CVE-2007-3731 (GCVE-0-2007-3731)

Vulnerability from cvelistv5 – Published: 2007-09-17 17:00 – Updated: 2024-08-07 14:28
VLAI
Summary
The Linux kernel 2.6.20 and 2.6.21 does not properly handle an invalid LDT segment selector in %cs (the xcs field) during ptrace single-step operations, which allows local users to cause a denial of service (NULL dereference and OOPS) via certain code that makes ptrace PTRACE_SETREGS and PTRACE_SINGLESTEP requests, related to the TRACE_IRQS_ON function, and possibly related to the arch_ptrace function.
Severity
No CVSS data available.
CWE
  • n/a
Assigner
References
URL Tags
http://www.securityfocus.com/bid/25801 vdb-entryx_refsource_BID
http://bugzilla.kernel.org/show_bug.cgi?id=8765 x_refsource_MISC
http://git.kernel.org/?p=linux/kernel/git/torvald… x_refsource_CONFIRM
http://osvdb.org/37286 vdb-entryx_refsource_OSVDB
http://www.redhat.com/support/errata/RHSA-2007-09… vendor-advisoryx_refsource_REDHAT
http://secunia.com/advisories/29159 third-party-advisoryx_refsource_SECUNIA
http://git.kernel.org/?p=linux/kernel/git/torvald… x_refsource_CONFIRM
http://secunia.com/advisories/27322 third-party-advisoryx_refsource_SECUNIA
http://wiki.rpath.com/wiki/Advisories:rPSA-2008-0094 x_refsource_CONFIRM
http://secunia.com/advisories/26978 third-party-advisoryx_refsource_SECUNIA
http://www.securityfocus.com/archive/1/488972/100… mailing-listx_refsource_BUGTRAQ
https://issues.rpath.com/browse/RPL-2304 x_refsource_CONFIRM
http://www.ubuntu.com/usn/usn-518-1 vendor-advisoryx_refsource_UBUNTU
http://secunia.com/advisories/26955 third-party-advisoryx_refsource_SECUNIA
https://oval.cisecurity.org/repository/search/def… vdb-entrysignaturex_refsource_OVAL
https://bugzilla.redhat.com/show_bug.cgi?id=248324 x_refsource_CONFIRM
http://secunia.com/advisories/26935 third-party-advisoryx_refsource_SECUNIA
http://www.debian.org/security/2007/dsa-1378 vendor-advisoryx_refsource_DEBIAN
Date Public
2007-07-15 00:00
Show details on NVD website
To clipboard 

