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Debian LTS Advisory DLA-2890-1                [email protected]
https://www.debian.org/lts/security/                    Thorsten Alteholz
January 21, 2022                              https://wiki.debian.org/LTS
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Package        : libspf2
Version        : 1.2.10-7+deb9u2
CVE ID         : CVE-2021-33912 CVE-2021-33913

Two issues have been found in libspf2, a library for validating mail 
senders with SPF.
Both issues are related to heap-based buffer overflows.

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

We recommend that you upgrade your libspf2 packages.

For the detailed security status of libspf2 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: https://wiki.debian.org/LTS