/mem, which allows local users to gain privileges by modifying process memory, as demonstrated by Mempodipper.
Severity
No CVSS data available.
CWE
  • n/a
References
Date Public
2012-01-17 00:00
Show details on NVD website

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          },
          {
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            "tags": [
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            ],
            "url": "http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.2.2"
          },
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            "source": "secalert@redhat.com",
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            "url": "http://www.securityfocus.com/bid/51625"
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          {
            "source": "secalert@redhat.com",
            "tags": [
              "Issue Tracking",
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            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=782642"
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          },
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          },
          {
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              "VDB Entry"
            ],
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          },
          {
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            "tags": [
              "Issue Tracking",
              "Third Party Advisory"
            ],
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=782642"
          }
        ],
        "sourceIdentifier": "secalert@redhat.com",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-264"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Important",
      "current_release_date": "2025-11-21T12:54:18+00:00",
      "cve": "CVE-2012-0056",
      "id": "CVE-2012-0056",
      "initial_release_date": "2012-01-18T00:00:00+00:00",
      "product_status:fixed": "424",
      "product_status:known_affected": "1",
      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: proc: /proc/\u003cpid\u003e/mem mem_write insufficient permission checking",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2012/cve-2012-0056.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-08-01T23:42:25Z",
      "cve": "CVE-2012-0056",
      "id": "CVE-2012-0056",
      "initial_release_date": "2023-02-15T05:49:22Z",
      "product_status:known_not_affected": "495",
      "product_status:recommended": "335",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2012-0056",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2012-0056.json",
      "version": "16"
    }
  }
}



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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.

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Detection rules are retrieved from Rulezet.

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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.


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