Two vulnerabilities were discovered in GnuPG, the GNU privacy guard, a free PGP replacement. The Common Vulnerabilities and Exposures project identifies the following problems: CVE-2013-4351When a key or subkey had its key flags subpacket set to all bits off, GnuPG currently would treat the key as having all bits set. That is, where the owner wanted to indicate no use permitted, GnuPG would interpret it as all use permitted. Such no use permitted keys are rare and only used in very special circumstances. CVE-2013-4402 Infinite recursion in the compressed packet parser was possible with crafted input data, which may be used to cause a denial of service.

For the oldstable distribution (squeeze), these problems have been fixed in version 1.4.10-4+squeeze3. For the stable distribution (wheezy), these problems have been fixed in version 1.4.12-7+deb7u2. For the unstable distribution (sid), these problems have been fixed in version 1.4.15-1. We recommend that you upgrade your gnupg packages.

GnuPG is GNU's tool for secure communication and data storage. It can be used to encrypt data and to create digital signatures. It includes an advanced key management facility and is compliant with the proposed OpenPGP Internet standard as described in RFC2440.

gnupg on Debian Linux

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

• http://www.debian.org/security/2013/dsa-2773.html

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Updated on 2015-03-25