Resource exhaustion in systemd - CVE-2022-45873
Published: March 6, 2023
Vulnerability identifier: #VU72887
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2022-45873
CWE-ID: CWE-400
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Freedesktop.org
Affected software:
systemd
systemd
Detailed vulnerability description
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to a deadlock within the parse_elf_object() function in shared/elf-util.c. A local user can perform a denial of service (DoS) attack.
How to mitigate CVE-2022-45873
Install updates from vendor's website.
Sources
- 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/