Heap-based buffer overflow in the yaml_parser_scan_uri_escapes function in LibYAML before…
Priority MEDIUM 41CWE-119Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Medium
- Impact type
- Code execution
- Confidentiality · integrity · availability
- Partial · Partial · Partial
- Fix status
- Partial Red Hat: 5 fixed, 5 without a fix
Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-119 and the CVSS impact.
Summary
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.
Why it matters now
EPSS 0.08772 95th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Partial Red Hat: 5 advisoriesRed Hat: 5 fixed, 5 without a fix
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 9
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:pyyaml:libyaml:*:*:*:*:*:*:*:* | up to 0.1.5 | Vulnerable | Pyyaml |
| cpe:2.3:a:pyyaml:libyaml:0.0.1:*:*:*:*:*:*:* | 0.0.1 | Vulnerable | Pyyaml |
| cpe:2.3:a:pyyaml:libyaml:0.1.1:*:*:*:*:*:*:* | 0.1.1 | Vulnerable | Pyyaml |
| cpe:2.3:a:pyyaml:libyaml:0.1.2:*:*:*:*:*:*:* | 0.1.2 | Vulnerable | Pyyaml |
| cpe:2.3:a:pyyaml:libyaml:0.1.3:*:*:*:*:*:*:* | 0.1.3 | Vulnerable | Pyyaml |
| cpe:2.3:a:pyyaml:libyaml:0.1.4:*:*:*:*:*:*:* | 0.1.4 | Vulnerable | Pyyaml |
| cpe:2.3:o:opensuse:leap:42.1:*:*:*:*:*:*:* | 42.1 | Vulnerable | openSUSE |
| cpe:2.3:o:opensuse:opensuse:13.1:*:*:*:*:*:*:* | 13.1 | Vulnerable | openSUSE |
| cpe:2.3:o:opensuse:opensuse:13.2:*:*:*:*:*:*:* | 13.2 | Vulnerable | openSUSE |
- cpe:2.3:a:pyyaml:libyaml:*:*:*:*:*:*:*:* Versions up to 0.1.5 Vulnerable ·Pyyaml
- cpe:2.3:a:pyyaml:libyaml:0.0.1:*:*:*:*:*:*:* Versions 0.0.1 Vulnerable ·Pyyaml
- cpe:2.3:a:pyyaml:libyaml:0.1.1:*:*:*:*:*:*:* Versions 0.1.1 Vulnerable ·Pyyaml
- cpe:2.3:a:pyyaml:libyaml:0.1.2:*:*:*:*:*:*:* Versions 0.1.2 Vulnerable ·Pyyaml
- cpe:2.3:a:pyyaml:libyaml:0.1.3:*:*:*:*:*:*:* Versions 0.1.3 Vulnerable ·Pyyaml
- cpe:2.3:a:pyyaml:libyaml:0.1.4:*:*:*:*:*:*:* Versions 0.1.4 Vulnerable ·Pyyaml
- cpe:2.3:o:opensuse:leap:42.1:*:*:*:*:*:*:* Versions 42.1 Vulnerable ·openSUSE
- cpe:2.3:o:opensuse:opensuse:13.1:*:*:*:*:*:*:* Versions 13.1 Vulnerable ·openSUSE
- cpe:2.3:o:opensuse:opensuse:13.2:*:*:*:*:*:*:* Versions 13.2 Vulnerable ·openSUSE
Remediation
Red Hat 5 advisories
- RHSA-2014:0415 Released 2014-04-17 · Red Hat rating Importantlibyaml security update
- Red Hat Common for RHEL Server (v. 6) libyaml-0.1.3-1.4.el6, libyaml-devel-0.1.3-1.4.el6
- RHSA-2014:0364 Released 2014-04-03 · Red Hat rating Importantruby193-libyaml security update
- Red Hat Enterprise Linux OpenStack Platform 3.0 ruby193-libyaml-0.1.4-5.1.el6, ruby193-libyaml-devel-0.1.4-5.1.el6
- RHSA-2014:0353 Released 2014-04-02 · Red Hat rating Importantlibyaml security update
- Red Hat Enterprise Linux OpenStack Platform 3.0 libyaml-0.1.3-1.4.el6, libyaml-devel-0.1.3-1.4.el6
Show 2 more Red Hat advisories
- RHSA-2014:0354 Released 2014-04-02 · Red Hat rating Importantlibyaml security update
- Red Hat Enterprise Linux OpenStack Platform 4.0 libyaml-0.1.3-1.4.el6, libyaml-devel-0.1.3-1.4.el6
- RHSA-2014:0355 Released 2014-04-02 · Red Hat rating Importantruby193-libyaml security update
- Red Hat Software Collections 1 for Red Hat Enterprise Linux Server (v. 6) ruby193-libyaml-0.1.4-5.1.el6, ruby193-libyaml-devel-0.1.4-5.1.el6
- Red Hat Software Collections 1 for Red Hat Enterprise Linux Workstation (v. 6) ruby193-libyaml-0.1.4-5.1.el6, ruby193-libyaml-devel-0.1.4-5.1.el6
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| OpenShift Enterprise 1 | Affected | No fix planned: Will not fix |
| Red Hat Enterprise Linux 6 | Affected | No fix yet |
| Red Hat Enterprise MRG 1 | Affected | No fix planned: Will not fix |
| Red Hat Enterprise MRG 2 | Affected | No fix planned: Will not fix |
| Red Hat Subscription Asset Manager | Affected | No fix yet |
| Red Hat Common for RHEL Server (v. 6) | Fixed | RHSA-2014:0415 |
| Red Hat Enterprise Linux OpenStack Platform 3.0 | Fixed | RHSA-2014:0353, RHSA-2014:0364 |
| Red Hat Enterprise Linux OpenStack Platform 4.0 | Fixed | RHSA-2014:0354 |
| Red Hat Software Collections 1 for Red Hat Enterprise Linux Server (v. 6) | Fixed | RHSA-2014:0355 |
| Red Hat Software Collections 1 for Red Hat Enterprise Linux Workstation (v. 6) | Fixed | RHSA-2014:0355 |
Not affected: 5 products
- CloudForms Management Engine 5
- Red Hat Enterprise Linux 7
- Red Hat Satellite 5
- Red Hat Satellite 6
- Red Hat Software Collections
Timeline
- 2026-10-02 Threatist record created from CVE-2014-2525
- 2026-10-03 Alias added: GHSA-rffm-7xqq-h2v6
References
Advisory 11
Other 6
- https://puppet.com/security/cve/cve-2014-2525
- http://www.ocert.org/advisories/ocert-2014-003.html
- http://www.getchef.com/blog/2014/04/09/chef-server-11-0-12-release/
- http://support.apple.com/kb/HT6443
- http://www.getchef.com/blog/2014/04/09/enterprise-chef-11-1-3-release/
- http://www.getchef.com/blog/2014/04/09/enterprise-chef-1-4-9-release/
Sources
- CVE-2014-2525 · CVE Program
- CVE-2014-2525 · NVD
- FIRST EPSS
- GHSA-rffm-7xqq-h2v6 · GitHub Advisory Database · CC BY 4.0
- CVE-2014-2525 · Red Hat security data · CC BY 4.0
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