CVE-2019-9720 Memory corruption in n/a
Attackers can execute arbitrary code or cause denial of service via a crafted Matroska video file exploiting a stack buffer overflow in Libav.
- 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-2019-9720?
CVE-2019-9720 is a medium-severity memory corruption vulnerability in Libav Libav, published on 19 Sep 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 stack-based buffer overflow in the subtitle decoder in Libav 12.3 allows attackers to corrupt the stack via a crafted video file in Matroska format, because srt_to_ass in libavcodec/srtdec.c misuses snprintf.
Weakness: CWE-787
Which versions are affected by CVE-2019-9720?
It affects 1 product.
Products include Libav Libav.
How do I fix CVE-2019-9720?
No fix has been published for CVE-2019-9720 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2019-9720 being exploited?
There is no known exploitation of CVE-2019-9720 in the wild and no public exploit code.
Other vulnerabilities in Libav Libav
Sources
Also known as GHSA-9p94-wjcw-v5mm, UBUNTU-CVE-2019-9720.