The GNU Privacy Guard, GnuPG, is a free replacement for the PGP suite of cryptographic software.
GnuPG does not properly handle a specially crated compressed packet resulting in an infinite loop.
A context-dependent attacker can cause a Denial of Service.
There is no known workaround at this time.
All GnuPG 2.0 users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=app-crypt/gnupg-2.0.24"
All GnuPG 1.4 users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=app-crypt/gnupg-1.4.17"