Oracle Linux 3 / 4 / 5 : cups (ELSA-2010-0490)

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Synopsis :

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

Description :

From Red Hat Security Advisory 2010:0490 :

Updated cups packages that fix three security issues are now available
for Red Hat Enterprise Linux 3, 4, and 5.

The Red Hat Security Response Team has rated this update as having
important 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.

The Common UNIX Printing System (CUPS) provides a portable printing
layer for UNIX operating systems. The CUPS 'texttops' filter converts
text files to PostScript.

A missing memory allocation failure check flaw, leading to a NULL
pointer dereference, was found in the CUPS 'texttops' filter. An
attacker could create a malicious text file that would cause
'texttops' to crash or, potentially, execute arbitrary code as the
'lp' user if the file was printed. (CVE-2010-0542)

A Cross-Site Request Forgery (CSRF) issue was found in the CUPS web
interface. If a remote attacker could trick a user, who is logged into
the CUPS web interface as an administrator, into visiting a
specially-crafted website, the attacker could reconfigure and disable
CUPS, and gain access to print jobs and system files. (CVE-2010-0540)

Note: As a result of the fix for CVE-2010-0540, cookies must now be
enabled in your web browser to use the CUPS web interface.

An uninitialized memory read issue was found in the CUPS web
interface. If an attacker had access to the CUPS web interface, they
could use a specially-crafted URL to leverage this flaw to read a
limited amount of memory from the cupsd process, possibly obtaining
sensitive information. (CVE-2010-1748)

Red Hat would like to thank the Apple Product Security team for
responsibly reporting these issues. Upstream acknowledges regenrecht
as the original reporter of CVE-2010-0542
Adrian 'pagvac' Pastor of
GNUCITIZEN and Tim Starling as the original reporters of
CVE-2010-0540
and Luca Carettoni as the original reporter of
CVE-2010-1748.

Users of cups are advised to upgrade to these updated packages, which
contain backported patches to correct these issues. After installing
this update, the cupsd daemon will be restarted automatically.

See also :

https://oss.oracle.com/pipermail/el-errata/2010-June/001503.html
https://oss.oracle.com/pipermail/el-errata/2010-June/001504.html
https://oss.oracle.com/pipermail/el-errata/2010-June/001505.html

Solution :

Update the affected cups packages.

Risk factor :

Medium / CVSS Base Score : 6.8
(CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P)
CVSS Temporal Score : 5.6
(CVSS2#E:F/RL:OF/RC:C)
Public Exploit Available : true

Family: Oracle Linux Local Security Checks

Nessus Plugin ID: 68052 ()

Bugtraq ID: 40889
40897

CVE ID: CVE-2010-0540
CVE-2010-0542
CVE-2010-1748