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Debian DSA-2440-1 : libtasn1-3 - missing bounds check

medium Nessus Plugin ID 58459

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Synopsis

The remote Debian host is missing a security-related update.

Description

Matthew Hall discovered that many callers of the asn1_get_length_der function did not check the result against the overall buffer length before processing it further. This could result in out-of-bounds memory accesses and application crashes. Applications using GNUTLS are exposed to this issue.

Solution

Upgrade the libtasn1-3 packages.

For the stable distribution (squeeze), this problem has been fixed in version 2.7-1+squeeze+1.

See Also

https://packages.debian.org/source/squeeze/libtasn1-3

https://www.debian.org/security/2012/dsa-2440

Plugin Details

Severity: Medium

ID: 58459

File Name: debian_DSA-2440.nasl

Version: 1.10

Type: local

Agent: unix

Published: 3/26/2012

Updated: 1/11/2021

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

Vulnerability Information

CPE: cpe:/o:debian:debian_linux:6.0, p-cpe:/a:debian:debian_linux:libtasn1-3

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Ease: No known exploits are available

Patch Publication Date: 3/24/2012

Reference Information

CVE: CVE-2012-1569

BID: 52668

DSA: 2440