CVE-2008-2936 (GCVE-0-2008-2936)

Vulnerability from cvelistv5 – Published: 2008-08-18 19:00 – Updated: 2024-08-07 09:21
VLAI
Summary
Postfix before 2.3.15, 2.4 before 2.4.8, 2.5 before 2.5.4, and 2.6 before 2.6-20080814, when the operating system supports hard links to symlinks, allows local users to append e-mail messages to a file to which a root-owned symlink points, by creating a hard link to this symlink and then sending a message. NOTE: this can be leveraged to gain privileges if there is a symlink to an init script.
Severity
No CVSS data available.
CWE
  • n/a
Assigner
redhat CNA under the redhat root
CNA scorecard B 82/100 over 1209 records in the last 180 days details
References
URL Tags
https://www.redhat.com/archives/fedora-package-an… vendor-advisoryx_refsource_FEDORA
ftp://ftp.porcupine.org/mirrors/postfix-release/o… x_refsource_CONFIRM
http://secunia.com/advisories/32231 third-party-advisoryx_refsource_SECUNIA
http://secunia.com/advisories/31469 third-party-advisoryx_refsource_SECUNIA
ftp://ftp.porcupine.org/mirrors/postfix-release/o… x_refsource_CONFIRM
http://www.debian.org/security/2008/dsa-1629 vendor-advisoryx_refsource_DEBIAN
http://secunia.com/advisories/31530 third-party-advisoryx_refsource_SECUNIA
https://www.redhat.com/archives/fedora-package-an… vendor-advisoryx_refsource_FEDORA
https://issues.rpath.com/browse/RPL-2689 x_refsource_CONFIRM
http://www.securitytracker.com/id?1020700 vdb-entryx_refsource_SECTRACK
http://www.securityfocus.com/archive/1/495632/100… mailing-listx_refsource_BUGTRAQ
http://www.kb.cert.org/vuls/id/938323 third-party-advisoryx_refsource_CERT-VN
http://article.gmane.org/gmane.mail.postfix.annou… mailing-listx_refsource_MLIST
http://securityreason.com/securityalert/4160 third-party-advisoryx_refsource_SREASON
http://www.securityfocus.com/bid/30691 vdb-entryx_refsource_BID
http://wiki.rpath.com/Advisories:rPSA-2008-0259 x_refsource_CONFIRM
http://lists.opensuse.org/opensuse-security-annou… vendor-advisoryx_refsource_SUSE
http://secunia.com/advisories/31474 third-party-advisoryx_refsource_SECUNIA
http://www.securityfocus.com/archive/1/495882/100… mailing-listx_refsource_BUGTRAQ
https://exchange.xforce.ibmcloud.com/vulnerabilit… vdb-entryx_refsource_XF
ftp://ftp.porcupine.org/mirrors/postfix-release/o… x_refsource_CONFIRM
https://www.exploit-db.com/exploits/6337 exploitx_refsource_EXPLOIT-DB
http://www.redhat.com/support/errata/RHSA-2008-08… vendor-advisoryx_refsource_REDHAT
ftp://ftp.porcupine.org/mirrors/postfix-release/e… x_refsource_CONFIRM
http://secunia.com/advisories/31500 third-party-advisoryx_refsource_SECUNIA
https://oval.cisecurity.org/repository/search/def… vdb-entrysignaturex_refsource_OVAL
http://secunia.com/advisories/31477 third-party-advisoryx_refsource_SECUNIA
http://secunia.com/advisories/31485 third-party-advisoryx_refsource_SECUNIA
https://usn.ubuntu.com/636-1/ vendor-advisoryx_refsource_UBUNTU
http://www.mandriva.com/security/advisories?name=… vendor-advisoryx_refsource_MANDRIVA
http://www.securityfocus.com/archive/1/495474/100… mailing-listx_refsource_BUGTRAQ
http://www.vupen.com/english/advisories/2008/2385 vdb-entryx_refsource_VUPEN
http://security.gentoo.org/glsa/glsa-200808-12.xml vendor-advisoryx_refsource_GENTOO
Date Public
2008-08-14 00:00
Show details on NVD website
To clipboard 

