GLSA-201209-12 : Libtasn1: Denial of Service

Medium Nessus Plugin ID 62302


The remote Gentoo host is missing one or more security-related patches.


The remote host is affected by the vulnerability described in GLSA-201209-12 (Libtasn1: Denial of Service)

Libtasn1 does not properly handle length fields when performing DER decoding.
Impact :

A remote attacker could entice a user to open a specially crafted DER-encoded object in an application linked against Libtasn1, possibly resulting in Denial of Service.
Workaround :

There is no known workaround at this time.


All Libtasn1 users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose '>=dev-libs/libtasn1-2.12' Packages which depend on this library may need to be recompiled. Tools such as revdep-rebuild may assist in identifying some of these packages.

See Also

Plugin Details

Severity: Medium

ID: 62302

File Name: gentoo_GLSA-201209-12.nasl

Version: $Revision: 1.6 $

Type: local

Published: 2012/09/26

Modified: 2017/08/14

Dependencies: 12634

Risk Information

Risk Factor: Medium


Base Score: 5

Temporal Score: 4.1

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P

Temporal Vector: CVSS2#E:F/RL:OF/RC:ND

Vulnerability Information

CPE: p-cpe:/a:gentoo:linux:libtasn1, cpe:/o:gentoo:linux

Required KB Items: Host/local_checks_enabled, Host/Gentoo/release, Host/Gentoo/qpkg-list

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2012/09/25

Reference Information

CVE: CVE-2012-1569

BID: 52668

OSVDB: 80258

GLSA: 201209-12