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Gentoo Linux: CVE-2022-45873: systemd: Multiple Vulnerabilities

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Gentoo Linux: CVE-2022-45873: systemd: Multiple Vulnerabilities

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
11/23/2022
Created
05/06/2024
Added
05/06/2024
Modified
05/06/2024

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)

  • gentoo-linux-upgrade-sys-apps-systemd

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