Home / mailings

PDF

[USN-9082-1] pngquant vulnerability

Posted on 13 November 2026
Ubuntu Security

==========================================================================Ubuntu Security Notice USN-9082-1
November 12, 2026

pngquant vulnerability
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 16.04 LTS

Summary:

pngquant could be made to crash or run programs as your login if it opened
a specially crafted file.

Software Description:
- pngquant: PNG (Portable Network Graphics) image optimising utility

Details:

Choi Jaeseung discovered that pngquant incorrectly handled certain PNG
images, leading to a buffer overflow. An attacker could possibly use this
issue to cause pngquant to crash or execute arbitrary code.

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 16.04 LTS
pngquant 2.5.0-1ubuntu0.1~esm1
Available with Ubuntu Pro

In general, a standard system update will make all the necessary changes.

References:
https://ubuntu.com/security/notices/USN-9082-1
CVE-2016-5735

--===============5694713958669263971==Content-Type: application/pgp-signature; name="signature.asc"
Content-Description: OpenPGP digital signature

 

TOP