CVE-2020-18776 Denial of service in n/a
An attacker can cause a denial of service via a crafted file due to a segmentation fault in the Libav media library.
- 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-2020-18776?
CVE-2020-18776 is a medium-severity denial of service vulnerability in Libav Libav, published on 23 Aug 2021. 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
In Libav 12.3, there is a segmentation fault in vc1_decode_b_mb_intfr in vc1_block.c that allows an attacker to cause denial-of-service via a crafted file.
Weakness: CWE-125
Which versions are affected by CVE-2020-18776?
It affects 1 product.
Products include Libav Libav.
How do I fix CVE-2020-18776?
No fix has been published for CVE-2020-18776 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-2020-18776 being exploited?
There is no known exploitation of CVE-2020-18776 in the wild and no public exploit code.
Other vulnerabilities in Libav Libav
Sources
Also known as GHSA-2wm2-q986-vfw5, UBUNTU-CVE-2020-18776.