(https://nvd.nist.gov/vuln/detail/CVE-2019-13050): Interaction between the sks-keyserver code through 1.2.0 of the SKS keyserver network, and GnuPG through 2.2.16, makes it risky to have a GnuPG keyserver configuration line referring to a host on the SKS keyserver network. Retrieving data from this network may cause a persistent denial of service, because of a Certificate Spamming Attack. Further Reference: https://gist.github.com/rjhansen/67ab921ffb4084c865b3618d6955275f Gentoo Security Padawan (domhnall)
GnuPG 2.2.17 has been released in order to address this issue: https://lists.gnupg.org/pipermail/gnupg-announce/2019q3/000439.html
The bug has been referenced in the following commit(s): https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=6b9966122c613eafb7e8917b37da3d5c1fbb022a commit 6b9966122c613eafb7e8917b37da3d5c1fbb022a Author: Kristian Fiskerstrand <k_f@gentoo.org> AuthorDate: 2019-07-10 08:36:17 +0000 Commit: Kristian Fiskerstrand <k_f@gentoo.org> CommitDate: 2019-07-10 08:37:28 +0000 app-crypt/gnupg: New upstream version 2.2.17 Bug: https://bugs.gentoo.org/689392 Signed-off-by: Kristian Fiskerstrand <k_f@gentoo.org> Package-Manager: Portage-2.3.66, Repoman-2.3.11 app-crypt/gnupg/Manifest | 1 + app-crypt/gnupg/gnupg-2.2.17.ebuild | 153 ++++++++++++++++++++++++++++++++++++ 2 files changed, 154 insertions(+)
Arches, please test and mark stable; app-crypt/gnupg-2.2.17
amd64 stable
s390 stable
x86 stable
ppc stable
ppc64 stable
ia64 stable
sparc stable
alpha stable
hppa stable
arm64 stable
arm stable
@maintainer(s), please drop vulnerable.
The bug has been referenced in the following commit(s): https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=6d79a7f81cec439f3dbbb10bcc6478f4ebb01061 commit 6d79a7f81cec439f3dbbb10bcc6478f4ebb01061 Author: Kristian Fiskerstrand <k_f@gentoo.org> AuthorDate: 2019-08-14 13:30:02 +0000 Commit: Kristian Fiskerstrand <k_f@gentoo.org> CommitDate: 2019-08-14 13:30:02 +0000 app-crypt/gnupg: Remove old versions (security cleanup) Bug: https://bugs.gentoo.org/689392 Signed-off-by: Kristian Fiskerstrand <k_f@gentoo.org> Package-Manager: Portage-2.3.66, Repoman-2.3.11 app-crypt/gnupg/Manifest | 6 -- app-crypt/gnupg/gnupg-1.4.21.ebuild | 114 ------------------------ app-crypt/gnupg/gnupg-2.2.10.ebuild | 134 ----------------------------- app-crypt/gnupg/gnupg-2.2.12.ebuild | 136 ----------------------------- app-crypt/gnupg/gnupg-2.2.14.ebuild | 136 ----------------------------- app-crypt/gnupg/gnupg-2.2.15-r1.ebuild | 153 --------------------------------- app-crypt/gnupg/gnupg-2.2.15.ebuild | 137 ----------------------------- app-crypt/gnupg/gnupg-2.2.16-r1.ebuild | 153 --------------------------------- app-crypt/gnupg/gnupg-2.2.16.ebuild | 153 --------------------------------- app-crypt/gnupg/metadata.xml | 3 - 10 files changed, 1125 deletions(-)
Cleanup done. Closing.