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openssl — security advisory

Type: advisorySources: OSVAdvisory ID: DEBIAN-CVE-2012-2333

Integer underflow in OpenSSL before 0.9.8x, 1.0.0 before 1.0.0j, and 1.0.1 before 1.0.1c, when TLS 1.1, TLS 1.2, or DTLS is used with CBC encryption, allows remote attackers to cause a denial of service (buffer over-read) or possibly have unspecified other impact via a crafted TLS packet that is not properly handled during a certain explicit IV calculation.

Products
openssl
Affected versions
Not specified
Fixed versions
1.0.1c-1
CVEs
CVE-2012-2333
Confirmed fixed CVEs
Not specified
Updated in this feed
31 Oct 2026, 23:33 UTC · Revision 1

Source evidence

DEBIAN-CVE-2012-2333

core-osv · Original source

Published 14 May 2012, 22:55 UTC

Integer underflow in OpenSSL before 0.9.8x, 1.0.0 before 1.0.0j, and 1.0.1 before 1.0.1c, when TLS 1.1, TLS 1.2, or DTLS is used with CBC encryption, allows remote attackers to cause a denial of service (buffer over-read) or possibly have unspecified other impact via a crafted TLS packet that is not properly handled during a certain explicit IV calculation.

osv:DEBIAN-CVE-2012-2333

openssl

Fixed versions: 1.0.1c-1

openssl

Fixed versions: 1.0.1c-1

openssl

Fixed versions: 1.0.1c-1

Complete source record
{
  "id": "e3b4f825cd205e4a850b6d18b6d3d06791cd34b7e4094ab13c8c0aae1ad55b90",
  "url": "https://osv.dev/vulnerability/DEBIAN-CVE-2012-2333",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "DEBIAN-CVE-2012-2333",
    "summary": "Integer underflow in OpenSSL before 0.9.8x, 1.0.0 before 1.0.0j, and 1.0.1 before 1.0.1c, when TLS 1.1, TLS 1.2, or DTLS is used with CBC encryption, allows remote attackers to cause a denial of service (buffer over-read) or possibly have unspecified other impact via a crafted TLS packet that is not properly handled during a certain explicit IV calculation.",
    "evidence": "osv:DEBIAN-CVE-2012-2333",
    "products": [
      {
        "name": {
          "value": "openssl",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "1.0.1c-1",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "openssl",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "1.0.1c-1",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "openssl",
          "evidence": "/affected/2/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "1.0.1c-1",
            "evidence": "/affected/2/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "DEBIAN-CVE-2012-2333",
      "aliases": [
        "DEBIAN-CVE-2012-2333"
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1.0.1c-1"
                }
              ]
            }
          ],
          "package": {
            "name": "openssl",
            "purl": "pkg:deb/debian/openssl?arch=source&distro=bookworm",
            "ecosystem": "Debian:12"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2012-2333.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1.0.1c-1"
                }
              ]
            }
          ],
          "package": {
            "name": "openssl",
            "purl": "pkg:deb/debian/openssl?arch=source&distro=trixie",
            "ecosystem": "Debian:13"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2012-2333.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1.0.1c-1"
                }
              ]
            }
          ],
          "package": {
            "name": "openssl",
            "purl": "pkg:deb/debian/openssl?arch=source&distro=forky",
            "ecosystem": "Debian:14"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2012-2333.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        }
      ],
      "modified": "2026-10-23T17:47:46.813997759Z",
      "provider": "osv",
      "upstream": [
        "CVE-2012-2333"
      ],
      "references": [
        "https://security-tracker.debian.org/tracker/CVE-2012-2333"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2012-2333",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 418903,
  "published_at": "2012-05-14T22:55:03.07+00:00"
}