Ubuntu Security Notice 6182-1 - It was discovered that pngcheck incorrectly handled certain inputs. If a user or an automated system were tricked into opening a specially crafted input file, a remote attacker could possibly use this issue to cause a denial of service.
36d4d487593b3247a8408868b62fd272f8b8ba69f8442f9e384a1610e227a0fa
==========================================================================
Ubuntu Security Notice USN-6182-1
June 21, 2023
pngcheck vulnerabilities
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS (Available with Ubuntu Pro)
- Ubuntu 16.04 LTS (Available with Ubuntu Pro)
Summary:
Several security issues were fixed in pngcheck.
Software Description:
- pngcheck: Verifies the integrity of PNG, JNG and MNG files
Details:
It was discovered that pngcheck incorrectly handled certain inputs. If a
user or an automated system were tricked into opening a specially crafted
input file, a remote attacker could possibly use this issue to cause a
denial of service.
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 20.04 LTS:
pngcheck 2.3.0-7ubuntu0.20.04.1
Ubuntu 18.04 LTS (Available with Ubuntu Pro):
pngcheck 2.3.0-7ubuntu0.18.04.1~esm1
Ubuntu 16.04 LTS (Available with Ubuntu Pro):
pngcheck 2.3.0-7ubuntu0.16.04.1~esm1
In general, a standard system update will make all the necessary changes.
References:
https://ubuntu.com/security/notices/USN-6182-1
CVE-2020-27818, CVE-2020-35511
Package Information:
https://launchpad.net/ubuntu/+source/pngcheck/2.3.0-7ubuntu0.20.04.1