CVE-2020-27758 Integer overflow in ImageMagick
An attacker can cause a denial of service in applications using ImageMagick by submitting a crafted file that triggers an integer overflow.
- 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-2020-27758?
CVE-2020-27758 is a low-severity vulnerability in Debian Debian Linux, published on 8 Dec 2020. 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 flaw was found in ImageMagick in coders/txt.c. An attacker who submits a crafted file that is processed by ImageMagick could trigger undefined behavior in the form of values outside the range of type `unsigned long long`. This would most likely lead to an impact to application availability, but could potentially cause other problems related to undefined behavior. This flaw affects ImageMagick versions prior to 7.0.8-68.
Weakness: CWE-190
Which versions are affected by CVE-2020-27758?
It affects 2 products.
Products include Debian Debian Linux, Imagemagick Imagemagick.
How do I fix CVE-2020-27758?
Upgrade to a fixed version.
Is CVE-2020-27758 being exploited?
There is no known exploitation of CVE-2020-27758 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as DEBIAN-CVE-2020-27758, GHSA-w7mw-fjhg-xrq2, JLSEC-2026-856, UBUNTU-CVE-2020-27758.