CVE-2017-12378 Denial of service in ClamAV AntiVirus software versions 0.99.2 and prior
Remote attackers can cause a denial of service in ClamAV by sending malicious .tar files that trigger a buffer over-read during scanning.
- 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-2017-12378?
CVE-2017-12378 is a medium-severity denial of service vulnerability in Clamav Clamav, published on 26 Jan 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
ClamAV AntiVirus software versions 0.99.2 and prior contain a vulnerability that could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to improper input validation checking mechanisms of .tar (Tape Archive) files sent to an affected device. A successful exploit could cause a checksum buffer over-read condition when ClamAV scans the malicious .tar file, potentially allowing the attacker to cause a DoS condition on the affected device.
Weakness: CWE-125
Which versions are affected by CVE-2017-12378?
It affects 2 products.
Products include Clamav Clamav, Debian Debian Linux.
How do I fix CVE-2017-12378?
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-2017-12378 being exploited?
There is no known exploitation of CVE-2017-12378 in the wild and no public exploit code.
Other vulnerabilities in Clamav Clamav
Sources
Also known as ALPINE-CVE-2017-12378, CLEANSTART-2026-JS06286, DEBIAN-CVE-2017-12378, GHSA-rjvq-jj6m-jqr2, UBUNTU-CVE-2017-12378.