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CVE search · CVE-2026-58093

CVE-2026-58093

high 7.0

The TIOCSCTTY ioctl handler drops the tty lock in order to acquire the process tree lock. After reacquiring the tty lock, the handler did not revalidate the state of the terminal, and could proceed to link a terminal that was concurrently being destroyed to the calling process' session. An unprivileged local user can exploit this race condition to escalate privileges.

Open in the NVD CVE.org JSON

Details

Status
Analyzed
Published
Last changed
Source
secteam@freebsd.org
Weakness
CWE-362, CWE-416

Severity

VersionScoreVectorSource
CVSS 3.1 high 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H 134c704f-9b21-4f2e-91b3-4a467353bcc0Secondary

Affected products

Vendor and product from the NVD’s CPE applicability statements. Versions and conditions are on the NVD’s page.

References