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RHSA-2014:0415: libyaml security update

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RHSA-2014:0415: libyaml security update

Severity
7
CVSS
(AV:N/AC:M/Au:N/C:P/I:P/A:P)
Published
03/28/2014
Created
07/25/2018
Added
04/23/2014
Modified
07/04/2017

Description

YAML is a data serialization format designed for human readability andinteraction with scripting languages. LibYAML is a YAML parser and emitterwritten in C.A buffer overflow flaw was found in the way the libyaml library parsed URLsin YAML documents. An attacker able to load specially crafted YAML input toan application using libyaml could cause the application to crash or,potentially, execute arbitrary code with the privileges of the user runningthe application. (CVE-2014-2525)An integer overflow flaw was found in the way the libyaml library handledexcessively long YAML tags. An attacker able to load specially crafted YAMLinput to application using libyaml could cause the application to crash or,potentially, execute arbitrary code with the privileges of the user runningthe 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 originalreporter. The CVE-2013-6393 issue was discovered by Florian Weimer of theRed Hat Product Security Team.Note: In their default configuration, applications distributed via the RedHat Common channel do not use the libyaml library for parsing YAML, and aretherefore not vulnerable to these issues.All libyaml users are advised to upgrade to these updated packages, whichcontain backported patches to correct these issues. All runningapplications linked against the libyaml library must be restarted for thisupdate to take effect.

Solution(s)

  • redhat-upgrade-libyaml
  • redhat-upgrade-libyaml-devel

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