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High ALAS2023-2023-126 2 CVEs

Important: device-mapper-multipath security update (Amazon Linux 2023)

Published Mar 7, 2023 · Updated Mar 8, 2023

Summary

Package updates are available for Amazon Linux 2023 that fix the following vulnerabilities: CVE-2022-41973: A vulnerability was found in the device-mapper-multipath. The device-mapper-multipath allows local users to obtain root access, in conjunction with CVE-2022-41974. Local users that are able to access /dev/shm can change symlinks in multipathd due to incorrect symlink handling, which may lead to controlled file writes outside of the /dev/shm directory. This could be used indirectly for local privilege escalation to root. CVE-2022-3787: A vulnerability was found in the device-mapper-multipath. The device-mapper-multipath allows local users to obtain root access, exploited alone or in conjunction with CVE-2022-41973. Local users that are able to write to UNIX domain sockets can bypass access controls and manipulate the multipath setup. This issue occurs because an attacker can repeat a keyword, which is mishandled when arithmetic ADD is used instead of bitwise OR. This could lead to local privilege escalation to root.

Fixed packages 11

ReleasePackageFixed in
Amazon Linux · 2023 device-mapper-multipath 0:0.8.7-16.amzn2023.0.1
Amazon Linux · 2023 device-mapper-multipath-debuginfo 0:0.8.7-16.amzn2023.0.1
Amazon Linux · 2023 device-mapper-multipath-debugsource 0:0.8.7-16.amzn2023.0.1
Amazon Linux · 2023 device-mapper-multipath-devel 0:0.8.7-16.amzn2023.0.1
Amazon Linux · 2023 device-mapper-multipath-libs 0:0.8.7-16.amzn2023.0.1
Amazon Linux · 2023 device-mapper-multipath-libs-debuginfo 0:0.8.7-16.amzn2023.0.1
Amazon Linux · 2023 kpartx 0:0.8.7-16.amzn2023.0.1
Amazon Linux · 2023 kpartx-debuginfo 0:0.8.7-16.amzn2023.0.1
Amazon Linux · 2023 libdmmp 0:0.8.7-16.amzn2023.0.1
Amazon Linux · 2023 libdmmp-debuginfo 0:0.8.7-16.amzn2023.0.1
Amazon Linux · 2023 libdmmp-devel 0:0.8.7-16.amzn2023.0.1

Vulnerabilities 2

References

  • web
    https://alas.aws.amazon.com/cve/html/CVE-2022-3787.html
  • web
    https://alas.aws.amazon.com/cve/html/CVE-2022-41973.html