CVE-2012-1176 PyFriBidi Buffer overflow in the fribidi_utf8_to_unicode function
Remote attackers can crash applications using PyFriBidi by sending a malformed 4-byte UTF-8 sequence, causing a buffer overflow.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2012-1176?
CVE-2012-1176 is a medium-severity memory corruption vulnerability in n/a, published on 26 Aug 2012. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-119
Which versions are affected by CVE-2012-1176?
3 open source packages ship an affected version, including pyfribidi. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
pyfribidi PyPI | All versions | 0.11.0 |
pyfribidi PyPI | All versions | 0.11.0 |
pyfribidi PyPI | All versions | 0.11.0 |
Products include Fribidi Pyfribidi.
How do I fix CVE-2012-1176?
Upgrade pyfribidi to 0.11.0 or later.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2012-1176 being exploited?
There is no known exploitation of CVE-2012-1176 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2012-1176, GHSA-6476-g47x-h3c7, PYSEC-2012-11.