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

This script is Copyright (C) 2012-2013 Tenable Network Security, Inc.


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.

See also :

http://www.nessus.org/u?15a0940f

Solution :

Update the affected packages.

Risk factor :

Medium / CVSS Base Score : 5.0
(CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P)

Family: FreeBSD Local Security Checks

Nessus Plugin ID: 58422 ()

Bugtraq ID:

CVE ID: CVE-2012-1569

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