Moderate: libyaml security update

Synopsis

Moderate: libyaml security update

Type/Severity

Security Advisory: Moderate

Topic

Updated libyaml packages that fix one security issue are now available for
Red Hat Enterprise Linux OpenStack Platform 4.0 and 5.0 for Red Hat
Enterprise Linux 6.

Red Hat Product Security has rated this update as having Moderate security
impact. A Common Vulnerability Scoring System (CVSS) base score, which
gives a detailed severity rating, is available from the CVE link in the
References section.

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.

An assertion failure was found in the way the libyaml library parsed
wrapped strings. An attacker able to load specially crafted YAML input into
an application using libyaml could cause the application to crash.
(CVE-2014-9130)

All libyaml users are advised to upgrade to these updated packages, which
contain a backported patch to correct this issue. All running applications
linked against the libyaml library must be restarted for this update to
take effect.

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/articles/11258

Affected Products

• Red Hat OpenStack 5.0 for RHEL 6 x86_64
• Red Hat OpenStack 4.0 x86_64

Fixes

• BZ - 1169369 - CVE-2014-9130 libyaml: assert failure when processing wrapped strings

CVEs

• CVE-2014-9130

References

• http://www.redhat.com/security/updates/classification/#normal