CVE-2018-3979 Denial of service in Nouveau
A remote attacker can cause a denial of service by tricking a user into visiting a malicious website that exploits the Nouveau GPU driver.
- 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-2018-3979?
CVE-2018-3979 is a high-severity denial of service vulnerability in Canonical Ubuntu Linux, published on 1 Apr 2019. 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
A remote denial-of-service vulnerability exists in the way the Nouveau Display Driver (the default Ubuntu Nvidia display driver) handles GPU shader execution. A specially crafted pixel shader can cause remote denial-of-service issues. An attacker can provide a specially crafted website to trigger this vulnerability. This vulnerability can be triggered remotely after the user visits a malformed website. No further user interaction is required. Vulnerable versions include Ubuntu 18.04 LTS (linux 4.15.0-29-generic x86_64), Nouveau Display Driver NV117 (vermagic: 4.15.0-29-generic SMP mod_unload).
Weakness: CWE-400
Which versions are affected by CVE-2018-3979?
It affects 17 products.
Products include Canonical Ubuntu Linux, Nvidia Geforce Gtx 745 Firmware, Nvidia Geforce Gtx 750 Firmware, Nvidia Geforce Gtx 750 Ti Firmware, Nvidia Geforce Gtx 840m Firmware, Nvidia Geforce Gtx 845m Firmware and 11 more.
How do I fix CVE-2018-3979?
No fix has been published for CVE-2018-3979 yet. Limit exposure of the affected software until one is available.
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-2018-3979 being exploited?
There is no known exploitation of CVE-2018-3979 in the wild and no public exploit code.
Other vulnerabilities in Canonical Ubuntu Linux
Sources
Also known as DEBIAN-CVE-2018-3979, GHSA-m48r-fqqr-r9gc, UBUNTU-CVE-2018-3979.