CVE-2020-6621 Memory corruption in n/a
A heap-based buffer over-read in the stb_truetype library allows attackers to cause denial of service or disclose sensitive memory contents.
- 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-2020-6621?
CVE-2020-6621 is a high-severity memory corruption vulnerability in n/a, published on 8 Jan 2020. 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
stb stb_truetype.h through 1.22 has a heap-based buffer over-read in ttUSHORT.
Weakness: CWE-125
Which versions are affected by CVE-2020-6621?
It affects 1 product.
Products include Nothings Stb Truetype.h.
How do I fix CVE-2020-6621?
No fix has been published for CVE-2020-6621 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-2020-6621 being exploited?
There is no known exploitation of CVE-2020-6621 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-4pw6-3g9g-fxcr, UBUNTU-CVE-2020-6621.