Ubuntu 12.04 LTS / 12.10 / 13.04 / 13.10 : ruby1.8, ruby1.9.1 vulnerabilities (USN-2035-1)

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


Synopsis :

The remote Ubuntu host is missing one or more security-related patches.

Description :

Charlie Somerville discovered that Ruby incorrectly handled floating
point number conversion. An attacker could possibly use this issue
with an application that converts text to floating point numbers to
cause the application to crash, resulting in a denial of service, or
possibly execute arbitrary code. (CVE-2013-4164)

Vit Ondruch discovered that Ruby did not perform taint checking for
certain functions. An attacker could possibly use this issue to bypass
certain intended restrictions. (CVE-2013-2065).

Solution :

Update the affected 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 : 5.9
(CVSS2#E:ND/RL:OF/RC:C)
Public Exploit Available : true

Family: Ubuntu Local Security Checks

Nessus Plugin ID: 71139 ()

Bugtraq ID: 59881
63873

CVE ID: CVE-2013-2065
CVE-2013-4164