CVE-2012-1176 json
PyFriBidi Buffer overflow in the fribidi_utf8_to_unicode function
published 2012-08-26 14 y ago modified 2026-06-16 4 mo ago also GHSA-6476-g47x-h3c7 , PYSEC-2012-11 , EUVD-2012-0027
- cvss
- 7.5
- version 3.1, GitHub
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 2.7%
- EPSS 2.7% chance of exploitation in 30 days, percentile 85%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- pypi pyfribidi 0.11.0
- pyfribidi Debian 14, Debian 13, Debian 12 0.11.0-1
debian advisories DEBIAN-CVE-2012-1176
Vendor advisories
What the vendors themselves say about their products: affected, fixed or not affected, and what to do.
red hat product security vex CVE-2012-1176 updated cvss 1.9
pyfribidi: buffer overflow when handling 4-byte utf-8 sequences
-
Red Hat All currently supported Red Hat productsnot affected: vulnerable code not present
Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf
Exploit prediction
2.65% chance of exploitation in the next 30 days, higher than 85% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:N/I:N/A:P |
| GitHub | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| pypi | pyfribidi | <0.11.0 |
0.11.0 |
Classification
- Weakness
-
- CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
References
-
github.com
/pediapress/pyfribidi/commit/d2860c655357975e7b32d84e6b45e98f0dcecd7a
web, patch
-
lists.fedoraproject.org
/pipermail/package-announce/2012-March/076038.html
vendor-advisory, web
-
lists.fedoraproject.org
/pipermail/package-announce/2012-March/075293.html
vendor-advisory, web
-
lists.fedoraproject.org
/pipermail/package-announce/2012-March/076053.html
vendor-advisory, web
-
openwall.com
/lists/oss-security/2012/03/14/9
mailing-list, web
-
exchange.xforce.ibmcloud.com
/vulnerabilities/74001
vdb-entry, web
-
groups.google.com
/group/linux.debian.bugs.dist/browse_thread/thread/aacd036037217998/8d095f85f3665bff?lnk=raot
web
-
openwall.com
/lists/oss-security/2012/03/14/4
mailing-list, web
-
bugs.debian.org
/cgi-bin/bugreport.cgi?bug=663189
web
-
bugzilla.redhat.com
/show_bug.cgi?id=801896
web, report
-
bugzilla.wikimedia.org
/show_bug.cgi?id=35055
web, report
-
securityfocus.com
/bid/52451
vdb-entry, web
-
github.com
/pediapress/pyfribidi/issues/2%29:
web, report
-
nvd.nist.gov
/vuln/detail/CVE-2012-1176
advisory
-
github.com
/pediapress/pyfribidi/issues/2
web
-
github.com
/pediapress/pyfribidi
package
-
github.com
/pypa/advisory-database/tree/main/vulns/pyfribidi/PYSEC-2012-11.yaml
web
-
web.archive.org
/web/20200228170815/http://www.securityfocus.com/bid/52451
web
-
github.com
/advisories/GHSA-6476-g47x-h3c7
advisory
Sources
- CVE List CVE-2012-1176
- GitHub Advisory GHSA-6476-g47x-h3c7
- NVD CVE-2012-1176
- OSV PYSEC-2012-11
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.