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FreeBSD : libtasn1 -- ASN.1 length decoding vulnerability (2e7e9072-73a0-11e1-a883-001cc0a36e12)

medium Nessus Plugin ID 58422

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Synopsis

The remote FreeBSD host is missing one or more security-related updates.

Description

Mu Dynamics, Inc. reports :

Various functions using the ASN.1 length decoding logic in Libtasn1 were incorrectly assuming that the return value from asn1_get_length_der is always less than the length of the enclosing ASN.1 structure, which is only true for valid structures and not for intentionally corrupt or otherwise buggy structures.

Solution

Update the affected packages.

See Also

http://www.nessus.org/u?db72b6bd

Plugin Details

Severity: Medium

ID: 58422

File Name: freebsd_pkg_2e7e907273a011e1a883001cc0a36e12.nasl

Version: 1.7

Type: local

Published: 3/22/2012

Updated: 1/6/2021

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 5

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

Vulnerability Information

CPE: p-cpe:/a:freebsd:freebsd:gnutls, p-cpe:/a:freebsd:freebsd:gnutls-devel, p-cpe:/a:freebsd:freebsd:libtasn1, cpe:/o:freebsd:freebsd

Required KB Items: Host/local_checks_enabled, Host/FreeBSD/release, Host/FreeBSD/pkg_info

Patch Publication Date: 3/21/2012

Vulnerability Publication Date: 3/20/2012

Reference Information

CVE: CVE-2012-1569