CVE-2018-14682 Integer overflow in n/a

High 8.8 Published 28 Jul 2018 Updated 5 Aug 2024

An off-by-one error in libmspack's CHM decompression allows attackers to cause denial of service or potentially execute code via crafted 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-2018-14682?

CVE-2018-14682 is a high-severity vulnerability in Canonical Ubuntu Linux, published on 28 Jul 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

An issue was discovered in mspack/chmd.c in libmspack before 0.7alpha. There is an off-by-one error in the TOLOWER() macro for CHM decompression.

Weakness: CWE-193

Which versions are affected by CVE-2018-14682?

It affects 8 products.

Products include Cabextract Libmspack, Cabextract Project Cabextract, Canonical Ubuntu Linux, Debian Debian Linux, Redhat Ansible Tower, Redhat Enterprise Linux Desktop and 2 more.

How do I fix CVE-2018-14682?

Upgrade to a fixed version.

Is CVE-2018-14682 being exploited?

There is no known exploitation of CVE-2018-14682 in the wild and no public exploit code.

All Canonical Ubuntu Linux vulnerabilities

Sources

Also known as ALPINE-CVE-2018-14682, CLEANSTART-2026-OL50443, DEBIAN-CVE-2018-14682, GHSA-cx83-c67h-h9gr, UBUNTU-CVE-2018-14682.