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

Ubuntu Security Notice (C) 2009-2016 Canonical, Inc. / NASL script (C) 2009-2016 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).

Note that Tenable Network Security has extracted the preceding
description block directly from the Ubuntu security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues.

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 : 8.1
(CVSS2#E:ND/RL:OF/RC:C)
Public Exploit Available : false

Family: Ubuntu Local Security Checks

Nessus Plugin ID: 40490 ()

Bugtraq ID: 35888
35891

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

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