YAML::LibYAML module for Perl Load() format string
|yaml-load-format-string (73856)||High Risk|
The YAML::LibYAML module for Perl could allow a remote attacker to execute arbitrary code on the system, caused by a format string error in the Load(), load_node(), load_mapping(), and load_sequence() functions when parsing a YAML document. By sending specially-crafted input containing malicious format specifiers, a remote attacker could exploit this vulnerability to execute arbitrary code on the system or cause the application to crash.
Upgrade to the latest version of LibYAML module for Perl (0.38-2 or 0.33-1+squeeze1 or later), available from the LibYAML Web site. See References.
- CPAN Web site: YAML::LibYAML.
- Debian Bug report logs - #661548: libyaml-libyaml-perl: FTBFS with hardening flags enabled: -Werror=format-security.
- BID-52381: Perl YAML-LibYAML Module 'perl_libyaml.c' Multiple Format String Vulnerabilities
- CVE-2012-1152: Multiple format string vulnerabilities in the error reporting functionality in the YAML::LibYAML (aka YAML-LibYAML and perl-YAML-LibYAML) module 0.38 for Perl allow remote attackers to cause a denial of service (process crash) via format string specifiers in a (1) YAML stream to the Load function, (2) YAML node to the load_node function, (3) YAML mapping to the load_mapping function, or (4) YAML sequence to the load_sequence function.
- DSA-2432: libyaml-libyaml-perl -- format string vulnerabilities
- SA48317: Perl YAML::LibYAML Module YAML Document Parsing Format String Vulnerabilities
- CPAN YAML::LibYAML module for Perl 0.38
Feb 27, 2012
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The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.