Amazon Linux 1 Security Advisory: ALAS-2014-291
Advisory Release Date: 2014-02-26 14:27 Pacific
Advisory Updated Date: 2014-09-16 22:32 Pacific
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.
Affected Packages:
libyaml
Issue Correction:
Run yum update libyaml to update your system.
i686:
libyaml-devel-0.1.4-6.5.amzn1.i686
libyaml-debuginfo-0.1.4-6.5.amzn1.i686
libyaml-0.1.4-6.5.amzn1.i686
src:
libyaml-0.1.4-6.5.amzn1.src
x86_64:
libyaml-debuginfo-0.1.4-6.5.amzn1.x86_64
libyaml-0.1.4-6.5.amzn1.x86_64
libyaml-devel-0.1.4-6.5.amzn1.x86_64