Vulnerability CVE-2013-6393

Vulnerability CVE-2013-6393

Published: 2014-02-06 Modified: 2014-02-07

Description:

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.

See advisories in our WLB2 database:

	Topic	Author	Date
Med.	LibYAML 0.1.4 remote DoS	Murray	10.02.2014

Type:

CWE-119

(Improper Restriction of Operations within the Bounds of a Memory Buffer)

CVSS2 => (AV:N/AC:M/Au:N/C:P/I:P/A:P)

CVSS Base Score	Impact Subscore	Exploitability Subscore
6.8/10	6.4/10	8.6/10

Exploit range	Attack complexity	Authentication
Remote	Medium	No required
Confidentiality impact	Integrity impact	Availability impact
Partial	Partial	Partial

Affected software
Redhat -> Openstack
Pyyaml -> Libyaml
Opensuse -> LEAP
Opensuse -> Opensuse
Novell -> Opensuse
Novell -> LEAP
Debian -> Debian linux
Canonical -> Ubuntu linux

References:

http://advisories.mageia.org/MGASA-2014-0040.html

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

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

http://lists.opensuse.org/opensuse-updates/2014-02/msg00064.html

http://lists.opensuse.org/opensuse-updates/2014-02/msg00065.html

http://lists.opensuse.org/opensuse-updates/2015-02/msg00078.html

http://lists.opensuse.org/opensuse-updates/2016-04/msg00050.html

http://rhn.redhat.com/errata/RHSA-2014-0353.html

http://rhn.redhat.com/errata/RHSA-2014-0354.html

http://rhn.redhat.com/errata/RHSA-2014-0355.html

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

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

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

http://www.securityfocus.com/bid/65258

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

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

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

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

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

https://support.apple.com/kb/HT6536

Vulnerability 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.

See advisories in our WLB2 database:

Med.

LibYAML 0.1.4 remote DoS

CWE-119

CVSS2 => (AV:N/AC:M/Au:N/C:P/I:P/A:P)

6.8/10

6.4/10

8.6/10

Remote

Medium

No required

Partial

Partial

Partial

Affected software

References: