CVE-2013-6393

Home/CVE/The yaml_parser_scan_tag_uri function in scanner.c in LibYAML before 0.1.5 performs an incorrect cast, which allows remo

CVE

The yaml_parser_scan_tag_uri function in scanner.c in LibYAML before 0.1.5 performs an incorrect cast, which allows remo

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.

MEDIUM · CVSS 6.8 EPSS 0.0806

Monitor

EPSS percentile: top 8% of all CVEs by exploitation likelihood

Sigma rules0 YARA rules0

⬡

Weakness Classification

CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer

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Affected Products & Versions

pyyaml libyaml<= 0.1.4
pyyaml libyamlall versions
canonical ubuntu linuxall versions
redhat openstackall versions
debian linuxall versions
opensuse leapall versions
opensuseall versions

▤

Affected Packages

Language-ecosystem packages (from OSV) tied to this CVE, with the version that fixes it - the dependency-level detail NVD doesn’t carry.

npm libyaml CRITICAL fixed in 0.2.3

▣

Scoring & Timeline

6.8

MEDIUM · CVSS v2 (legacy) · secalert@redhat.com

View on NVD

This CVE predates CVSS v3; the legacy v2 score is shown so triage still has a severity to work with.

v2 Vector

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

Published to NVD06 Feb 2014 · 10:55 PM

⚑

Vendor Advisories

suse-csafopenSUSE-SU-2024:10029-1
suse-csafopenSUSE-SU-2024:10520-1
suse-csafSUSE-SU-2015:0953-1
suse-csafSUSE-SU-2015:0953-2
usnUSN-2161-1
Show all 11 vendor advisoriesrhsaRHSA-2014:0355Important
rhsaRHSA-2014:0353Important
rhsaRHSA-2014:0364Important
rhsaRHSA-2014:0354Important
rhsaRHSA-2014:0415Important
usnUSN-2098-1

🔗

References & Sources

Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.

http://advisories.mageia.org/MGASA-2014-0040.htmlThird Party Advisory

http://archives.neohapsis.com/archives/bugtraq/2014-04/0134.htmlBroken Link

http://archives.neohapsis.com/archives/bugtraq/2014-10/0103.htmlBroken Link

http://lists.opensuse.org/opensuse-updates/2014-02/msg00064.htmlThird Party Advisory

http://lists.opensuse.org/opensuse-updates/2014-02/msg00065.htmlThird Party Advisory

http://lists.opensuse.org/opensuse-updates/2015-02/msg00078.htmlThird Party Advisory

Show all 21 references

http://lists.opensuse.org/opensuse-updates/2016-04/msg00050.htmlThird Party Advisory

http://osvdb.org/102716

http://rhn.redhat.com/errata/RHSA-2014-0353.htmlThird Party Advisory

http://rhn.redhat.com/errata/RHSA-2014-0354.htmlThird Party Advisory

http://rhn.redhat.com/errata/RHSA-2014-0355.htmlThird Party Advisory

http://www.debian.org/security/2014/dsa-2850Third Party Advisory

http://www.debian.org/security/2014/dsa-2870Third Party Advisory

http://www.mandriva.com/security/advisories?name=MDVSA-2015:060Third Party Advisory

http://www.securityfocus.com/bid/65258Third Party AdvisoryVDB Entry

http://www.ubuntu.com/usn/USN-2098-1Third Party Advisory

https://bitbucket.org/xi/libyaml/commits/tag/0.1.5Issue Tracking

https://bugzilla.redhat.com/attachment.cgi?id=847926&action=diffIssue Tracking

https://bugzilla.redhat.com/show_bug.cgi?id=1033990Issue TrackingPatch

https://puppet.com/security/cve/cve-2013-6393

https://support.apple.com/kb/HT6536Third Party Advisory

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