CVE-2013-6393

NameCVE-2013-6393
DescriptionThe 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.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SuSE, Mageia, GitHub code/issues, web search, more)
ReferencesDSA-2850-1, DSA-2870-1
NVD severitymedium (attack range: remote)
Debian Bugs737076

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
libyaml (PTS)wheezy (security), wheezy0.1.4-2+deb7u5fixed
stretch, sid, jessie0.1.6-3fixed
libyaml-libyaml-perl (PTS)wheezy (security), wheezy0.38-3+deb7u3fixed
stretch, sid, jessie0.41-6fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
libyamlsource(unstable)0.1.4-3medium737076
libyamlsourcesqueeze0.1.3-1+deb6u2mediumDSA-2850-1
libyamlsourcewheezy0.1.4-2+deb7u2mediumDSA-2850-1
libyaml-libyaml-perlsource(unstable)0.41-4medium
libyaml-libyaml-perlsourcesqueeze0.33-1+squeeze2mediumDSA-2870-1
libyaml-libyaml-perlsourcewheezy0.38-3+deb7u1mediumDSA-2870-1

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