Protect yourself against future threats.
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AUSCERT External Security Bulletin Redistribution
ESB-2021.3122
sssd security update
16 September 2021
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AusCERT Security Bulletin Summary
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Product: sssd
Publisher: Debian
Operating System: Debian GNU/Linux
Impact/Access: Root Compromise -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2021-3621
Reference: ESB-2021.2953
ESB-2021.2899
Original Bulletin:
https://lists.debian.org/debian-lts-announce/2021/09/msg00006.html
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Debian LTS Advisory DLA-2758-1 debian-lts@lists.debian.org
https://www.debian.org/lts/security/ Anton Gladky
September 15, 2021 https://wiki.debian.org/LTS
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Package : sssd
Version : 1.15.0-3+deb9u2
CVE ID : CVE-2021-3621
One security issue has been discovered in sssd.
The sssctl command was vulnerable to shell command injection via the logs-fetch
and cache-expire subcommands. This flaw allows an attacker to trick the root
user into running a specially crafted sssctl command, such as via sudo, to gain
root access. The highest threat from this vulnerability is to confidentiality,
integrity, as well as system availability.
For Debian 9 stretch, this problem has been fixed in version
1.15.0-3+deb9u2.
We recommend that you upgrade your sssd packages.
For the detailed security status of sssd please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/sssd
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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