#VU33092 Heap-based buffer overflow - CVE-2014-2525
Vulnerability identifier: #VU33092
Vulnerability risk: Medium
CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]
CVE-ID: CVE-2014-2525
CWE-ID:
CWE-122
Exploitation vector: Network
Exploit availability: No
Description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in Heap-based buffer overflow in the yaml_parser_scan_uri_escapes function in LibYAML before 0.1.6. A remote attacker can use a long sequence of percent-encoded characters in a URI in a YAML file. to trigger heap-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Mitigation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.
External links
https://advisories.mageia.org/MGASA-2014-0150.html
https://lists.opensuse.org/opensuse-updates/2014-04/msg00022.html
https://lists.opensuse.org/opensuse-updates/2015-02/msg00078.html
https://lists.opensuse.org/opensuse-updates/2016-04/msg00050.html
https://rhn.redhat.com/errata/RHSA-2014-0353.html
https://rhn.redhat.com/errata/RHSA-2014-0354.html
https://rhn.redhat.com/errata/RHSA-2014-0355.html
https://secunia.com/advisories/57836
https://secunia.com/advisories/57966
https://secunia.com/advisories/57968
https://support.apple.com/kb/HT6443
https://www.debian.org/security/2014/dsa-2884
https://www.debian.org/security/2014/dsa-2885
https://www.getchef.com/blog/2014/04/09/chef-server-11-0-12-release/
https://www.getchef.com/blog/2014/04/09/enterprise-chef-11-1-3-release/
https://www.getchef.com/blog/2014/04/09/enterprise-chef-1-4-9-release/
https://www.mandriva.com/security/advisories?name=MDVSA-2015:060
https://www.ocert.org/advisories/ocert-2014-003.html
https://www.securityfocus.com/bid/66478
https://www.ubuntu.com/usn/USN-2160-1
https://bitbucket.org/xi/libyaml/commits/bce8b60f0b9af69fa9fab3093d0a41ba243de048
https://puppet.com/security/cve/cve-2014-2525
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
