Multiple format string vulnerabilities in the error reporting functionality in the YAML::LibYAML (aka YAML-LibYAML and perl-YAML-LibYAML) module 0.38 for Perl allow remote attackers to cause a denial of service (process crash) via format string specifiers in a (1) YAML stream to the Load function, (2) YAML node to the load_node function, (3) YAML mapping to the load_mapping function, or (4) YAML sequence to the load_sequence function
Published Sep 9, 2012
5.0
MEDIUMCVSS 2.0
EPSS 2.43%
Description
Multiple format string vulnerabilities in the error reporting functionality in the YAML::LibYAML (aka YAML-LibYAML and perl-YAML-LibYAML) module 0.38 for Perl allow remote attackers to cause a denial of service (process crash) via format string specifiers in a (1) YAML stream to the Load function, (2) YAML node to the load_node function, (3) YAML mapping to the load_mapping function, or (4) YAML sequence to the load_sequence function.
Affected products
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:N/AC:L/Au:N/C:N/I:N/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (8 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.43% (0.02426) | 83.62th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.43% (0.02426) | 82.02th | v5 (v2026.06.15) |
| Mar 17, 2025 | 3.85% (0.03855) | 87.43th | v4 (v2025.03.14) |
| Dec 12, 2024 | 21.15% (0.21154) | 96.62th | v3 (v2023.03.01) |
| Mar 7, 2023 | 21.15% (0.21154) | 95.62th | v3 (v2023.03.01) |
| Mar 6, 2023 | 3.78% (0.03779) | 85.48th | v2 (v2022.01.01) |
| Apr 1, 2022 | 3.78% (0.03779) | 84.01th | v2 (v2022.01.01) |
| Feb 4, 2022 | 3.78% (0.03779) | 67.21th | v2 (v2022.01.01) |
References (16)
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=661548 x_refsource_MISC
- http://lists.fedoraproject.org/pipermail/package-announce/2012-April/077004.html vendor-advisoryx_refsource_FEDORA
- http://lists.fedoraproject.org/pipermail/package-announce/2012-April/077023.html vendor-advisoryx_refsource_FEDORA
- http://lists.fedoraproject.org/pipermail/package-announce/2012-April/077782.html vendor-advisoryx_refsource_FEDORA
- http://lists.opensuse.org/opensuse-updates/2012-08/msg00029.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-updates/2015-02/msg00078.html vendor-advisoryx_refsource_SUSE
- http://secunia.com/advisories/48317 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/50277 third-party-advisoryx_refsource_SECUNIA
- http://www.debian.org/security/2012/dsa-2432 vendor-advisoryx_refsource_DEBIAN
- http://www.openwall.com/lists/oss-security/2012/03/09/6 mailing-listx_refsource_MLIST
- http://www.openwall.com/lists/oss-security/2012/03/10/4 mailing-listx_refsource_MLIST
- http://www.securityfocus.com/bid/52381 vdb-entryx_refsource_BID
- https://bugzilla.redhat.com/show_bug.cgi?id=801738 x_refsource_MISC
- https://exchange.xforce.ibmcloud.com/vulnerabilities/73856 vdb-entryx_refsource_XF
- https://rt.cpan.org/Public/Bug/Display.html?id=46507 x_refsource_MISC
- https://rt.cpan.org/Public/Bug/Display.html?id=75365 x_refsource_MISC
Change history (0)
No recorded changes yet.