HIGH
Buffer overflow in the fribidi_utf8_to_unicode function in PyFriBidi before 0.11.0 allows remote attackers to cause a denial of service (application crash) via a 4-byte utf-8 sequence
Published Aug 26, 2012
8.7
HIGHCVSS 4.0
EPSS 2.67%
Description
Buffer overflow in the fribidi_utf8_to_unicode function in PyFriBidi before 0.11.0 allows remote attackers to cause a denial of service (application crash) via a 4-byte utf-8 sequence.
Affected products
Remediation
No remediation recorded yet.
Metrics
8.7 HIGH GHSA
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Attack Vector Network
Attack Complexity Low
Attack Requirements None
Privileges Required None
User Interaction None
Vulnerable System Confidentiality None
Vulnerable System Integrity None
Vulnerable System Availability High
Subsequent System Confidentiality None
Subsequent System Integrity None
Subsequent System Availability None
7.5 HIGH GHSA
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact None
Integrity Impact None
Availability Impact High
No CVSS v3.0 score for this CVE.
5.0 MEDIUM NVD
AV:N/AC:L/Au:N/C:N/I:N/A:P
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Partial
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
2.67% 0.02674
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.02674
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 | 2.67% (0.02674) | 85.26th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.65% (0.02652) | 83.62th | v5 (v2026.06.15) |
| Mar 17, 2025 | 3.92% (0.03921) | 87.53th | v4 (v2025.03.14) |
| Dec 12, 2024 | 9.72% (0.09719) | 95.07th | v3 (v2023.03.01) |
| Mar 7, 2023 | 9.72% (0.09719) | 93.81th | 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) |
Weaknesses (1)
References (18)
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=663189 x_refsource_MISC
- http://groups.google.com/group/linux.debian.bugs.dist/browse_thread/thread/aacd036037217998/8d095f85f3665bff?lnk=raot x_refsource_MISC
- http://lists.fedoraproject.org/pipermail/package-announce/2012-March/075293.html vendor-advisoryx_refsource_FEDORA
- http://lists.fedoraproject.org/pipermail/package-announce/2012-March/076038.html vendor-advisoryx_refsource_FEDORA
- http://lists.fedoraproject.org/pipermail/package-announce/2012-March/076053.html vendor-advisoryx_refsource_FEDORA
- http://www.openwall.com/lists/oss-security/2012/03/14/4 mailing-listx_refsource_MLIST
- http://www.openwall.com/lists/oss-security/2012/03/14/9 mailing-listx_refsource_MLIST
- http://www.securityfocus.com/bid/52451 vdb-entryx_refsource_BID
- https://bugzilla.redhat.com/show_bug.cgi?id=801896 x_refsource_MISC
- https://bugzilla.wikimedia.org/show_bug.cgi?id=35055 x_refsource_MISC
- https://exchange.xforce.ibmcloud.com/vulnerabilities/74001 vdb-entryx_refsource_XF
- https://github.com/advisories/GHSA-6476-g47x-h3c7 Advisory
- https://github.com/pediapress/pyfribidi/commit/d2860c655357975e7b32d84e6b45e98f0dcecd7a x_refsource_CONFIRM
- https://github.com/pediapress/pyfribidi/issues/2
- https://github.com/pediapress/pyfribidi/issues/2%29: x_refsource_CONFIRM
- https://github.com/pypa/advisory-database/tree/main/vulns/pyfribidi/PYSEC-2012-11.yaml
- https://nvd.nist.gov/vuln/detail/CVE-2012-1176
- https://web.archive.org/web/20200228170815/http://www.securityfocus.com/bid/52451
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner redhat
Published Aug 26, 2012
Updated Aug 6, 2024
Reserved Feb 14, 2012
Link CVE-2012-1176
CISA Vulnrichment
GHSA-6476-G47X-H3C7 Updated n/a