CVE-2013-4623 (GCVE-0-2013-4623)

Vulnerability from cvelistv5 – Published: 2013-09-30 20:00 – Updated: 2024-08-06 16:52
VLAI
Summary
The x509parse_crt function in x509.h in PolarSSL 1.1.x before 1.1.7 and 1.2.x before 1.2.8 does not properly parse certificate messages during the SSL/TLS handshake, which allows remote attackers to cause a denial of service (infinite loop and CPU consumption) via a certificate message that contains a PEM encoded certificate.
Severity
No CVSS data available.
CWE
  • n/a
Assigner
References
Date Public
2013-06-21 00:00
Show details on NVD website
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                    "criteria": "cpe:2.3:a:polarssl:polarssl:1.2.4:*:*:*:*:*:*:*",
                    "matchCriteriaId": "48FAB18E-F1C9-46B2-985E-28AC2736DB3F",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:polarssl:polarssl:1.2.5:*:*:*:*:*:*:*",
                    "matchCriteriaId": "7C453569-3736-4FC3-87FE-8282A1572CA3",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:polarssl:polarssl:1.2.6:*:*:*:*:*:*:*",
                    "matchCriteriaId": "E86CC3C2-C0D0-420A-97FA-1862B9CF2CE0",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:polarssl:polarssl:1.2.7:*:*:*:*:*:*:*",
                    "matchCriteriaId": "67CE5D3D-FE2C-403E-9A90-43CB04A96CD1",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "The x509parse_crt function in x509.h in PolarSSL 1.1.x before 1.1.7 and 1.2.x before 1.2.8 does not properly parse certificate messages during the SSL/TLS handshake, which allows remote attackers to cause a denial of service (infinite loop and CPU consumption) via a certificate message that contains a PEM encoded certificate."
          },
          {
            "lang": "es",
            "value": "La funci\u00f3n x509parse_crt en x509.h de PolarSSL 1.1.x (anteriores a 1.1.7) y 1.2.x (anteriores a 1.2.8) no procesa apropiadamente los mensajes de certificado durante un handshake SSL/TLS, lo que permite a atacantes remotos causar una denegaci\u00f3n de servicio (bucle infinito y consumo de CPU) a trav\u00e9s de un mensaje de certificado que contiene un certificado codificado en PEM."
          }
        ],
        "id": "CVE-2013-4623",
        "lastModified": "2026-04-29T01:13:23.040",
        "metrics": {
          "cvssMetricV2": [
            {
              "acInsufInfo": false,
              "baseSeverity": "MEDIUM",
              "cvssData": {
                "accessComplexity": "MEDIUM",
                "accessVector": "NETWORK",
                "authentication": "NONE",
                "availabilityImpact": "PARTIAL",
                "baseScore": 4.3,
                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:P",
                "version": "2.0"
              },
              "exploitabilityScore": 8.6,
              "impactScore": 2.9,
              "obtainAllPrivilege": false,
              "obtainOtherPrivilege": false,
              "obtainUserPrivilege": false,
              "source": "nvd@nist.gov",
              "type": "Primary",
              "userInteractionRequired": false
            }
          ]
        },
        "published": "2013-09-30T22:55:04.930",
        "references": [
          {
            "source": "cve@mitre.org",
            "url": "http://lists.fedoraproject.org/pipermail/package-announce/2013-September/115922.html"
          },
          {
            "source": "cve@mitre.org",
            "url": "http://lists.fedoraproject.org/pipermail/package-announce/2013-September/115927.html"
          },
          {
            "source": "cve@mitre.org",
            "url": "http://lists.fedoraproject.org/pipermail/package-announce/2013-September/116351.html"
          },
          {
            "source": "cve@mitre.org",
            "url": "http://www.debian.org/security/2013/dsa-2782"
          },
          {
            "source": "cve@mitre.org",
            "url": "http://www.securityfocus.com/bid/61764"
          },
          {
            "source": "cve@mitre.org",
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=997767"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Exploit",
              "Patch"
            ],
            "url": "https://github.com/polarssl/polarssl/commit/1922a4e6aade7b1d685af19d4d9339ddb5c02859"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Patch",
              "Vendor Advisory"
            ],
            "url": "https://polarssl.org/tech-updates/security-advisories/polarssl-security-advisory-2013-03"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://lists.fedoraproject.org/pipermail/package-announce/2013-September/115922.html"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://lists.fedoraproject.org/pipermail/package-announce/2013-September/115927.html"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://lists.fedoraproject.org/pipermail/package-announce/2013-September/116351.html"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://www.debian.org/security/2013/dsa-2782"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://www.securityfocus.com/bid/61764"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=997767"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Exploit",
              "Patch"
            ],
            "url": "https://github.com/polarssl/polarssl/commit/1922a4e6aade7b1d685af19d4d9339ddb5c02859"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Patch",
              "Vendor Advisory"
            ],
            "url": "https://polarssl.org/tech-updates/security-advisories/polarssl-security-advisory-2013-03"
          }
        ],
        "sourceIdentifier": "cve@mitre.org",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-20"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "current_release_date": "2025-11-21T12:39:02+00:00",
      "cve": "CVE-2013-4623",
      "id": "CVE-2013-4623",
      "initial_release_date": "2013-06-06T00:00:00+00:00",
      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "polarssl: denial of service (infinite loop) when parsing certain PEM encoded certificates",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2013/cve-2013-4623.json",
      "version": "3"
    }
  }
}



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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.


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.