GLSA-201209-12 : Libtasn1: Denial of Service

medium Nessus Plugin ID 62302
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Synopsis

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

Description

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.

Solution

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

https://security.gentoo.org/glsa/201209-12

Plugin Details

Severity: Medium

ID: 62302

File Name: gentoo_GLSA-201209-12.nasl

Version: 1.9

Type: local

Published: 9/26/2012

Updated: 1/6/2021

Dependencies: ssh_get_info.nasl

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

Temporal Vector: E:U/RL:OF/RC:C

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 Ease: No known exploits are available

Patch Publication Date: 9/25/2012

Reference Information

CVE: CVE-2012-1569

BID: 52668

GLSA: 201209-12