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Amazon Linux AMI 2: CVE-2022-2526: Security patch for systemd (ALAS-2022-1854)

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Amazon Linux AMI 2: CVE-2022-2526: Security patch for systemd (ALAS-2022-1854)

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
09/09/2022
Created
10/12/2022
Added
10/11/2022
Modified
10/11/2022

Description

A use-after-free vulnerability was found in systemd. This issue occurs due to the on_stream_io() function and dns_stream_complete() function in 'resolved-dns-stream.c' not incrementing the reference counting for the DnsStream object. Therefore, other functions and callbacks called can dereference the DNSStream object, causing the use-after-free when the reference is still used later.

Solution(s)

  • amazon-linux-ami-2-upgrade-libgudev1
  • amazon-linux-ami-2-upgrade-libgudev1-devel
  • amazon-linux-ami-2-upgrade-systemd
  • amazon-linux-ami-2-upgrade-systemd-debuginfo
  • amazon-linux-ami-2-upgrade-systemd-devel
  • amazon-linux-ami-2-upgrade-systemd-journal-gateway
  • amazon-linux-ami-2-upgrade-systemd-libs
  • amazon-linux-ami-2-upgrade-systemd-networkd
  • amazon-linux-ami-2-upgrade-systemd-python
  • amazon-linux-ami-2-upgrade-systemd-resolved
  • amazon-linux-ami-2-upgrade-systemd-sysv

References

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