CVE-2018-25018 Memory corruption in n/a

High 7.8 Published 1 Jul 2021 Updated 5 Aug 2024

An out-of-bounds write in the UnRAR library allows attackers to execute arbitrary code or cause a denial of service via crafted RAR archives.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Local or same network only
Victim action needed: A user has to click or open something
Fix: Available

What is CVE-2018-25018?

CVE-2018-25018 is a high-severity memory corruption vulnerability in n/a, published on 1 Jul 2021. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

UnRAR 5.6.1.7 through 5.7.4 and 6.0.3 has an out-of-bounds write during a memcpy in QuickOpen::ReadRaw when called from QuickOpen::ReadNext.

Weakness: CWE-787

Which versions are affected by CVE-2018-25018?

It affects 1 product.

Products include Rarlab Unrar.

How do I fix CVE-2018-25018?

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-2018-25018 being exploited?

There is no known exploitation of CVE-2018-25018 in the wild and no public exploit code.

Sources

Also known as DEBIAN-CVE-2018-25018, GHSA-64hf-v92v-mrg5, UBUNTU-CVE-2018-25018.