CVE-2013-6393

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Summary

CVECVE-2013-6393
StatePUBLISHED
Assignerredhat
Source PriorityCVE Program / NVD first with legacy fallback
Published2014-02-06 22:55:03 UTC
Updated2026-04-29 01:13:23 UTC
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.

Risk And Classification

Primary CVSS: v2.0 6.8 from [email protected]

AV:N/AC:M/Au:N/C:P/I:P/A:P

EPSS: 0.080600000 probability, percentile 0.921470000 (date 2026-05-04)

Problem Types: CWE-119 | n/a

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Medium
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial

AV:N/AC:M/Au:N/C:P/I:P/A:P

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Canonical Ubuntu Linux 12.04 All All All
Operating System Canonical Ubuntu Linux 12.10 All All All
Operating System Canonical Ubuntu Linux 13.10 All All All
Operating System Debian Debian Linux 6.0 All All All
Operating System Debian Debian Linux 7.0 All All All
Operating System Opensuse Leap 42.1 All All All
Operating System Opensuse Opensuse 11.4 All All All
Operating System Opensuse Opensuse 13.1 All All All
Operating System Opensuse Opensuse 13.2 All All All
Application Pyyaml Libyaml 0.0.1 All All All
Application Pyyaml Libyaml 0.1.1 All All All
Application Pyyaml Libyaml 0.1.2 All All All
Application Pyyaml Libyaml 0.1.3 All All All
Application Pyyaml Libyaml All All All All
Application Redhat Openstack 3.0 All All All
Application Redhat Openstack 4.0 All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
openSUSE-SU-2016:1067-1: moderate: Security update for perl-YAML-LibYAML af854a3a-2127-422b-91ae-364da2661108 lists.opensuse.org Third Party Advisory
openSUSE-SU-2014:0272-1: moderate: update for libyaml af854a3a-2127-422b-91ae-364da2661108 lists.opensuse.org Third Party Advisory
openSUSE-SU-2014:0273-1: moderate: update for libyaml af854a3a-2127-422b-91ae-364da2661108 lists.opensuse.org Third Party Advisory
osvdb.org/102716 af854a3a-2127-422b-91ae-364da2661108 osvdb.org
openSUSE-SU-2015:0319-1: moderate: Security update for perl-YAML-LibYAML af854a3a-2127-422b-91ae-364da2661108 lists.opensuse.org Third Party Advisory
About the security content of OS X Server v4.0 - Apple Support af854a3a-2127-422b-91ae-364da2661108 support.apple.com Third Party Advisory
USN-2098-1: LibYAML vulnerability | Ubuntu af854a3a-2127-422b-91ae-364da2661108 www.ubuntu.com Third Party Advisory
Red Hat Customer Portal af854a3a-2127-422b-91ae-364da2661108 rhn.redhat.com Third Party Advisory
Debian -- Security Information -- DSA-2870-1 libyaml-libyaml-perl af854a3a-2127-422b-91ae-364da2661108 www.debian.org Third Party Advisory
xi / libyaml / Commits — Bitbucket af854a3a-2127-422b-91ae-364da2661108 bitbucket.org Issue Tracking
Bug 1033990 – CVE-2013-6393 libyaml: heap-based buffer overflow when parsing YAML tags af854a3a-2127-422b-91ae-364da2661108 bugzilla.redhat.com Issue Tracking, Patch
NEOHAPSIS - Peace of Mind Through Integrity and Insight af854a3a-2127-422b-91ae-364da2661108 archives.neohapsis.com Broken Link
LibYAML 'scanner.c' Remote Heap Based Buffer Overflow Vulnerability af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com Third Party Advisory, VDB Entry
Attachment 847926 Details for Bug 1033990 – String overflow patch af854a3a-2127-422b-91ae-364da2661108 bugzilla.redhat.com Issue Tracking
Red Hat Customer Portal af854a3a-2127-422b-91ae-364da2661108 rhn.redhat.com Third Party Advisory
NEOHAPSIS - Peace of Mind Through Integrity and Insight af854a3a-2127-422b-91ae-364da2661108 archives.neohapsis.com Broken Link
Red Hat Customer Portal af854a3a-2127-422b-91ae-364da2661108 rhn.redhat.com Third Party Advisory
Mageia Advisory: MGASA-2014-0040 - Updated yaml packages fix CVE-2013-6393 af854a3a-2127-422b-91ae-364da2661108 advisories.mageia.org Third Party Advisory
Support / Security / Advisories / / MDVSA-2015:060 | Mandriva af854a3a-2127-422b-91ae-364da2661108 www.mandriva.com Third Party Advisory
CVE-2013-6393 | Puppet af854a3a-2127-422b-91ae-364da2661108 puppet.com
Debian -- Security Information -- DSA-2850-1 libyaml af854a3a-2127-422b-91ae-364da2661108 www.debian.org Third Party Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 980716 Nodejs (npm) Security Update for libyaml (GHSA-m75h-cghq-c8h5)
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