Ubuntu 12.10 : ruby1.8 vulnerabilities (USN-1603-2)

Ubuntu Security Notice (C) 2012-2013 Canonical, Inc. / NASL script (C) 2012-2013 Tenable Network Security, Inc.


Synopsis :

The remote Ubuntu host is missing a security-related patch.

Description :

USN-1603-1 fixed vulnerabilities in Ruby. This update provides the
corresponding updates for Ubuntu 12.10.

Shugo Maedo and Vit Ondruch discovered that Ruby incorrectly allowed
untainted strings to be modified in protective safe levels. An
attacker could use this flaw to bypass intended access restrictions.
(CVE-2012-4466, CVE-2012-4481).

Solution :

Update the affected libruby1.8 package.

Risk factor :

Medium / CVSS Base Score : 5.0
(CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:N)
CVSS Temporal Score : 3.7
(CVSS2#E:U/RL:OF/RC:C)
Public Exploit Available : false

Family: Ubuntu Local Security Checks

Nessus Plugin ID: 62660 ()

Bugtraq ID: 55757
55813

CVE ID: CVE-2012-4466
CVE-2012-4481