Operating System:

[Debian]

Published:

04 December 2023

Protect yourself against future threats.

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2023.7239
                         opendkim security update
                              4 December 2023

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           opendkim
Publisher:         Debian
Operating System:  Debian GNU/Linux
Resolution:        Patch/Upgrade
CVE Names:         CVE-2022-48521  

Original Bulletin: 
   https://lists.debian.org/debian-lts-announce/2023/12/msg00002.html

Comment: CVSS (Max):  5.3 CVE-2022-48521 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N)
         CVSS Source: NIST
         Calculator:  https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

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Debian LTS Advisory DLA-3680-1                debian-lts@lists.debian.org
https://www.debian.org/lts/security/                         Tobias Frost
December 03, 2023                             https://wiki.debian.org/LTS
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Package        : opendkim
Version        : 2.11.0~alpha-12+deb10u1
CVE ID         : CVE-2022-48521
Debian Bug     : 1041107

An issue (CVE-2022-48521) was discovered in OpenDKIM through 2.10.3, and
2.11.x through 2.11.0-Beta2. It fails to keep track of ordinal numbers
when removing fake Authentication-Results header fields, which allows a
remote attacker to craft an e-mail message with a fake sender address
such that programs that rely on Authentication-Results from OpenDKIM
will treat the message as having a valid DKIM signature when in fact it
has none.

For Debian 10 buster, this problem has been fixed in version
2.11.0~alpha-12+deb10u1.

We recommend that you upgrade your opendkim packages.

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

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

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===========================================================================
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The University of Queensland
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Internet Email: auscert@auscert.org.au
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