CVE-2012-2333: OpenSSL

Medium severity, CVSS 6.8. EPSS: 27.9% chance of exploitation in the next 30 days.

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.

Affected products

• OpenSSL OpenSSL: up to and including 0.9.8w; version 0.9.1c only; version 0.9.2b only; version 0.9.3 only; version 0.9.3a only; version 0.9.4 only; …
• Red Hat OpenSSL: version 0.9.6-15 only; version 0.9.6b-3 only; version 0.9.7a-2 only

Published 2012-05-14. Last modified 2026-06-16.