CVE-2020-21816 Memory corruption in n/a
A heap-based buffer overflow in GNU LibreDWG allows attackers to execute arbitrary code or cause denial of service via crafted DWG files.
- 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-2020-21816?
CVE-2020-21816 is a high-severity memory corruption vulnerability in Gnu Libredwg, published on 17 May 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
A heab based buffer overflow issue exists in GNU LibreDWG 0.10.2641 via htmlescape ../../programs/escape.c:46.
Weakness: CWE-787
Which versions are affected by CVE-2020-21816?
It affects 1 product.
Products include Gnu Libredwg.
How do I fix CVE-2020-21816?
No fix has been published for CVE-2020-21816 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-2020-21816 being exploited?
There is no known exploitation of CVE-2020-21816 in the wild and no public exploit code.
Other vulnerabilities in Gnu Libredwg
Sources
Also known as GHSA-4qp5-qxpf-77vm.