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Status published
Medium
CVE-2023-6560
Kernel: io_uring out of boundary memory access in __io_uaddr_map()
Vulnerability Description
An out-of-bounds memory access flaw was found in the io_uring SQ/CQ rings functionality in the Linux kernel. This issue could allow a local user to crash the system.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
- http://packetstormsecurity.com/files/176405/io_uring-__io_uaddr_map-Dangerous-Multi-Page-Handling.html
- https://access.redhat.com/security/cve/CVE-2023-6560
- https://bugzilla.redhat.com/show_bug.cgi?id=2253249
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AU4NHBDEDLRW33O76Y6LFECEYNQET5GZ/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UCQIPFUQXKXRCH5Y4RP3C5NK4IHNBNVK/
- https://patchwork.kernel.org/project/io-uring/patch/20231130194633.649319-2-axboe@kernel.dk/
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Affected Vendor
Affected Software
kernel, Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Fedora
Vulnerable Versions:
6.7-rc5
Timeline
Official Publish:
December 8th, 2023
Last Modified:
August 2nd, 2024
Added to House:
July 22nd, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weaknesses (CWE)
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.