Summary
Florian Weimer of the Red Hat Product Security Team discovered a heap-based buffer overflow flaw in LibYAML, a fast YAML 1.1 parser and emitter library. A remote attacker could provide a YAML document with a specially-crafted tag that, when parsed by an application using libyaml, would cause the application to crash or, potentially, execute arbitrary code with the privileges of the user running the application.
Solution
For the oldstable distribution (squeeze), this problem has been fixed in version 0.1.3-1+deb6u2.
For the stable distribution (wheezy), this problem has been fixed in version 0.1.4-2+deb7u2.
For the unstable distribution (sid), this problem has been fixed in version 0.1.4-3.
We recommend that you upgrade your libyaml packages.
Affected
libyaml on Debian Linux
Detection
This check tests the installed software version using the apt package manager.
References
Updated on 2015-03-25
Severity
Classification
-
CVE CVE-2013-6393 -
CVSS Base Score: 6.8
AV:N/AC:M/Au:N/C:P/I:P/A:P
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