CVE-2012-4929 (GCVE-0-2012-4929)

Vulnerability from cvelistv5 – Published: 2012-09-15 18:00 – Updated: 2024-08-06 20:50
VLAI
Summary
The TLS protocol 1.2 and earlier, as used in Mozilla Firefox, Google Chrome, Qt, and other products, can encrypt compressed data without properly obfuscating the length of the unencrypted data, which allows man-in-the-middle attackers to obtain plaintext HTTP headers by observing length differences during a series of guesses in which a string in an HTTP request potentially matches an unknown string in an HTTP header, aka a "CRIME" attack.
Severity
No CVSS data available.
CWE
  • n/a
Assigner
mitre CNA under the mitre root
CNA scorecard E 28/100 over 2329 records in the last 180 days details
References
URL Tags
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http://rhn.redhat.com/errata/RHSA-2013-0587.html vendor-advisoryx_refsource_REDHAT
http://www.debian.org/security/2012/dsa-2579 vendor-advisoryx_refsource_DEBIAN
https://gist.github.com/3696912 x_refsource_MISC
http://www.iacr.org/cryptodb/data/paper.php?pubkey=3091 x_refsource_MISC
http://lists.fedoraproject.org/pipermail/package-… vendor-advisoryx_refsource_FEDORA
http://www.ubuntu.com/usn/USN-1898-1 vendor-advisoryx_refsource_UBUNTU
https://chromiumcodereview.appspot.com/10825183 x_refsource_CONFIRM
http://lists.opensuse.org/opensuse-updates/2012-1… vendor-advisoryx_refsource_SUSE
http://threatpost.com/en_us/blogs/crime-attack-us… x_refsource_MISC
http://www.debian.org/security/2015/dsa-3253 vendor-advisoryx_refsource_DEBIAN
http://isecpartners.com/blog/2012/9/14/details-on… x_refsource_MISC
http://lists.opensuse.org/opensuse-updates/2013-0… vendor-advisoryx_refsource_SUSE
https://community.qualys.com/blogs/securitylabs/2… x_refsource_MISC
https://github.com/mpgn/CRIME-poc x_refsource_MISC
http://news.ycombinator.com/item?id=4510829 x_refsource_MISC
http://support.apple.com/kb/HT5784 x_refsource_CONFIRM
http://www.theregister.co.uk/2012/09/14/crime_tls… x_refsource_MISC
http://lists.apple.com/archives/security-announce… vendor-advisoryx_refsource_APPLE
http://jvndb.jvn.jp/en/contents/2016/JVNDB-2016-0… third-party-advisoryx_refsource_JVNDB
http://www.ubuntu.com/usn/USN-1627-1 vendor-advisoryx_refsource_UBUNTU
http://www.debian.org/security/2013/dsa-2627 vendor-advisoryx_refsource_DEBIAN
http://code.google.com/p/chromium/issues/detail?i… x_refsource_CONFIRM
https://oval.cisecurity.org/repository/search/def… vdb-entrysignaturex_refsource_OVAL
http://arstechnica.com/security/2012/09/crime-hij… x_refsource_MISC
http://www.securityfocus.com/bid/55704 vdb-entryx_refsource_BID
http://www.ubuntu.com/usn/USN-1628-1 vendor-advisoryx_refsource_UBUNTU
https://threatpost.com/en_us/blogs/demo-crime-tls… x_refsource_MISC
http://threatpost.com/en_us/blogs/new-attack-uses… x_refsource_MISC
http://www.ekoparty.org/2012/thai-duong.php x_refsource_MISC
http://lists.opensuse.org/opensuse-updates/2013-0… vendor-advisoryx_refsource_SUSE
http://security.stackexchange.com/questions/19911… x_refsource_MISC
http://jvn.jp/en/jp/JVN65273415/index.html third-party-advisoryx_refsource_JVN
https://bugzilla.redhat.com/show_bug.cgi?id=857051 x_refsource_CONFIRM
Date Public
2012-09-05 00:00
Show details on NVD website
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        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "The TLS protocol 1.2 and earlier, as used in Mozilla Firefox, Google Chrome, Qt, and other products, can encrypt compressed data without properly obfuscating the length of the unencrypted data, which allows man-in-the-middle attackers to obtain plaintext HTTP headers by observing length differences during a series of guesses in which a string in an HTTP request potentially matches an unknown string in an HTTP header, aka a \"CRIME\" attack."
          },
          {
            "lang": "es",
            "value": "El protocolo TLS 1.2 y versiones anteriores, como el usado en Mozilla Firefox, Google Chrome, y otros productos, puede hacer cifrados TLS de datos comprimidos sin ofuscar de forma adecuada la longitud de los datos no cifrado, lo que permte a atacantes man-in-the-middle obtener cabeceras HTTP en texto plano observando las diferencias de longitud durante una serie de previsiones en la cual una cadena en una petici\u00f3n HTTP potencialmente coincide con una cadena desconocida en una cabecera HTPP, tambi\u00e9n conocido como ataque \"CRIME\"."
