Description
GnuPG 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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
n/a n/a
n/aaffected
References
- http://thread.gmane.org/gmane.comp.encryption.gpg.devel/17712/focus=18138 ↗
- http://lists.opensuse.org/opensuse-updates/2013-10/msg00006.html ↗
- http://ubuntu.com/usn/usn-1987-1 ↗
- http://www.debian.org/security/2013/dsa-2773 ↗
- http://www.openwall.com/lists/oss-security/2013/09/13/4 ↗
- http://rhn.redhat.com/errata/RHSA-2013-1459.html ↗
- http://lists.opensuse.org/opensuse-updates/2013-10/msg00003.html ↗
- http://www.debian.org/security/2013/dsa-2774 ↗
- https://bugzilla.redhat.com/show_bug.cgi?id=1010137 ↗