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Debian LTS: Security Advisory for pacemaker (DLA-2519-1)

Information

Severity

Severity

Critical

Family

Family

Debian Local Security Checks

CVSSv2 Base

CVSSv2 Base

9.0

CVSSv2 Vector

CVSSv2 Vector

AV:N/AC:L/Au:S/C:C/I:C/A:C

Solution Type

Solution Type

Vendor Patch

Created

Created

1 year ago

Modified

Modified

1 year ago

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Summary

The remote host is missing an update for the 'pacemaker' package(s) announced via the DLA-2519-1 advisory.

Insight

Insight

Several security vulnerabilities were addressed in pacemaker, a cluster resource manager. CVE-2018-16877 A flaw was found in the way pacemaker's client-server authentication was implemented. A local attacker could use this flaw, and combine it with other IPC weaknesses, to achieve local privilege escalation. CVE-2018-16878 An insufficient verification inflicted preference of uncontrolled processes can lead to denial-of-service. CVE-2020-25654 An ACL bypass flaw was found in pacemaker. 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.

Affected Software

Affected Software

'pacemaker' package(s) on Debian Linux.

Detection Method

Detection Method

Checks if a vulnerable package version is present on the target host.

Solution

Solution

For Debian 9 stretch, these problems have been fixed in version 1.1.24-0+deb9u1. We recommend that you upgrade your pacemaker packages.

Common Vulnerabilities and Exposures (CVE)

References

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multipass launch -c 2 -m 6G -d 20G -n mageni 20.04 && multipass shell mageni

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curl -sL https://www.mageni.net/installation | sudo bash

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