exploit the possibilities
Home Files News &[SERVICES_TAB]About Contact Add New

Red Hat Security Advisory 2014-0415-01

Red Hat Security Advisory 2014-0415-01
Posted Apr 17, 2014
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2014-0415-01 - YAML is a data serialization format designed for human readability and interaction with scripting languages. LibYAML is a YAML parser and emitter written in C. A buffer overflow flaw was found in the way the libyaml library parsed URLs in YAML documents. An attacker able to load specially crafted YAML input to an application using libyaml could cause the application to crash or, potentially, execute arbitrary code with the privileges of the user running the application. An integer overflow flaw was found in the way the libyaml library handled excessively long YAML tags. An attacker able to load specially crafted YAML input to application using libyaml could cause the application to crash or, potentially, execute arbitrary code with the privileges of the user running the application.

tags | advisory, overflow, arbitrary
systems | linux, redhat
advisories | CVE-2013-6393, CVE-2014-2525
SHA-256 | 5fef5f073818707ceea9b7f87273bfe379b0a83bea50ee402ae2cf18c228dca7

Red Hat Security Advisory 2014-0415-01

Change Mirror Download
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

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

Synopsis: Important: libyaml security update
Advisory ID: RHSA-2014:0415-01
Product: Red Hat Common
Advisory URL: https://rhn.redhat.com/errata/RHSA-2014-0415.html
Issue date: 2014-04-17
CVE Names: CVE-2013-6393 CVE-2014-2525
=====================================================================

1. Summary:

Updated libyaml packages that fix two security issues are now available for
Red Hat Common for Red Hat Enterprise Linux 6.

The Red Hat Security Response Team has rated this update as having
Important 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 Common for RHEL Server (v. 6) - i386, x86_64

3. Description:

YAML is a data serialization format designed for human readability and
interaction with scripting languages. LibYAML is a YAML parser and emitter
written in C.

A buffer overflow flaw was found in the way the libyaml library parsed URLs
in YAML documents. An attacker able to load specially crafted YAML input to
an application using libyaml could cause the application to crash or,
potentially, execute arbitrary code with the privileges of the user running
the application. (CVE-2014-2525)

An integer overflow flaw was found in the way the libyaml library handled
excessively long YAML tags. An attacker able to load specially crafted YAML
input to application using libyaml could cause the application to crash or,
potentially, execute arbitrary code with the privileges of the user running
the application. (CVE-2013-6393)

Red Hat would like to thank oCERT for reporting the CVE-2014-2525 issue.
oCERT acknowledges Ivan Fratric of the Google Security Team as the original
reporter. The CVE-2013-6393 issue was discovered by Florian Weimer of the
Red Hat Product Security Team.

Note: In their default configuration, applications distributed via the Red
Hat Common channel do not use the libyaml library for parsing YAML, and are
therefore not vulnerable to these issues.

All libyaml users are advised to upgrade to these updated packages, which
contain backported patches to correct these issues. All running
applications linked against the libyaml library must be restarted for this
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/site/articles/11258

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

1033990 - CVE-2013-6393 libyaml: heap-based buffer overflow when parsing YAML tags
1078083 - CVE-2014-2525 libyaml: heap-based buffer overflow when parsing URLs

6. Package List:

Red Hat Common for RHEL Server (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Server/en/RH-COMMON/SRPMS/libyaml-0.1.3-1.4.el6.src.rpm

i386:
libyaml-0.1.3-1.4.el6.i686.rpm
libyaml-debuginfo-0.1.3-1.4.el6.i686.rpm
libyaml-devel-0.1.3-1.4.el6.i686.rpm

x86_64:
libyaml-0.1.3-1.4.el6.x86_64.rpm
libyaml-debuginfo-0.1.3-1.4.el6.x86_64.rpm
libyaml-devel-0.1.3-1.4.el6.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-2013-6393.html
https://www.redhat.com/security/data/cve/CVE-2014-2525.html
https://access.redhat.com/security/updates/classification/#important

8. Contact:

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

Copyright 2014 Red Hat, Inc.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.4 (GNU/Linux)

iD8DBQFTT8pbXlSAg2UNWIIRAkrjAJwPLr2lxhdGCyABqHFXbIDKvQsToQCeLZ8X
pJ6m5cusPwlWtLSs7tFvgFU=
=7Rzj
-----END PGP SIGNATURE-----


--
RHSA-announce mailing list
RHSA-announce@redhat.com
https://www.redhat.com/mailman/listinfo/rhsa-announce
Login or Register to add favorites

File Archive:

March 2024

  • Su
  • Mo
  • Tu
  • We
  • Th
  • Fr
  • Sa
  • 1
    Mar 1st
    16 Files
  • 2
    Mar 2nd
    0 Files
  • 3
    Mar 3rd
    0 Files
  • 4
    Mar 4th
    32 Files
  • 5
    Mar 5th
    28 Files
  • 6
    Mar 6th
    42 Files
  • 7
    Mar 7th
    17 Files
  • 8
    Mar 8th
    13 Files
  • 9
    Mar 9th
    0 Files
  • 10
    Mar 10th
    0 Files
  • 11
    Mar 11th
    15 Files
  • 12
    Mar 12th
    19 Files
  • 13
    Mar 13th
    21 Files
  • 14
    Mar 14th
    38 Files
  • 15
    Mar 15th
    15 Files
  • 16
    Mar 16th
    0 Files
  • 17
    Mar 17th
    0 Files
  • 18
    Mar 18th
    10 Files
  • 19
    Mar 19th
    32 Files
  • 20
    Mar 20th
    46 Files
  • 21
    Mar 21st
    16 Files
  • 22
    Mar 22nd
    13 Files
  • 23
    Mar 23rd
    0 Files
  • 24
    Mar 24th
    0 Files
  • 25
    Mar 25th
    12 Files
  • 26
    Mar 26th
    31 Files
  • 27
    Mar 27th
    19 Files
  • 28
    Mar 28th
    0 Files
  • 29
    Mar 29th
    0 Files
  • 30
    Mar 30th
    0 Files
  • 31
    Mar 31st
    0 Files

Top Authors In Last 30 Days

File Tags

Systems

packet storm

© 2022 Packet Storm. All rights reserved.

Services
Security Services
Hosting By
Rokasec
close