CVE-2026-29111
MEDIUM
5,5
Source: [email protected]
Attack Vector: local
Attack Complexity: low
Privileges Required: low
User Interaction: none
Scope: unchanged
Confidentiality: none
Integrity: none
Availability: high
Description
AI Translation Available
systemd, a system and service manager, (as PID 1) hits an assert and freezes execution when an unprivileged IPC API call is made with spurious data. On version v249 and older the effect is not an assert, but stack overwriting, with the attacker controlled content. From version v250 and newer this is not possible as the safety check causes an assert instead. This IPC call was added in v239, so versions older than that are not affected. Versions 260-rc1, 259.2, 258.5, and 257.11 contain patches. No known workarounds are available.
269
Improper Privilege Management
DraftCommon Consequences
Security Scopes Affected:
Access Control
Potential Impacts:
Gain Privileges Or Assume Identity
Applicable Platforms
All platforms may be affected
https://github.com/systemd/systemd/commit/1d22f706bd04f45f8422e17fbde3f56ece177…
https://github.com/systemd/systemd/commit/20021e7686426052e3a7505425d7e12085feb…
https://github.com/systemd/systemd/commit/21167006574d6b83813c7596759b474f56562…
https://github.com/systemd/systemd/commit/3cee294fe8cf4fa0eff933ab21416d099942c…
https://github.com/systemd/systemd/commit/42aee39107fbdd7db1ccd402a2151822b2805…
https://github.com/systemd/systemd/commit/54588d2dedff54bfb6036670820650e4ea746…
https://github.com/systemd/systemd/commit/7ac3220213690e8a8d6d2a6e81e43bd1dce01…
https://github.com/systemd/systemd/commit/80acea4ef80a4bb78560ed970c34952299b89…
https://github.com/systemd/systemd/commit/b5fd14693057e5f2c9b4a49603be64ec3608f…
https://github.com/systemd/systemd/commit/efa6ba2ab625aaa160ac435a09e6482fc63bd…
https://github.com/systemd/systemd/security/advisories/GHSA-gx6q-6f99-m764