Debian Security Advisory

DSA-2076-1 gnupg2 -- use-after-free

Date Reported:
27 Jul 2010
Affected Packages:
gnupg2
Vulnerable:
Yes
Security database references:
In the Debian bugtracking system: Bug 590122.
In Mitre's CVE dictionary: CVE-2010-2547.
More information:

It was discovered that GnuPG 2 uses a freed pointer when verifying a signature or importing a certificate with many Subject Alternate Names, potentially leading to arbitrary code execution.

For the stable distribution (lenny), this problem has been fixed in version 2.0.9-3.1+lenny1.

For the unstable distribution (sid), this problem has been fixed in version 2.0.14-2.

GnuPG 1 (in the gnupg package) is not affected by this problem.

We recommend that you upgrade your gnupg2 packages.

Fixed in:

Debian GNU/Linux 5.0 (lenny)

Source:
http://security.debian.org/pool/updates/main/g/gnupg2/gnupg2_2.0.9-3.1+lenny1.dsc
http://security.debian.org/pool/updates/main/g/gnupg2/gnupg2_2.0.9-3.1+lenny1.diff.gz
http://security.debian.org/pool/updates/main/g/gnupg2/gnupg2_2.0.9.orig.tar.gz
Alpha:
http://security.debian.org/pool/updates/main/g/gnupg2/gpgsm_2.0.9-3.1+lenny1_alpha.deb
http://security.debian.org/pool/updates/main/g/gnupg2/gnupg-agent_2.0.9-3.1+lenny1_alpha.deb
http://security.debian.org/pool/updates/main/g/gnupg2/gnupg2_2.0.9-3.1+lenny1_alpha.deb
AMD64:
http://security.debian.org/pool/updates/main/g/gnupg2/gnupg2_2.0.9-3.1+lenny1_amd64.deb
http://security.debian.org/pool/updates/main/g/gnupg2/gnupg-agent_2.0.9-3.1+lenny1_amd64.deb
http://security.debian.org/pool/updates/main/g/gnupg2/gpgsm_2.0.9-3.1+lenny1_amd64.deb
ARM:
http://security.debian.org/pool/updates/main/g/gnupg2/gpgsm_2.0.9-3.1+lenny1_arm.deb
http://security.debian.org/pool/updates/main/g/gnupg2/gnupg-agent_2.0.9-3.1+lenny1_arm.deb
http://security.debian.org/pool/updates/main/g/gnupg2/gnupg2_2.0.9-3.1+lenny1_arm.deb
ARM EABI:
http://security.debian.org/pool/updates/main/g/gnupg2/gpgsm_2.0.9-3.1+lenny1_armel.deb
http://security.debian.org/pool/updates/main/g/gnupg2/gnupg2_2.0.9-3.1+lenny1_armel.deb
http://security.debian.org/pool/updates/main/g/gnupg2/gnupg-agent_2.0.9-3.1+lenny1_armel.deb
HP Precision:
http://security.debian.org/pool/updates/main/g/gnupg2/gnupg-agent_2.0.9-3.1+lenny1_hppa.deb
http://security.debian.org/pool/updates/main/g/gnupg2/gnupg2_2.0.9-3.1+lenny1_hppa.deb
http://security.debian.org/pool/updates/main/g/gnupg2/gpgsm_2.0.9-3.1+lenny1_hppa.deb
Intel IA-32:
http://security.debian.org/pool/updates/main/g/gnupg2/gpgsm_2.0.9-3.1+lenny1_i386.deb
http://security.debian.org/pool/updates/main/g/gnupg2/gnupg2_2.0.9-3.1+lenny1_i386.deb
http://security.debian.org/pool/updates/main/g/gnupg2/gnupg-agent_2.0.9-3.1+lenny1_i386.deb
Intel IA-64:
http://security.debian.org/pool/updates/main/g/gnupg2/gnupg2_2.0.9-3.1+lenny1_ia64.deb
http://security.debian.org/pool/updates/main/g/gnupg2/gpgsm_2.0.9-3.1+lenny1_ia64.deb
http://security.debian.org/pool/updates/main/g/gnupg2/gnupg-agent_2.0.9-3.1+lenny1_ia64.deb
Big-endian MIPS:
http://security.debian.org/pool/updates/main/g/gnupg2/gnupg-agent_2.0.9-3.1+lenny1_mips.deb
http://security.debian.org/pool/updates/main/g/gnupg2/gnupg2_2.0.9-3.1+lenny1_mips.deb
http://security.debian.org/pool/updates/main/g/gnupg2/gpgsm_2.0.9-3.1+lenny1_mips.deb
Little-endian MIPS:
http://security.debian.org/pool/updates/main/g/gnupg2/gnupg2_2.0.9-3.1+lenny1_mipsel.deb
http://security.debian.org/pool/updates/main/g/gnupg2/gpgsm_2.0.9-3.1+lenny1_mipsel.deb
http://security.debian.org/pool/updates/main/g/gnupg2/gnupg-agent_2.0.9-3.1+lenny1_mipsel.deb
PowerPC:
http://security.debian.org/pool/updates/main/g/gnupg2/gnupg2_2.0.9-3.1+lenny1_powerpc.deb
http://security.debian.org/pool/updates/main/g/gnupg2/gnupg-agent_2.0.9-3.1+lenny1_powerpc.deb
http://security.debian.org/pool/updates/main/g/gnupg2/gpgsm_2.0.9-3.1+lenny1_powerpc.deb
IBM S/390:
http://security.debian.org/pool/updates/main/g/gnupg2/gnupg-agent_2.0.9-3.1+lenny1_s390.deb
http://security.debian.org/pool/updates/main/g/gnupg2/gnupg2_2.0.9-3.1+lenny1_s390.deb
http://security.debian.org/pool/updates/main/g/gnupg2/gpgsm_2.0.9-3.1+lenny1_s390.deb
Sun Sparc:
http://security.debian.org/pool/updates/main/g/gnupg2/gnupg-agent_2.0.9-3.1+lenny1_sparc.deb
http://security.debian.org/pool/updates/main/g/gnupg2/gnupg2_2.0.9-3.1+lenny1_sparc.deb
http://security.debian.org/pool/updates/main/g/gnupg2/gpgsm_2.0.9-3.1+lenny1_sparc.deb

MD5 checksums of the listed files are available in the original advisory.