Debian Security Advisory DSA 2981-1 (polarssl - Security Update) Network Vulnerability

Summary

A flaw was discovered in PolarSSL, a lightweight crypto and SSL/TLS library, which can be exploited by a remote unauthenticated attacker to mount a denial of service against PolarSSL servers that offer GCM ciphersuites. Potentially clients are affected too if a malicious server decides to execute the denial of service attack against its clients.

Solution

For the stable distribution (wheezy), this problem has been fixed in version 1.2.9-1~deb7u3. For the testing distribution (jessie), this problem has been fixed in version 1.3.7-2.1. For the unstable distribution (sid), this problem has been fixed in version 1.3.7-2.1. We recommend that you upgrade your polarssl packages.

Insight

PolarSSL is a fork of the abandonned project XySSL. It is a lean crypto library providing SSL and TLS support in your programs.

Affected

polarssl on Debian Linux

Detection

This check tests the installed software version using the apt package manager.

References