Debian Security Advisory

DSA-2546-1 freeradius -- stack-based buffer overflows

Date Reported:
11 Sep 2012
Affected Packages:
Security database references:
In the Debian bugtracking system: Bug 687175.
In Mitre's CVE dictionary: CVE-2012-3547.
More information:

Timo Warns discovered that the EAP-TLS handling of FreeRADIUS, a high-performance and highly configurable RADIUS server, is not properly performing length checks on user-supplied input before copying to a local stack buffer. As a result, an unauthenticated attacker can exploit this flaw to crash the daemon or execute arbitrary code via crafted certificates.

For the stable distribution (squeeze), this problem has been fixed in version 2.1.10+dfsg-2+squeeze1.

For the testing distribution (wheezy), this problem will be fixed soon.

For the unstable distribution (sid), this problem has been fixed in version 2.1.12+dfsg-1.1.

We recommend that you upgrade your freeradius packages.