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Red Hat Security Advisory 2012-1550-01

Red Hat Security Advisory 2012-1550-01
Posted Dec 7, 2012
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2012-1550-01 - Red Hat Certificate System is an enterprise software system designed to manage enterprise Public Key Infrastructure deployments. Multiple cross-site scripting flaws were discovered in the Red Hat Certificate System. An attacker could use these flaws to perform a cross-site scripting attack against victims using Certificate System's web interface. Multiple denial of service flaws were found in the Red Hat Certificate System token processing. A Certificate System user could use these flaws to crash the Apache httpd web server child process, possibly interrupting the processing of other users' requests.

tags | advisory, web, denial of service, xss
systems | linux, redhat
advisories | CVE-2012-4543, CVE-2012-4555, CVE-2012-4556
SHA-256 | 26ae7d0ec1a67dd00f9ba9c95c8dfaad4076143b7d0bc2c4864455634bd80d9f

Red Hat Security Advisory 2012-1550-01

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=====================================================================
Red Hat Security Advisory

Synopsis: Moderate: pki security update
Advisory ID: RHSA-2012:1550-01
Product: Red Hat Certificate System
Advisory URL: https://rhn.redhat.com/errata/RHSA-2012-1550.html
Issue date: 2012-12-06
CVE Names: CVE-2012-4543 CVE-2012-4555 CVE-2012-4556
=====================================================================

1. Summary:

Updated pki-common and pki-tps packages that fix multiple security issues
are now available for Red Hat Certificate System 8.1.

The Red Hat Security Response Team has rated this update as having moderate
security impact. Common Vulnerability Scoring System (CVSS) base scores,
which give detailed severity ratings, are available for each vulnerability
from the CVE links in the References section.

2. Relevant releases/architectures:

Red Hat Certificate System 8 - i386, noarch, x86_64

3. Description:

Red Hat Certificate System (RHCS) is an enterprise software system designed
to manage enterprise Public Key Infrastructure (PKI) deployments.

Multiple cross-site scripting flaws were discovered in the Red Hat
Certificate System. An attacker could use these flaws to perform a
cross-site scripting (XSS) attack against victims using Certificate
System's web interface. (CVE-2012-4543)

Multiple denial of service flaws were found in the Red Hat Certificate
System token processing. A Certificate System user could use these flaws
to crash the Apache httpd web server child process, possibly interrupting
the processing of other users' requests. (CVE-2012-4555, CVE-2012-4556)

Red Hat would like to thank Patrick Raspante and Ryan Millay of GDC4S for
reporting the CVE-2012-4555 and CVE-2012-4556 issues.

All users of Red Hat Certificate System are advised to upgrade to these
updated packages, which correct these issues. After installing this update,
all Red Hat Certificate System subsystems must be restarted ("/etc/init.d
/[instance-name] restart") for the update to take effect.

4. Solution:

Before applying this update, make sure all previously-released errata
relevant to your system have been applied.

This update is available via the Red Hat Network. Details on how to
use the Red Hat Network to apply this update are available at
https://access.redhat.com/knowledge/articles/11258

5. Bugs fixed (http://bugzilla.redhat.com/):

864397 - CVE-2012-4543 Certificate System: Multiple cross-site scripting flaws by displaying CRL or processing profile
869570 - CVE-2012-4555 pki-tps: Temporary denial of service on interrupted token format operations
869579 - CVE-2012-4556 pki-tps: Connection reset when performing empty certificate search in TPS

6. Package List:

Red Hat Certificate System 8:

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/RHCERT/SRPMS/pki-common-8.1.3-2.el5pki.src.rpm
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/RHCERT/SRPMS/pki-tps-8.1.3-2.el5pki.src.rpm

i386:
pki-tps-8.1.3-2.el5pki.i386.rpm

noarch:
pki-common-8.1.3-2.el5pki.noarch.rpm
pki-common-javadoc-8.1.3-2.el5pki.noarch.rpm

x86_64:
pki-tps-8.1.3-2.el5pki.x86_64.rpm

These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/#package

7. References:

https://www.redhat.com/security/data/cve/CVE-2012-4543.html
https://www.redhat.com/security/data/cve/CVE-2012-4555.html
https://www.redhat.com/security/data/cve/CVE-2012-4556.html
https://access.redhat.com/security/updates/classification/#moderate

8. Contact:

The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2012 Red Hat, Inc.
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