Oracle Linux 6 : fuse (ELSA-2011-1083)

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


Synopsis :

The remote Oracle Linux host is missing one or more security updates.

Description :

From Red Hat Security Advisory 2011:1083 :

Updated fuse packages that fix multiple security issues are now
available for Red Hat Enterprise Linux 6.

The Red Hat Security Response Team has rated this update as having
moderate security impact. Common Vulnerability Scoring System (CVSS)
base scores, which give detailed severity ratings, are available for
each vulnerability from the CVE links in the References section.

FUSE (Filesystem in Userspace) can implement a fully functional file
system in a user-space program. These packages provide the mount
utility, fusermount, the tool used to mount FUSE file systems.

Multiple flaws were found in the way fusermount handled the mounting
and unmounting of directories when symbolic links were present. A
local user in the fuse group could use these flaws to unmount file
systems, which they would otherwise not be able to unmount and that
were not mounted using FUSE, via a symbolic link attack.
(CVE-2010-3879, CVE-2011-0541, CVE-2011-0542, CVE-2011-0543)

Note: The util-linux-ng RHBA-2011:0699 update must also be installed
to fully correct the above flaws.

All users should upgrade to these updated packages, which contain
backported patches to correct these issues.

See also :

https://oss.oracle.com/pipermail/el-errata/2011-July/002237.html

Solution :

Update the affected fuse packages.

Risk factor :

Medium / CVSS Base Score : 5.8
(CVSS2#AV:N/AC:M/Au:N/C:N/I:P/A:P)
CVSS Temporal Score : 4.8
(CVSS2#E:F/RL:OF/RC:ND)
Public Exploit Available : true

Family: Oracle Linux Local Security Checks

Nessus Plugin ID: 68309 ()

Bugtraq ID: 44623
46103

CVE ID: CVE-2010-3879
CVE-2011-0541
CVE-2011-0542
CVE-2011-0543