CVE-2013-4351

NameCVE-2013-4351
DescriptionGnuPG 1.4.x, 2.0.x, and 2.1.x treats a key flags subpacket with all bits cleared (no usage permitted) as if it has all bits set (all usage permitted), which might allow remote attackers to bypass intended cryptographic protection mechanisms by leveraging the subkey.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
ReferencesDSA-2773-1, DSA-2774-1
NVD severitymedium
Debian Bugs722722, 722724

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
gnupg (PTS)jessie (security), jessie1.4.18-7+deb8u5fixed
gnupg2 (PTS)jessie (security), jessie2.0.26-6+deb8u2fixed
stretch2.1.18-8~deb9u4fixed
stretch (security)2.1.18-8~deb9u2fixed
buster2.2.12-1+deb10u1fixed
bullseye, sid2.2.17-3fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
gnupgsource(unstable)1.4.15-1low722722
gnupgsourcesqueeze1.4.10-4+squeeze3DSA-2773-1
gnupgsourcewheezy1.4.12-7+deb7u2DSA-2773-1
gnupg2source(unstable)2.0.22-1low722724
gnupg2sourcesqueeze2.0.14-2+squeeze2DSA-2774-1
gnupg2sourcewheezy2.0.19-2+deb7u1DSA-2774-1

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