CVE-2020-18839 Memory corruption in n/a
A buffer overflow in the Poppler PDF library allows attackers to cause a denial of service via crafted PDF 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
- Available
What is CVE-2020-18839?
CVE-2020-18839 is a medium-severity memory corruption vulnerability in Freedesktop Poppler, published on 22 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
Buffer Overflow vulnerability in HtmlOutputDev::page in poppler 0.75.0 allows attackers to cause a denial of service.
Weakness: CWE-787
Which versions are affected by CVE-2020-18839?
It affects 1 product.
Products include Freedesktop Poppler.
How do I fix CVE-2020-18839?
Upgrade to a fixed version.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2020-18839 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2020-18839 exists.
Other vulnerabilities in Freedesktop Poppler
Sources
Also known as DEBIAN-CVE-2020-18839, GHSA-9qxr-688p-9w44.