CVE-2021-31229 Memory corruption in n/a
An out-of-bounds write in ezXML allows attackers to execute arbitrary code or cause denial of service via crafted XML files.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2021-31229?
CVE-2021-31229 is a medium-severity memory corruption vulnerability in Debian Debian Linux, published on 15 Apr 2021. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
An issue was discovered in libezxml.a in ezXML 0.8.6. The function ezxml_internal_dtd() performs incorrect memory handling while parsing crafted XML files, which leads to an out-of-bounds write of a one byte constant.
Weakness: CWE-787
Which versions are affected by CVE-2021-31229?
It affects 2 products.
Products include Debian Debian Linux, Ezxml Project Ezxml.
How do I fix CVE-2021-31229?
Apply the vendor's patch.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2021-31229 being exploited?
There is no known exploitation of CVE-2021-31229 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as DEBIAN-CVE-2021-31229, GHSA-pq24-7v4g-2468, UBUNTU-CVE-2021-31229.