Debian Security Advisory

DLA-2968-1 zlib -- LTS security update

Date Reported:
03 Apr 2022
Affected Packages:
Security database references:
In the Debian bugtracking system: Bug 1008265.
In Mitre's CVE dictionary: CVE-2018-25032.
More information:

One security issue has been found in a compression library zlib.

Danilo Ramos discovered that incorrect memory handling in zlib's deflate handling could result in denial of service or potentially the execution of arbitrary code if specially crafted input is processed.

For Debian 9 stretch, this problem has been fixed in version 1:1.2.8.dfsg-5+deb9u1.

We recommend that you upgrade your zlib packages.

For the detailed security status of zlib 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: