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Insecure Library Loading
Moderately critical

Perl YAML::LibYAML Module YAML Document Parsing Format String Vulnerabilities

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Release Date:  2012-03-09    Last Update:  2012-03-12    Views:  1,922

Secunia Advisory SA48317

Where:

From remote

Impact:

System access

Solution Status:

Unpatched

CVE Reference(s):

Description


Multiple vulnerabilities have been reported in the YAML::LibYAML module for Perl, which can be exploited by malicious people to compromise an application using the module.

The vulnerabilities are caused due to format string errors within the "Load()", "load_node()", "load_mapping()", and "load_sequence()" functions (LibYAML/perl_libyaml.c) when parsing a YAML document.

Successful exploitation of the vulnerabilities may allow execution of arbitrary code.

The vulnerabilities are reported in version 0.38. Other versions may also be affected.


Solution:
Do not use YAML::LibYAML to parse YAML documents.

Provided and/or discovered by:
Dominic Hargreaves in a Debian bug report.

Original Advisory:
Debian:
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=661548

https://rt.cpan.org/Public/Bug/Display.html?id=46507

Deep Links:
Links available to Secunia VIM customers

Do you have additional information related to this advisory?

Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this information to vuln@secunia.com

Subject: Perl YAML::LibYAML Module YAML Document Parsing Format String Vulnerabilities

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