CVE-2020-36023 Denial of service in n/a
Remote attackers can cause a denial of service in the poppler library by providing a crafted PDF file that triggers an infinite loop.
- 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
- Available
What is CVE-2020-36023?
CVE-2020-36023 is a medium-severity denial of service vulnerability in Freedesktop Poppler, published on 11 Aug 2023. 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 freedesktop poppler version 20.12.1, allows remote attackers to cause a denial of service (DoS) via crafted .pdf file to FoFiType1C::cvtGlyph function.
Weakness: CWE-835
Which versions are affected by CVE-2020-36023?
It affects 1 product.
Products include Freedesktop Poppler.
How do I fix CVE-2020-36023?
Upgrade to a fixed version.
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-2020-36023 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2020-36023 exists.
Other vulnerabilities in Freedesktop Poppler
Sources
Also known as DEBIAN-CVE-2020-36023, GHSA-xrv4-xm8w-pm47, UBUNTU-CVE-2020-36023.