CVE-2020-27774 Integer overflow in ImageMagick
An attacker can cause a denial of service in ImageMagick by submitting a crafted file that triggers an integer overflow leading to undefined behavior.
- 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-2020-27774?
CVE-2020-27774 is a low-severity vulnerability in Debian Debian Linux, published on 4 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 MagickCore/statistic.c. An attacker who submits a crafted file that is processed by ImageMagick could trigger undefined behavior in the form of a too large shift for 64-bit type `ssize_t`. 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 7.0.9-0.
Weakness: CWE-190
Which versions are affected by CVE-2020-27774?
It affects 3 products.
Products include Debian Debian Linux, Imagemagick Imagemagick, Redhat Enterprise Linux.
How do I fix CVE-2020-27774?
Upgrade to a fixed version.
Is CVE-2020-27774 being exploited?
There is no known exploitation of CVE-2020-27774 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as DEBIAN-CVE-2020-27774, GHSA-7r3q-r8vw-83vp, JLSEC-2026-872, UBUNTU-CVE-2020-27774.