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                    "criteria": "cpe:2.3:a:postfix:postfix:2.3.10:*:*:*:*:*:*:*",
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                    "vulnerable": true
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                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "Postfix before 2.3.15, 2.4 before 2.4.8, 2.5 before 2.5.4, and 2.6 before 2.6-20080814, when the operating system supports hard links to symlinks, allows local users to append e-mail messages to a file to which a root-owned symlink points, by creating a hard link to this symlink and then sending a message.  NOTE: this can be leveraged to gain privileges if there is a symlink to an init script."
          },
          {
            "lang": "es",
            "value": "Postfix antes de 2.3.15, 2.4 anterior a 2.4.8, 2.5 anterior a 2.5.4 y 2.6 antes de 2.6-20080814, cuando el sistema operativo admite enlaces duros (hard links) a enlaces simb\u00f3licos, permite a usuarios locales a\u00f1adir mensajes de correo a un archivo al que apunta un enlace simb\u00f3lico propiedad de root, creando un enlace duro a este enlace simb\u00f3lico y enviando un mensaje despu\u00e9s. NOTA: esto puede ser utilizado para obtener privilegios si hay un enlace simb\u00f3lico a un script init."
          }
        ],
        "evaluatorComment": "Please refer to the following links for additional version information (vendor release notes):\r\n\r\n\r\nPostfix 2.3 - ftp://mirrors.loonybin.net/pub/postfix/official/postfix-2.3.15.RELEASE_NOTES\r\n\r\nPostfix 2.4 - ftp://mirrors.loonybin.net/pub/postfix/official/postfix-2.4.8.RELEASE_NOTES\r\n\r\nPostfix 2.5 - ftp://mirrors.loonybin.net/pub/postfix/official/postfix-2.5.4.RELEASE_NOTES\r\n\r\nPostfix 2.6 - ftp://mirrors.loonybin.net/pub/postfix/experimental/postfix-2.6-20080814.RELEASE_NOTES",
        "id": "CVE-2008-2936",
        "lastModified": "2026-04-23T00:35:47.467",
        "metrics": {
          "cvssMetricV2": [
            {
              "acInsufInfo": false,
              "baseSeverity": "MEDIUM",
              "cvssData": {
                "accessComplexity": "HIGH",
                "accessVector": "LOCAL",
                "authentication": "NONE",
                "availabilityImpact": "COMPLETE",
                "baseScore": 6.2,
                "confidentialityImpact": "COMPLETE",
                "integrityImpact": "COMPLETE",
                "vectorString": "AV:L/AC:H/Au:N/C:C/I:C/A:C",
                "version": "2.0"
              },
              "exploitabilityScore": 1.9,
              "impactScore": 10.0,
              "obtainAllPrivilege": true,
              "obtainOtherPrivilege": false,
              "obtainUserPrivilege": false,
              "source": "nvd@nist.gov",
              "type": "Primary",
              "userInteractionRequired": false
            }
          ]
        },
        "published": "2008-08-18T19:41:00.000",
        "references": [
          {
            "source": "secalert@redhat.com",
            "url": "ftp://ftp.porcupine.org/mirrors/postfix-release/experimental/postfix-2.6-20080814.HISTORY"
          },
          {
            "source": "secalert@redhat.com",
            "url": "ftp://ftp.porcupine.org/mirrors/postfix-release/official/postfix-2.3.15.HISTORY"
          },
          {
            "source": "secalert@redhat.com",
            "url": "ftp://ftp.porcupine.org/mirrors/postfix-release/official/postfix-2.4.8.HISTORY"
          },
          {
            "source": "secalert@redhat.com",
            "url": "ftp://ftp.porcupine.org/mirrors/postfix-release/official/postfix-2.5.4.HISTORY"
          },
          {
            "source": "secalert@redhat.com",
            "url": "http://article.gmane.org/gmane.mail.postfix.announce/110"
          },
          {
            "source": "secalert@redhat.com",
            "url": "http://lists.opensuse.org/opensuse-security-announce/2008-08/msg00002.html"
          },
          {
            "source": "secalert@redhat.com",
            "url": "http://secunia.com/advisories/31469"
          },
          {
            "source": "secalert@redhat.com",
            "url": "http://secunia.com/advisories/31474"
          },
          {
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            "url": "http://secunia.com/advisories/31477"
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          {
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            "tags": [
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            "url": "http://secunia.com/advisories/31485"
          },
          {
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            "url": "http://secunia.com/advisories/31500"
          },
          {
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            "url": "http://security.gentoo.org/glsa/glsa-200808-12.xml"
          },
          {
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            "url": "http://securityreason.com/securityalert/4160"
          },
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            "url": "http://wiki.rpath.com/Advisories:rPSA-2008-0259"
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            "url": "http://www.debian.org/security/2008/dsa-1629"
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          {
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          {
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          },
          {
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            "url": "http://lists.opensuse.org/opensuse-security-announce/2008-08/msg00002.html"
          },
          {
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            "url": "http://secunia.com/advisories/31469"
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            "url": "http://secunia.com/advisories/31474"
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          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://secunia.com/advisories/31477"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
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            "url": "http://secunia.com/advisories/31485"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
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          },
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            "url": "https://usn.ubuntu.com/636-1/"
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            "url": "https://www.exploit-db.com/exploits/6337"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://www.redhat.com/archives/fedora-package-announce/2008-October/msg00271.html"
          },
          {
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            "url": "https://www.redhat.com/archives/fedora-package-announce/2008-October/msg00287.html"
          }
        ],
        "sourceIdentifier": "secalert@redhat.com",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-264"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2025-11-21T13:15:11+00:00",
      "cve": "CVE-2008-2936",
      "id": "CVE-2008-2936",
      "initial_release_date": "2008-08-14T00:00:00+00:00",
      "product_status:fixed": "160",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "postfix privilege escalation flaw",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2008/cve-2008-2936.json",
      "version": "3"
    }
  }
}



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Tags
Taxonomy of the tags.




Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.

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.
Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

JSON
How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

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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.