OpenSSL Security Advisory [26 Sep 2016]
This security update addresses issues that were caused by patches
included in our previous security update, released on 22nd September
2016. Given the Critical severity of one of these flaws we have
chosen to release this advisory immediately to prevent upgrades to the
affected version, rather than delaying in order to provide our usual
Fix Use After Free for large message sizes (CVE-2016-6309)
This issue only affects OpenSSL 1.1.0a, released on 22nd September 2016.
The patch applied to address CVE-2016-6307 resulted in an issue where if a
message larger than approx 16k is received then the underlying buffer to store
the incoming message is reallocated and moved. Unfortunately a dangling pointer
to the old location is left which results in an attempt to write to the
previously freed location. This is likely to result in a crash, however it
could potentially lead to execution of arbitrary code.
OpenSSL 1.1.0 users should upgrade to 1.1.0b
This issue was reported to OpenSSL on 23rd September 2016 by Robert
ÅwiÄcki (Google Security Team), and was found using honggfuzz. The fix
was developed by Matt Caswell of the OpenSSL development team.
Missing CRL sanity check (CVE-2016-7052)
This issue only affects OpenSSL 1.0.2i, released on 22nd September 2016.
A bug fix which included a CRL sanity check was added to OpenSSL 1.1.0
but was omitted from OpenSSL 1.0.2i. As a result any attempt to use
CRLs in OpenSSL 1.0.2i will crash with a null pointer exception.
OpenSSL 1.0.2i users should upgrade to 1.0.2j
The issue was reported to OpenSSL on 22nd September 2016 by Bruce Stephens and
Thomas Jakobi. The fix was developed by Matt Caswell of the OpenSSL development
URL for this Security Advisory:
Note: the online version of the advisory may be updated with additional details
For details of OpenSSL severity classifications please see:
Author: Lars Wendler <email@example.com>
Date: Mon Sep 26 13:44:41 2016
dev-libs/openssl: Sec bump to versions 1.0.2j and 1.1.0b (bug #595186).
Signed-off-by: Lars Wendler <firstname.lastname@example.org>
Arches please test and mark stable =dev-libs/openssl-1.0.2j with target KEYWORDS:
alpha amd64 arm ~arm64 hppa ia64 ~m68k ~mips ppc ppc64 ~s390 ~sh sparc x86 ~amd64-fbsd ~sparc-fbsd ~x86-fbsd ~arm-linux ~x86-linux
Stable for HPPA PPC64.
Stable on alpha.
Maintainer(s), please cleanup.
Cleanup already done: https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=246f6b0590667adffa8967d9ba41bc993119a553
This issue was resolved and addressed in
GLSA 201612-16 at https://security.gentoo.org/glsa/201612-16
by GLSA coordinator Aaron Bauman (b-man).