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AUSCERT External Security Bulletin Redistribution
ESB-2020.4029.2
pacemaker security update
18 November 2020
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: pacemaker
Publisher: Debian
Operating System: Debian GNU/Linux
Impact/Access: Unauthorised Access -- Existing Account
Reduced Security -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2020-25654
Reference: ESB-2020.3754
ESB-2020.3745
ESB-2020.3721
Original Bulletin:
https://www.debian.org/lts/security/2020/dla-2447
https://lists.debian.org/debian-lts-announce/2020/11/msg00029.html
Comment: This bulletin contains two (2) Debian security advisories.
Revision History: November 18 2020: Vendor announced regression
November 12 2020: Initial Release
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Debian LTS Advisory DLA-2447-1 debian-lts@lists.debian.org
https://www.debian.org/lts/security/ Markus Koschany
November 11, 2020 https://wiki.debian.org/LTS
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Package : pacemaker
Version : 1.1.16-1+deb9u1
CVE ID : CVE-2020-25654
Debian Bug : 973254
An ACL bypass flaw was found in pacemaker, a cluster resource manager.
An attacker having a local account on the cluster and in the haclient group
could use IPC communication with various daemons directly to perform certain
tasks that they would be prevented by ACLs from doing if they went through
the configuration.
For Debian 9 stretch, this problem has been fixed in version
1.1.16-1+deb9u1.
We recommend that you upgrade your pacemaker packages.
For the detailed security status of pacemaker please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/pacemaker
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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Debian LTS Advisory DLA-2447-2 debian-lts@lists.debian.org
https://www.debian.org/lts/security/ Markus Koschany
November 17, 2020 https://wiki.debian.org/LTS
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Package : pacemaker
Version : 1.1.16-1+deb9u2
Debian Bug : 974563
The update of pacemaker released as DLA-2447-1 caused a regression when the
communication between the Corosync cluster engine and pacemaker takes place. A
permission problem prevents IPC requests between cluster nodes. The patch for
CVE-2020-25654 has been reverted until a better solution can be found.
For Debian 9 stretch, this problem has been fixed in version
1.1.16-1+deb9u2.
We recommend that you upgrade your pacemaker packages.
For the detailed security status of pacemaker please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/pacemaker
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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