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Vulnerability Details : CVE-2013-6393

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.
Publish Date : 2014-02-06 Last Update Date : 2018-10-30
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- CVSS Scores & Vulnerability Types

CVSS Score
6.8
Confidentiality Impact Partial (There is considerable informational disclosure.)
Integrity Impact Partial (Modification of some system files or information is possible, but the attacker does not have control over what can be modified, or the scope of what the attacker can affect is limited.)
Availability Impact Partial (There is reduced performance or interruptions in resource availability.)
Access Complexity Medium (The access conditions are somewhat specialized. Some preconditions must be satistified to exploit)
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s) Denial Of ServiceExecute CodeOverflow
CWE ID 119

- Related OVAL Definitions

Title Definition Id Class Family
DSA-2850-1 libyaml - heap-based buffer overflow oval:org.mitre.oval:def:22031 unix
DSA-2850-2 -- libyaml -- heap-based buffer overflow oval:org.mitre.oval:def:29226 unix
DSA-2870-1 libyaml-libyaml-perl - heap-based buffer overflow oval:org.mitre.oval:def:24291 unix
SUSE-SU-2015:0953-2 -- Security update for perl-YAML-LibYAML (moderate) oval:org.mitre.oval:def:29055 unix
USN-2161-1 -- libyaml-libyaml-perl vulnerabilities oval:org.mitre.oval:def:24117 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2013-6393

# Product Type Vendor Product Version Update Edition Language
1 OS Canonical Ubuntu Linux 12.04 ~~lts~~~ Version Details Vulnerabilities
2 OS Canonical Ubuntu Linux 12.10 Version Details Vulnerabilities
3 OS Canonical Ubuntu Linux 13.10 Version Details Vulnerabilities
4 OS Debian Debian Linux 6.0 Version Details Vulnerabilities
5 OS Debian Debian Linux 7.0 Version Details Vulnerabilities
6 OS Opensuse Leap 42.1 Version Details Vulnerabilities
7 OS Opensuse Opensuse 11.4 Version Details Vulnerabilities
8 OS Opensuse Opensuse 13.1 Version Details Vulnerabilities
9 OS Opensuse Opensuse 13.2 Version Details Vulnerabilities
10 Application Pyyaml Libyaml 0.0.1 Version Details Vulnerabilities
11 Application Pyyaml Libyaml 0.1.1 Version Details Vulnerabilities
12 Application Pyyaml Libyaml 0.1.2 Version Details Vulnerabilities
13 Application Pyyaml Libyaml 0.1.3 Version Details Vulnerabilities
14 Application Pyyaml Libyaml 0.1.4 Version Details Vulnerabilities
15 Application Redhat Openstack 3.0 Version Details Vulnerabilities
16 Application Redhat Openstack 4.0 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Canonical Ubuntu Linux 3
Debian Debian Linux 2
Opensuse Leap 1
Opensuse Opensuse 3
Pyyaml Libyaml 5
Redhat Openstack 2

- References For CVE-2013-6393

https://support.apple.com/kb/HT6536 CONFIRM
https://puppet.com/security/cve/cve-2013-6393 CONFIRM
https://bugzilla.redhat.com/show_bug.cgi?id=1033990 CONFIRM
https://bugzilla.redhat.com/attachment.cgi?id=847926&action=diff
http://www.debian.org/security/2014/dsa-2870
DEBIAN DSA-2870
http://www.mandriva.com/security/advisories?name=MDVSA-2015:060
MANDRIVA MDVSA-2015:060
http://www.securityfocus.com/bid/65258
BID 65258 LibYAML 'scanner.c' Remote Heap Based Buffer Overflow Vulnerability Release Date:2017-04-26
http://www.ubuntu.com/usn/USN-2098-1
UBUNTU USN-2098-1
http://rhn.redhat.com/errata/RHSA-2014-0355.html
REDHAT RHSA-2014:0355
http://lists.opensuse.org/opensuse-updates/2016-04/msg00050.html
SUSE openSUSE-SU-2016:1067
https://bitbucket.org/xi/libyaml/commits/tag/0.1.5 CONFIRM
http://www.debian.org/security/2014/dsa-2850
DEBIAN DSA-2850
http://lists.opensuse.org/opensuse-updates/2014-02/msg00065.html
SUSE openSUSE-SU-2014:0273
http://rhn.redhat.com/errata/RHSA-2014-0353.html
REDHAT RHSA-2014:0353
http://lists.opensuse.org/opensuse-updates/2014-02/msg00064.html
SUSE openSUSE-SU-2014:0272
http://archives.neohapsis.com/archives/bugtraq/2014-10/0103.html
APPLE APPLE-SA-2014-10-16-3
http://rhn.redhat.com/errata/RHSA-2014-0354.html
REDHAT RHSA-2014:0354
http://lists.opensuse.org/opensuse-updates/2015-02/msg00078.html
SUSE openSUSE-SU-2015:0319
http://archives.neohapsis.com/archives/bugtraq/2014-04/0134.html
APPLE APPLE-SA-2014-04-22-1
http://advisories.mageia.org/MGASA-2014-0040.html CONFIRM

- Metasploit Modules Related To CVE-2013-6393

There are not any metasploit modules related to this CVE entry (Please visit www.metasploit.com for more information)


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