CVE-2018-16643 Denial of service in n/a
Remote attackers can cause a denial of service in ImageMagick by submitting crafted image files that exploit unchecked return values in image processing functions.
- 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-2018-16643?
CVE-2018-16643 is a medium-severity denial of service vulnerability in Canonical Ubuntu Linux, published on 6 Sep 2018. 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
The functions ReadDCMImage in coders/dcm.c, ReadPWPImage in coders/pwp.c, ReadCALSImage in coders/cals.c, and ReadPICTImage in coders/pict.c in ImageMagick 7.0.8-4 do not check the return value of the fputc function, which allows remote attackers to cause a denial of service via a crafted image file.
Weakness: CWE-252
Which versions are affected by CVE-2018-16643?
It affects 3 products.
Products include Canonical Ubuntu Linux, Debian Debian Linux, Imagemagick Imagemagick.
How do I fix CVE-2018-16643?
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-2018-16643 being exploited?
There is no known exploitation of CVE-2018-16643 in the wild and no public exploit code.
Other vulnerabilities in Canonical Ubuntu Linux
Sources
Also known as DEBIAN-CVE-2018-16643, GHSA-wqhj-p6jq-8958, UBUNTU-CVE-2018-16643.