Deadlock The advisory has been revoked - it doesn't affect any version of package systemd Open this link in a new tab
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Test your applications- Snyk ID SNYK-CENTOS8-SYSTEMD-3150592
- published 29 Nov 2022
- disclosed 18 Oct 2022
Introduced: 18 Oct 2022
CVE-2022-45873 Open this link in a new tabAmendment
The Centos
security team deemed this advisory irrelevant for Centos:8
.
NVD Description
Note: Versions mentioned in the description apply only to the upstream systemd
package and not the systemd
package as distributed by Centos
.
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.
References
- https://access.redhat.com/security/cve/CVE-2022-45873
- https://access.redhat.com/errata/RHSA-2023:0954
- https://github.com/systemd/systemd/commit/076b807be472630692c5348c60d0c2b7b28ad437
- https://github.com/systemd/systemd/pull/25055#issuecomment-1313733553
- https://github.com/systemd/systemd/pull/24853#issuecomment-1326561497
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MS5N5SLYAHKENLAJWYBDKU55ICU3SVZF/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MS5N5SLYAHKENLAJWYBDKU55ICU3SVZF/