CVE-2023-1295

Privilege escalation with IO_RING_OP_CLOSE in the Linux Kernel

Published Jun 28, 2023 CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
Description
A time-of-check to time-of-use issue exists in io_uring subsystem's IORING_OP_CLOSE operation in the Linux kernel's versions 5.6 - 5.11 (inclusive), which allows a local user to elevate their privileges to root. Introduced in b5dba59e0cf7e2cc4d3b3b1ac5fe81ddf21959eb, patched in 9eac1904d3364254d622bf2c771c4f85cd435fc2, backported to stable in 788d0824269bef539fe31a785b1517882eafed93.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2023-23560 A time-of-check to time-of-use issue exists in io_uring subsystem's IORING_OP_CLOSE operation in the Linux kernel's versions 5.6 - 5.11 (inclusive), which allows a local user to elevate their privileges to root. Introduced in b5dba59e0cf7e2cc4d3b3b1ac5fe81ddf21959eb, patched in 9eac1904d3364254d622bf2c771c4f85cd435fc2, backported to stable in 788d0824269bef539fe31a785b1517882eafed93.
History

No history.

Weaknesses

Sources

Status
PUBLISHED
Assigner
Google
Published
Updated
Feb 13, 2025, 4:39 PM
Reserved
Mar 9, 2023, 6:05 PM
Status
Modified
Published
Jun 28, 2023, 12:15 PM
Modified
Jun 17, 2026, 5:27 AM
Severity
Important
Public date
Feb 1, 2021, 12:00 AM