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Debian LTS Advisory DLA-2650-1                [email protected]
https://www.debian.org/lts/security/                    Thorsten Alteholz
May 05, 2021                                  https://wiki.debian.org/LTS
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Package        : exim4
Version        : 4.89-2+deb9u8
CVE ID         : CVE-2020-28007 CVE-2020-28008 CVE-2020-28009
                  CVE-2020-28011 CVE-2020-28012 CVE-2020-28013
                  CVE-2020-28014 CVE-2020-28015 CVE-2020-28017
                  CVE-2020-28019 CVE-2020-28020 CVE-2020-28021
                  CVE-2020-28022 CVE-2020-28023 CVE-2020-28024
                  CVE-2020-28025 CVE-2020-28026

The Qualys Research Labs reported several vulnerabilities in Exim, a mail 
transport agent, which could result in local privilege escalation and 
remote code execution.

Details can be found in the Qualys advisory at 

For Debian 9 stretch, these problems have been fixed in version

We recommend that you upgrade your exim4 packages.

For the detailed security status of exim4 please refer to its security 
tracker page at: https://security-tracker.debian.org/tracker/exim4

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