CVE-2018-6381 Memory corruption in n/a
Attackers can cause a segmentation fault and denial of service in applications using ZZIPlib by triggering invalid memory access during file reading.
- 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-2018-6381?
CVE-2018-6381 is a medium-severity memory corruption vulnerability in Canonical Ubuntu Linux, published on 29 Jan 2018. 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
In ZZIPlib 0.13.67, 0.13.66, 0.13.65, 0.13.64, 0.13.63, 0.13.62, 0.13.61, 0.13.60, 0.13.59, 0.13.58, 0.13.57 and 0.13.56 there is a segmentation fault caused by invalid memory access in the zzip_disk_fread function (zzip/mmapped.c) because the size variable is not validated against the amount of file->stored data.
Weakness: CWE-119
Which versions are affected by CVE-2018-6381?
It affects 2 products.
Products include Canonical Ubuntu Linux, Gdraheim Zziplib.
How do I fix CVE-2018-6381?
Upgrade to a fixed version.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2018-6381 being exploited?
There is no known exploitation of CVE-2018-6381 in the wild and no public exploit code.
Other vulnerabilities in Canonical Ubuntu Linux
Sources
Also known as DEBIAN-CVE-2018-6381, GHSA-pc5j-427r-h2x3, UBUNTU-CVE-2018-6381.