          }
        ],
        "id": "CVE-2012-4929",
        "lastModified": "2026-04-29T01:13:23.040",
        "metrics": {
          "cvssMetricV2": [
            {
              "acInsufInfo": false,
              "baseSeverity": "LOW",
              "cvssData": {
                "accessComplexity": "HIGH",
                "accessVector": "NETWORK",
                "authentication": "NONE",
                "availabilityImpact": "NONE",
                "baseScore": 2.6,
                "confidentialityImpact": "PARTIAL",
                "integrityImpact": "NONE",
                "vectorString": "AV:N/AC:H/Au:N/C:P/I:N/A:N",
                "version": "2.0"
              },
              "exploitabilityScore": 4.9,
              "impactScore": 2.9,
              "obtainAllPrivilege": false,
              "obtainOtherPrivilege": false,
              "obtainUserPrivilege": false,
              "source": "nvd@nist.gov",
              "type": "Primary",
              "userInteractionRequired": false
            }
          ]
        },
        "published": "2012-09-15T18:55:03.187",
        "references": [
          {
            "source": "cve@mitre.org",
            "url": "http://arstechnica.com/security/2012/09/crime-hijacks-https-sessions/"
          },
          {
            "source": "cve@mitre.org",
            "url": "http://code.google.com/p/chromium/issues/detail?id=139744"
          },
          {
            "source": "cve@mitre.org",
            "url": "http://isecpartners.com/blog/2012/9/14/details-on-the-crime-attack.html"
          },
          {
            "source": "cve@mitre.org",
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          {
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            "url": "http://jvndb.jvn.jp/en/contents/2016/JVNDB-2016-000129.html"
          },
          {
            "source": "cve@mitre.org",
            "url": "http://lists.apple.com/archives/security-announce/2013/Jun/msg00000.html"
          },
          {
            "source": "cve@mitre.org",
            "url": "http://lists.fedoraproject.org/pipermail/package-announce/2013-April/101366.html"
          },
          {
            "source": "cve@mitre.org",
            "url": "http://lists.opensuse.org/opensuse-updates/2012-10/msg00096.html"
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          {
            "source": "cve@mitre.org",
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          {
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            "url": "http://rhn.redhat.com/errata/RHSA-2013-0587.html"
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            "url": "http://support.apple.com/kb/HT5784"
          },
          {
            "source": "cve@mitre.org",
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          {
            "source": "cve@mitre.org",
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            "url": "http://www.debian.org/security/2012/dsa-2579"
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          }
        ],
        "sourceIdentifier": "cve@mitre.org",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-310"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-08-04T22:05:56+00:00",
      "cve": "CVE-2012-4929",
      "id": "CVE-2012-4929",
      "initial_release_date": "2012-09-13T00:00:00+00:00",
      "product_status:fixed": "107",
      "product_status:known_affected": "9",
      "product_status:known_not_affected": "13",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "SSL/TLS CRIME attack against HTTPS",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2012/cve-2012-4929.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-10-17T02:39:56Z",
      "cve": "CVE-2012-4929",
      "id": "CVE-2012-4929",
      "initial_release_date": "2023-02-15T05:44:23Z",
      "product_status:known_affected": "0",
      "product_status:known_not_affected": "288",
      "product_status:recommended": "1189",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2012-4929",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/2023/cve-2012-4929.json",
      "version": "35"
    }
  }
}



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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

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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.