Security Advisory SA48317 - Perl YAML::LibYAML Module YAML Document Parsing Format String Vulnerabilities

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Secunia Advisory SA48317

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

Secunia Advisory

SA48317

Release Date

2012-03-09

Last Update

2012-03-12

Popularity

1,442 view

Comments

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Criticality level

Moderately critical

Impact

System access

Where

From remote

Authentication level

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Report reliability

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Solution Status

Unpatched

Systems affected

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Approve distribution

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Remediation status

Secunia VIM

Software:

YAML::LibYAML 0.x (module for Perl)

Secunia CVSS Score

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CVE Reference(s)

CVE-2012-1152 CVSS score available to Secunia VIM customers

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.

Changelog
Further details available to Secunia VIM customers

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

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Secunia Advisory SA48317

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

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