CVE-2019-20911 Denial of service in n/a
Crafted DWG files cause a denial of service in GNU LibreDWG via an infinite loop in CRC calculation, affecting applications using this library.
- 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-2019-20911?
CVE-2019-20911 is a medium-severity denial of service vulnerability in Gnu Libredwg, published on 16 Jul 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
An issue was discovered in GNU LibreDWG through 0.9.3. Crafted input will lead to denial of service in bit_calc_CRC in bits.c, related to a for loop.
Weakness: CWE-835
Which versions are affected by CVE-2019-20911?
It affects 1 product.
Products include Gnu Libredwg.
How do I fix CVE-2019-20911?
No fix has been published for CVE-2019-20911 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2019-20911 being exploited?
There is no known exploitation of CVE-2019-20911 in the wild and no public exploit code.
Other vulnerabilities in Gnu Libredwg
Sources
Also known as GHSA-79wh-vc9g-6xpc.