Buffer overflow in Pyyaml Libyaml
CVE-2014-2525
Heap-based buffer overflow in the yaml_parser_scan_uri_escapes function in LibYAML before 0.1.6 allows context-dependent attackers to execute arbitrary code via a long sequence of percent-encoded characters in a URI in a YAML file.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v2 metric
CVSS v2 base score 6.8 (Medium). Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.088 (95.0th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 95th percentile — 95.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.098 · newest: 0.088 · change: -0.010
Affected products
- Pyyaml Libyaml — versions 0.0.1, 0.1.1, 0.1.2
- openSUSE Leap — versions 42.1
- openSUSE — versions 13.1, 13.2
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.securityfocus.com/bid/66478 (vdb-entry)
- secunia.com/advisories/57836 (third-party-advisory)
- puppet.com/security/cve/cve-2014-2525
- www.mandriva.com/security/advisories (vendor-advisory)
- www.ocert.org/advisories/ocert-2014-003.html (US Government Resource)
- www.debian.org/security/2014/dsa-2885 (vendor-advisory)
- www.ubuntu.com/usn/USN-2160-1 (vendor-advisory)
- lists.opensuse.org/opensuse-updates/2015-02/msg00078.html (vendor-advisory, Third Party Advisory)
- rhn.redhat.com/errata/RHSA-2014-0355.html (vendor-advisory)
- www.debian.org/security/2014/dsa-2884 (vendor-advisory)
Frequently asked questions
- What is CVE-2014-2525?
- CVE-2014-2525 is a vulnerability in Pyyaml Libyaml, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. Published 2014-03-28.
- Is CVE-2014-2525 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.