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Red Hat: CVE-2022-45873: deadlock in systemd-coredump via a crash with a long backtrace (Multiple Advisories)

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Red Hat: CVE-2022-45873: deadlock in systemd-coredump via a crash with a long backtrace (Multiple Advisories)

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
11/23/2022
Created
03/02/2023
Added
03/01/2023
Modified
12/15/2023

Description

systemd 250 and 251 allows local users to achieve a systemd-coredump deadlock by triggering a crash that has a long backtrace. This occurs in parse_elf_object in shared/elf-util.c. The exploitation methodology is to crash a binary calling the same function recursively, and put it in a deeply nested directory to make its backtrace large enough to cause the deadlock. This must be done 16 times when MaxConnections=16 is set for the systemd/units/systemd-coredump.socket file.

Solution(s)

  • redhat-upgrade-systemd
  • redhat-upgrade-systemd-container
  • redhat-upgrade-systemd-container-debuginfo
  • redhat-upgrade-systemd-debuginfo
  • redhat-upgrade-systemd-debugsource
  • redhat-upgrade-systemd-devel
  • redhat-upgrade-systemd-devel-debuginfo
  • redhat-upgrade-systemd-journal-remote
  • redhat-upgrade-systemd-journal-remote-debuginfo
  • redhat-upgrade-systemd-libs
  • redhat-upgrade-systemd-libs-debuginfo
  • redhat-upgrade-systemd-oomd
  • redhat-upgrade-systemd-oomd-debuginfo
  • redhat-upgrade-systemd-pam
  • redhat-upgrade-systemd-pam-debuginfo
  • redhat-upgrade-systemd-resolved
  • redhat-upgrade-systemd-resolved-debuginfo
  • redhat-upgrade-systemd-rpm-macros
  • redhat-upgrade-systemd-standalone-sysusers-debuginfo
  • redhat-upgrade-systemd-standalone-tmpfiles-debuginfo
  • redhat-upgrade-systemd-udev
  • redhat-upgrade-systemd-udev-debuginfo

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