GLSA-200710-01 : RPCSEC_GSS library: Buffer overflow

This script is Copyright (C) 2007-2014 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-200710-01
(RPCSEC_GSS library: Buffer overflow)

A stack based buffer overflow has been discovered in the
svcauth_gss_validate() function in file lib/rpc/svc_auth_gss.c when
processing an overly long string in a RPC message.

Impact :

A remote attacker could send a specially crafted RPC request to an
application relying on this library, e.g NFSv4 or Kerberos
(GLSA-200709-01), resulting in the execution of arbitrary code with the
privileges of the user running the application.

Workaround :

There is no known workaround at this time.

See also :

http://www.gentoo.org/security/en/glsa/glsa-200709-01.xml
http://www.gentoo.org/security/en/glsa/glsa-200710-01.xml

Solution :

All librpcsecgss users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose '>=net-libs/librpcsecgss-0.16'

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: 26941 (gentoo_GLSA-200710-01.nasl)

Bugtraq ID:

CVE ID: CVE-2007-3999