Ubuntu 8.04 LTS / 8.10 / 9.04 : nss vulnerabilities (USN-810-1)

Ubuntu Security Notice (C) 2009-2013 Canonical, Inc. / NASL script (C) 2009-2013 Tenable Network Security, Inc.


Synopsis :

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

Description :

Moxie Marlinspike discovered that NSS did not properly handle regular
expressions in certificate names. A remote attacker could create a
specially crafted certificate to cause a denial of service (via
application crash) or execute arbitrary code as the user invoking the
program. (CVE-2009-2404)

Moxie Marlinspike and Dan Kaminsky independently discovered that NSS
did not properly handle certificates with NULL characters in the
certificate name. An attacker could exploit this to perform a man in
the middle attack to view sensitive information or alter encrypted
communications. (CVE-2009-2408)

Dan Kaminsky discovered NSS would still accept certificates with MD2
hash signatures. As a result, an attacker could potentially create a
malicious trusted certificate to impersonate another site.
(CVE-2009-2409).

Solution :

Update the affected packages.

Risk factor :

High / CVSS Base Score : 9.3
(CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C)
CVSS Temporal Score : 7.7
(CVSS2#E:F/RL:OF/RC:C)
Public Exploit Available : true

Family: Ubuntu Local Security Checks

Nessus Plugin ID: 40490 ()

Bugtraq ID: 35888
35891

CVE ID: CVE-2009-2404
CVE-2009-2408
CVE-2009-2409