Important: perl-YAML-LibYAML

Issue Overview:

The yaml_parser_scan_tag_uri function in scanner.c in LibYAML before 0.1.5 performs an incorrect cast, which allows remote attackers to cause a denial of service (application crash) and possibly execute arbitrary code via crafted tags in a YAML document, which triggers a heap-based buffer overflow.

Heap-based buffer overflow in the yaml_parser_scan_uri_escapes function in LibYAML before 0.1.6 allows context-dependent attackers to execute arbitrary code via a long sequence of percent-encoded characters in a URI in a YAML file.

Affected Packages:

perl-YAML-LibYAML

Issue Correction:
Run yum update perl-YAML-LibYAML to update your system.

New Packages:

i686:  
    perl-YAML-LibYAML-debuginfo-0.41-4.9.amzn1.i686  
    perl-YAML-LibYAML-0.41-4.9.amzn1.i686  
  
src:  
    perl-YAML-LibYAML-0.41-4.9.amzn1.src  
  
x86_64:  
    perl-YAML-LibYAML-debuginfo-0.41-4.9.amzn1.x86_64  
    perl-YAML-LibYAML-0.41-4.9.amzn1.x86_64  

Additional References

Red Hat: CVE-2013-6393, CVE-2014-2525

Mitre: CVE-2013-6393, CVE-2014-2525