CVE-2023-6560

Kernel: io_uring out of boundary memory access in __io_uaddr_map()

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.

Affected

Red Hat · Fedora · kernel · Red Hat Enterprise Linux 6 · Red Hat Enterprise Linux 7 · Red Hat Enterprise Linux 8 · Red Hat Enterprise Linux 9

CVSS v3.1 NVD

5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS

0.28% chance of exploitation in the next 30 days, 19th percentile

Published

2023-12-08

Updated

2024-08-02

Exploit collections (1)

• linux/kernelctf/CVE-2023-6560_mitigationgoogle/security-research

Security advisories

• https://access.redhat.com/security/cve/CVE-2023-6560
• https://patchwork.kernel.org/project/io-uring/patch/20231130194633.649319-2-axboe@kernel…
• https://bugzilla.redhat.com/show_bug.cgi?id=2253249

References

• CVE Record
• NVD entry