GLSA-200810-03 : libspf2: DNS response buffer overflow

This script is Copyright (C) 2008-2014 Tenable Network Security, Inc.


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-200810-03
(libspf2: DNS response buffer overflow)

libspf2 uses a fixed-length buffer to receive DNS responses and does
not properly check the length of TXT records, leading to buffer
overflows.

Impact :

A remote attacker could store a specially crafted DNS entry and entice
a user or automated system using libspf2 to lookup that SPF entry (e.g.
by sending an email to the MTA), possibly allowing for the execution of
arbitrary code.

Workaround :

There is no known workaround at this time.

See also :

http://www.gentoo.org/security/en/glsa/glsa-200810-03.xml

Solution :

All libspf2 users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose '>=mail-filter/libspf2-1.2.8'

Risk factor :

Critical / CVSS Base Score : 10.0
(CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C)

Family: Gentoo Local Security Checks

Nessus Plugin ID: 34678 (gentoo_GLSA-200810-03.nasl)

Bugtraq ID:

CVE ID: CVE-2008-2469