Debian Security Advisory

DLA-3238-1 pngcheck -- LTS security update

Date Reported:
13 Dec 2022
Affected Packages:
Security database references:
In the Debian bugtracking system: Bug 1021278.
In Mitre's CVE dictionary: CVE-2020-35511.
More information:

Multiple security issues were discovered in pngcheck, a tool to verify the integrity of PNG, JNG and MNG files, which could potentially result in the execution of arbitrary code.

  • CVE-2020-35511

    A global buffer overflow was discovered in pngcheck function in pngcheck-2.4.0 (5 patches applied) via a crafted png file.

    For Debian 10 buster, these problems have been fixed in version 3.0.3-1~deb10u2.

    We recommend that you upgrade your pngcheck packages.

    For the detailed security status of pngcheck please refer to its security tracker page at:

    Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: