CVE-2020-35511 Memory corruption in pngcheck
A global buffer overflow in pngcheck allows attackers to execute arbitrary code or cause denial of service via a crafted PNG file.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2020-35511?
CVE-2020-35511 is a high-severity memory corruption vulnerability in Debian Debian Linux, published on 23 Aug 2022. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
A global buffer overflow was discovered in pngcheck function in pngcheck-2.4.0(5 patches applied) via a crafted png file.
Which versions are affected by CVE-2020-35511?
It affects 2 products.
Linux distribution packages (2)
pngcheck SUSE:Package Hub 15 SP3 | All versions | 3.0.3-bp153.3.3.1 |
pngcheck openSUSE:Leap 15.3 | All versions | 3.0.3-bp153.3.3.1 |
Products include Debian Debian Linux, Libpng Pngcheck.
How do I fix CVE-2020-35511?
Apply the vendor's patch.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2020-35511 being exploited?
There is no known exploitation of CVE-2020-35511 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as DEBIAN-CVE-2020-35511, DLA-3238-1, DSA-5300-1, GHSA-4p54-36pq-7qrc, UBUNTU-CVE-2020-35511, openSUSE-SU-2022:10142-1.