CVE-2020-21831 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-2020-21831?
CVE-2020-21831 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 heap based buffer overflow vulnerability exists in GNU LibreDWG 0.10 via read_2004_section_handles ../../src/decode.c:2637.
Weakness: CWE-787
Which versions are affected by CVE-2020-21831?
It affects 1 product.
Products include Gnu Libredwg.
How do I fix CVE-2020-21831?
No fix has been published for CVE-2020-21831 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-2020-21831 being exploited?
There is no known exploitation of CVE-2020-21831 in the wild and no public exploit code.
Other vulnerabilities in Gnu Libredwg
Sources
Also known as GHSA-rx8r-92r7-6wg5.