SuSE 10 Security Update : Mozilla NSS (ZYPP Patch Number 6541)

This script is Copyright (C) 2009-2016 Tenable Network Security, Inc.

Synopsis :

The remote SuSE 10 host is missing a security-related patch.

Description :

The Mozilla NSS security framework was updated to version

- Heap-based buffer overflow in a regular-expression
parser in Mozilla Network Security Services (NSS) before
3.12.3, as used in Firefox, Thunderbird, SeaMonkey,
Evolution, Pidgin, and AOL Instant Messenger (AIM),
allows remote SSL servers to cause a denial of service
(application crash) or possibly execute arbitrary code
via a long domain name in the subject's Common Name (CN)
field of an X.509 certificate, related to the
cert_TestHostName function. (CVE-2009-2404 / MFSA

- IOActive security researcher Dan Kaminsky reported a
mismatch in the treatment of domain names in SSL
certificates between SSL clients and the Certificate
Authorities (CA) which issue server certificates. In
particular, if a malicious person requested a
certificate for a host name with an invalid null
character in it most CAs would issue the certificate if
the requester owned the domain specified after the null,
while most SSL clients (browsers) ignored that part of
the name and used the unvalidated part in front of the
null. This made it possible for attackers to obtain
certificates that would function for any site they
wished to target. These certificates could be used to
intercept and potentially alter encrypted communication
between the client and a server such as sensitive bank
account transactions. This vulnerability was
independently reported to us by researcher Moxie
Marlinspike who also noted that since Firefox relies on
SSL to protect the integrity of security updates this
attack could be used to serve malicious updates. (MFSA
2009-42 / CVE-2009-2408)

See also :

Solution :

Apply ZYPP patch number 6541.

Risk factor :

High / CVSS Base Score : 9.3

Family: SuSE Local Security Checks

Nessus Plugin ID: 42190 ()

Bugtraq ID:

CVE ID: CVE-2009-2404

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