Debian Security Advisory

DLA-2278-2 squid3 -- LTS security update

Date Reported:
13 Aug 2020
Affected Packages:
Security database references:
In the Debian bugtracking system: Bug 965012.
More information:

The update of squid3 released as DLA-2278-1 contained an incomplete fix for CVE-2019-12523 that prevented services which rely on the icap or ecap protocol to function properly. Updated squid3 packages are now available to correct this issue.

In addition the patch for CVE-2019-12529 was improved to use more code from Debian's cryptographic nettle library.

For Debian 9 stretch, this problem has been fixed in version 3.5.23-5+deb9u3.

We recommend that you upgrade your squid3 packages.

For the detailed security status of squid3 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: