Security Information / 2013 / Security Information -- DSA-2730-1 gnupg

Debian Security Advisory

DSA-2730-1 gnupg -- information leak

Date Reported:

29 Jul 2013

Affected Packages:

gnupg

Vulnerable:

Yes

Security database references:

In the Debian bugtracking system: Bug 717880.
In Mitre's CVE dictionary: CVE-2013-4242.

More information:

Yarom and Falkner discovered that RSA secret keys could be leaked via a side channel attack, where a malicious local user could obtain private key information from another user on the system.

This update fixes this issue for the 1.4 series of GnuPG. GnuPG 2.x is affected through its use of the libgcrypt11 library, a fix for which will be published in DSA 2731.

For the oldstable distribution (squeeze), this problem has been fixed in version 1.4.10-4+squeeze2.

For the stable distribution (wheezy), this problem has been fixed in version 1.4.12-7+deb7u1.

For the unstable distribution (sid), this problem has been fixed in version 1.4.14-1.

We recommend that you upgrade your gnupg packages.