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                    "matchCriteriaId": "50B422D1-6C6E-4359-A169-3EED78A1CF40",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "The Linux kernel 2.6.20 and 2.6.21 does not properly handle an invalid LDT segment selector in %cs (the xcs field) during ptrace single-step operations, which allows local users to cause a denial of service (NULL dereference and OOPS) via certain code that makes ptrace PTRACE_SETREGS and PTRACE_SINGLESTEP requests, related to the TRACE_IRQS_ON function, and possibly related to the arch_ptrace function."
          },
          {
            "lang": "es",
            "value": "El kernel de Linux 2.6.20 y 2.6.21 no maneja de forma adecuada un segmento de selecci\u00f3n LDT no v\u00e1lido en %cs (el campo xcs)a lo largo de las operaciones paso-simple ptrace, lo caul permite a usuarios loalces provocar denegaci\u00f3n de servicio (referencia NULL y OOPS) a trav\u00e9s de ciertos c\u00f3digos que realizan las respuestas ptrace PTRACE_SETREGS y PTRACE_SINGLESTEP, relacionado con la funci\u00f3n TRACE_IRQS_ON, y posiblemente relacionado con la funci\u00f3n arch_ptrace."
          }
        ],
        "id": "CVE-2007-3731",
        "lastModified": "2026-04-23T00:35:47.467",
        "metrics": {
          "cvssMetricV2": [
            {
              "acInsufInfo": false,
              "baseSeverity": "MEDIUM",
              "cvssData": {
                "accessComplexity": "LOW",
                "accessVector": "LOCAL",
                "authentication": "NONE",
                "availabilityImpact": "COMPLETE",
                "baseScore": 4.9,
                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "vectorString": "AV:L/AC:L/Au:N/C:N/I:N/A:C",
                "version": "2.0"
              },
              "exploitabilityScore": 3.9,
              "impactScore": 6.9,
              "obtainAllPrivilege": false,
              "obtainOtherPrivilege": false,
              "obtainUserPrivilege": false,
              "source": "nvd@nist.gov",
              "type": "Primary",
              "userInteractionRequired": false
            }
          ]
        },
        "published": "2007-09-17T17:17:00.000",
        "references": [
          {
            "source": "secalert@redhat.com",
            "tags": [
              "Exploit"
            ],
            "url": "http://bugzilla.kernel.org/show_bug.cgi?id=8765"
          },
          {
            "source": "secalert@redhat.com",
            "url": "http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commitdiff%3Bh=29eb51101c02df517ca64ec472d7501127ad1da8"
          },
          {
            "source": "secalert@redhat.com",
            "url": "http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commitdiff%3Bh=a10d9a71bafd3a283da240d2868e71346d2aef6f"
          },
          {
            "source": "secalert@redhat.com",
            "url": "http://osvdb.org/37286"
          },
          {
            "source": "secalert@redhat.com",
            "url": "http://secunia.com/advisories/26935"
          },
          {
            "source": "secalert@redhat.com",
            "url": "http://secunia.com/advisories/26955"
          },
          {
            "source": "secalert@redhat.com",
            "url": "http://secunia.com/advisories/26978"
          },
          {
            "source": "secalert@redhat.com",
            "url": "http://secunia.com/advisories/27322"
          },
          {
            "source": "secalert@redhat.com",
            "url": "http://secunia.com/advisories/29159"
          },
          {
            "source": "secalert@redhat.com",
            "url": "http://wiki.rpath.com/wiki/Advisories:rPSA-2008-0094"
          },
          {
            "source": "secalert@redhat.com",
            "url": "http://www.debian.org/security/2007/dsa-1378"
          },
          {
            "source": "secalert@redhat.com",
            "url": "http://www.redhat.com/support/errata/RHSA-2007-0940.html"
          },
          {
            "source": "secalert@redhat.com",
            "url": "http://www.securityfocus.com/archive/1/488972/100/0/threaded"
          },
          {
            "source": "secalert@redhat.com",
            "url": "http://www.securityfocus.com/bid/25801"
          },
          {
            "source": "secalert@redhat.com",
            "url": "http://www.ubuntu.com/usn/usn-518-1"
          },
          {
            "source": "secalert@redhat.com",
            "tags": [
              "Patch"
            ],
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=248324"
          },
          {
            "source": "secalert@redhat.com",
            "url": "https://issues.rpath.com/browse/RPL-2304"
          },
          {
            "source": "secalert@redhat.com",
            "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10394"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Exploit"
            ],
            "url": "http://bugzilla.kernel.org/show_bug.cgi?id=8765"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commitdiff%3Bh=29eb51101c02df517ca64ec472d7501127ad1da8"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commitdiff%3Bh=a10d9a71bafd3a283da240d2868e71346d2aef6f"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://osvdb.org/37286"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://secunia.com/advisories/26935"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://secunia.com/advisories/26955"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://secunia.com/advisories/26978"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://secunia.com/advisories/27322"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://secunia.com/advisories/29159"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://wiki.rpath.com/wiki/Advisories:rPSA-2008-0094"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://www.debian.org/security/2007/dsa-1378"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://www.redhat.com/support/errata/RHSA-2007-0940.html"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://www.securityfocus.com/archive/1/488972/100/0/threaded"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://www.securityfocus.com/bid/25801"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://www.ubuntu.com/usn/usn-518-1"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Patch"
            ],
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=248324"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://issues.rpath.com/browse/RPL-2304"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10394"
          }
        ],
        "sourceIdentifier": "secalert@redhat.com",
        "vendorComments": [
          {
            "comment": "This issue did not affect the versions of the Linux kernel as shipped with Red Hat Enterprise Linux 2.1, 3, or 4.",
            "lastModified": "2007-10-18T00:00:00",
            "organization": "Red Hat"
          }
        ],
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-20"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2025-11-21T13:18:53+00:00",
      "cve": "CVE-2007-3731",
      "id": "CVE-2007-3731",
      "initial_release_date": "2007-07-15T00:00:00+00:00",
      "product_status:fixed": "86",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "NULL pointer dereference triggered by ptrace",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2007/cve-2007-3731.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2023-02-15T06:11:31Z",
      "cve": "CVE-2007-3731",
      "id": "CVE-2007-3731",
      "initial_release_date": "2023-02-15T06:11:31Z",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2007-3731",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2007-3731.json",
      "version": "2"
    }
  }
}



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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.



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.