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Debian 10: DLA-3829-2 Critical: Sendmail Fix for SMTP Smuggling

debian lts
Calendar Grey June 20, 2024
Dist Debian Esm H88
Mitigations for sendmail weakness CVE-2023-51765 are incorporated in Debian LTS DLA-3829-2. It is advisable to upgrade for enhanced security.
Fixing CVE-2023-51765 (smtp smuggling) requires to reject email that include NUL bytes, in some configuration
Topics%20covered

Topics Covered

security advisory debian sendmail security fix smtp smuggling

Summary

Previous security version of sendmail, by default, does not
reject email that include NUL bytes.

For Debian 10 buster, this problem has been fixed in version
8.15.2-14~deb10u3.

We recommend that you upgrade your sendmail packages.

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

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


Severity
critical
Lowest
Low
Medium
High
Critical

Package: sendmail
Version: 8.15.2-14~deb10u3

Topics%20covered

Topics Covered

security advisory debian sendmail security fix smtp smuggling

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