CVE-2018-15378 Clam AntiVirus unmew11() Denial of Service Vulnerability
An attacker can cause a denial of service in ClamAV by submitting a specially crafted EXE file that triggers an invalid memory read in the MEW unpacker.
- 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-2018-15378?
CVE-2018-15378 is a medium-severity denial of service vulnerability in Canonical Ubuntu Linux, published on 15 Oct 2018. 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
A vulnerability in ClamAV versions prior to 0.100.2 could allow an attacker to cause a denial of service (DoS) condition. The vulnerability is due to an error related to the MEW unpacker within the "unmew11()" function (libclamav/mew.c), which can be exploited to trigger an invalid read memory access via a specially crafted EXE file.
Weakness: CWE-125
Which versions are affected by CVE-2018-15378?
It affects 3 products.
Products include Canonical Ubuntu Linux, Clamav Clamav, Debian Debian Linux.
How do I fix CVE-2018-15378?
Upgrade to a fixed version.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2018-15378 being exploited?
There is no known exploitation of CVE-2018-15378 in the wild and no public exploit code.
Other vulnerabilities in Canonical Ubuntu Linux
Sources
Also known as ALPINE-CVE-2018-15378, CLEANSTART-2026-UJ35134, DEBIAN-CVE-2018-15378, DLA-1553-1, GHSA-f539-qjx8-227f, MGASA-2018-0406 and 2 more.