CVE-2018-20451 Memory corruption in n/a

Medium 6.5 Published 25 Dec 2018 Updated 16 Sep 2024

Attackers can cause a denial of service via a crafted file due to a heap-based buffer over-read in the libdoc library.

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: None listed

What is CVE-2018-20451?

CVE-2018-20451 is a medium-severity memory corruption vulnerability in n/a, published on 25 Dec 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

The process_file function in reader.c in libdoc through 2017-10-23 has a heap-based buffer over-read that allows attackers to cause a denial of service (application crash) via a crafted file.

Weakness: CWE-125

Which versions are affected by CVE-2018-20451?

It affects 1 product.

Products include Libdoc Project Libdoc.

How do I fix CVE-2018-20451?

No fix has been published for CVE-2018-20451 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2018-20451 being exploited?

There is no known exploitation of CVE-2018-20451 in the wild and no public exploit code.

Sources

Also known as DEBIAN-CVE-2018-20451, GHSA-2wch-pp5g-pc57, UBUNTU-CVE-2018-20451.