CVE-2013-1624: Bouncycastle Bc-Java

Medium severity, CVSS 4.0. EPSS: 3% chance of exploitation in the next 30 days.

The TLS implementation in the Bouncy Castle Java library before 1.48 and C# library before 1.8 does not properly consider timing side-channel attacks on a noncompliant MAC check operation during the processing of malformed CBC padding, which allows remote attackers to conduct distinguishing attacks and plaintext-recovery attacks via statistical analysis of timing data for crafted packets, a related issue to CVE-2013-0169.

Affected products

• Bouncycastle Bc-Java: version 1.01 only; version 1.02 only; version 1.03 only; version 1.04 only; version 1.05 only; version 1.06 only; …
• Bouncycastle Legion-Of-The-Bouncy-Castle-C#-Cryptography-API: version 0.0 only; version 1.0 only; version 1.1 only; version 1.2 only; version 1.3 only; version 1.4 only; …

Published 2013-02-08. Last modified 2026-06-16.