[SECURITY] Fedora 20 Update: mod_nss-1.0.8-28.fc20

[updates at fedoraproject.org]

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Fedora Update Notification
FEDORA-2013-22730
2013-12-05 00:21:46
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Name        : mod_nss
Product     : Fedora 20
Version     : 1.0.8
Release     : 28.fc20
URL         : http://directory.fedoraproject.org/wiki/Mod_nss
Summary     : SSL/TLS module for the Apache HTTP server
Description :
The mod_nss module provides strong cryptography for the Apache Web
server via the Secure Sockets Layer (SSL) and Transport Layer
Security (TLS) protocols using the Network Security Services (NSS)
security library.

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Update Information:

A flaw was found in the way NSSVerifyClient was handled when used in both server / vhost context as well as directory context (specified either via <Directory> or <Location> directive).  If 'NSSVerifyClient none' was set in the server / vhost context (i.e. when server is configured to not request or require client certificate authentication on the initial connection), and client certificate authentication was expected to be required for a specific directory via 'NSSVerifyClient require' setting, mod_nss failed to properly require expected certificate authentication.  Remote attacker able to connect to the web server using such mod_nss configuration and without a valid client certificate could possibly use this flaw to access content of the restricted directories.
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ChangeLog:

* Tue Dec  3 2013 Rob Crittenden <rcritten at redhat.com> - 1.0.8-28
- Resolves: CVE-2013-4566, bz #1036940
- [mod_nss-nssverifyclient.patch]
- Bugzilla Bug #1037722 - CVE-2013-4566 mod_nss: incorrect handling of
  NSSVerifyClient in directory context [fedora-all] (rcritten)
- Bugzilla Bug #1037761 - mod_nss does not respect `NSSVerifyClient` in
  Directory (rcritten)
- [mod_nss-usecases.patch]
- Bugzilla Bug #1036940 - [DOC] making mod_nss work in FIPS mode (mharmsen)
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References:

  [ 1 ] Bug #1016832 - CVE-2013-4566 mod_nss: incorrect handling of NSSVerifyClient in directory context
        https://bugzilla.redhat.com/show_bug.cgi?id=1016832
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This update can be installed with the "yum" update program.  Use 
su -c 'yum update mod_nss' at the command line.
For more information, refer to "Managing Software with yum",
available at http://docs.fedoraproject.org/yum/.

All packages are signed with the Fedora Project GPG key.  More details on the
GPG keys used by the Fedora Project can be found at
https://fedoraproject.org/keys
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