ELA-1811-1 unzip security update

multiple vulnerabilities

2026-08-17
Packageunzip
Version6.0-21+deb9u4 (stretch), 6.0-23+deb10u4 (buster)


Akhil Koul discovered a vulnerability in the Info-ZIP unzip program which could result in the execution of arbitrary code if a specially crafted file is processed.

In addition to this vulnerability, two non-security crashes (#1142904 and #1142905) have been fixed.



For Debian 10 buster, these problems have been fixed in version 6.0-23+deb10u4.

For Debian 9 stretch, these problems have been fixed in version 6.0-21+deb9u4.

We recommend that you upgrade your unzip packages.

Further information about Extended LTS security advisories can be found in the dedicated section of our website.