– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –
Gentoo Linux Security Advisory GLSA 201710-11
– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –
https://security.gentoo.org/
– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –

Severity: Normal
Title: GNU Libtasn1: Multiple vulnerabilities
Date: October 13, 2017
Bugs: #619686, #627014
ID: 201710-11

– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –

Synopsis
========

Multiple vulnerabilities have been found in GNU Libtasn1, the worst of
which may allow remote attackers to execute arbitrary code.

Background
==========

A library that provides Abstract Syntax Notation One (ASN.1, as
specified by the X.680 ITU-T recommendation) parsing and structures
management, and Distinguished Encoding Rules (DER, as per X.690)
encoding and decoding functions.

Affected packages
=================

——————————————————————-
Package / Vulnerable / Unaffected
——————————————————————-
1 dev-libs/libtasn1 < 4.12-r1 >= 4.12-r1

Description
===========

Multiple vulnerabilities have been discovered in GNU Libtasn1. Please
review the referenced CVE identifiers for details.

Impact
======

A remote attacker could possibly execute arbitrary code with the
privileges of the process, cause a Denial of Service condition, or have
other unspecified impacts.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All GNU Libtasn1 users should upgrade to the latest version:

# emerge –sync
# emerge –ask –oneshot –verbose “>=dev-libs/libtasn1-4.12-r1”

Packages which depend on this library may need to be recompiled. Tools
such as revdep-rebuild may assist in identifying some of these
packages.

References
==========

[ 1 ] CVE-2017-10790
https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-10790
[ 2 ] CVE-2017-6891
https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-6891

Availability
============

This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

https://security.gentoo.org/glsa/201710-11

Concerns?
=========

Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users’ machines is of utmost
importance to us. Any security concerns should be addressed to
security@gentoo.org or alternatively, you may file a bug at
https://bugs.gentoo.org.

License
=======

Copyright 2017 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).

The contents of this document are licensed under the
Creative Commons – Attribution / Share Alike license.

http://creativecommons.org/licenses/by-sa/2.5—–BEGIN PGP SIGNATURE—–

iQEzBAABCAAdFiEEiDRK3jyVBE/RkymqpRQw84X1dt0FAlnhQp4ACgkQpRQw84X1
dt2OIggAhoDrxfn8IgA6d+/rLddcBV+HGON1e2dW13i0kV+Fc+BLoyAzPPKkpceE
RK4X3O2bsQ5duU8M56ehMYB7iQXYCp6jgurDXgLfZvO8X0uVD3a8PIghmsp/wYVv
OGZONnyPSBD522BMvLH2mBy9iHB7tEHLPXqNO9VAamDF72QRwZN3jHdOin2FVq51
NNFKTc8qsKGgvbSeMS8DYmsoGytb6m1xH/k4dBwePiwYXByEAXTCDovmFMuadiZg
9Lx2Vhmg9FFTwJCnOTHwysRr5tlSERn8HBx52s2cVAdT3UcbseVZpzwCW33mQu3n
U10dOi6Yta3YRb+9bYIhGdASw58ZiA==
=9M5s
—–END PGP SIGNATURE—–