CVEvulnerability

CVE-2021-43411

7.5 HIGH Published 2021-11-07 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2021-11-07
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.5 HIGH — CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0 ([email protected])
8.5 HIGH — AV:N/AC:M/Au:S/C:C/I:C/A:C
Weaknesses
CWE-362

Description

An issue was discovered in GNU Hurd before 0.9 20210404-9. When trying to exec a setuid executable, there's a window of time when the process already has the new privileges, but still refers to the old task and is accessible through the old process port. This can be exploited to get full root access.

Affected configurations

• gnu hurd (< 0.9.20210404-9)

Related

Weakness · CWE (1)

  • CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization weakness

References