CVE-2020-21817 Null dereference in n/a
A null pointer dereference in GNU LibreDWG allows attackers to cause a denial of service via crafted input.
- 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-2020-21817?
CVE-2020-21817 is a medium-severity 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 null pointer dereference issue exists in GNU LibreDWG 0.10.2641 via htmlescape ../../programs/escape.c:29. which causes a denial of service (application crash).
Weakness: CWE-476
Which versions are affected by CVE-2020-21817?
It affects 1 product.
Products include Gnu Libredwg.
How do I fix CVE-2020-21817?
No fix has been published for CVE-2020-21817 yet. Limit exposure of the affected software until one is available.
Is CVE-2020-21817 being exploited?
There is no known exploitation of CVE-2020-21817 in the wild and no public exploit code.
Other vulnerabilities in Gnu Libredwg
Sources
Also known as GHSA-j35m-3732-37hp.