Kernel: io_uring out of boundary memory access in __io_uaddr_map()
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 5.5epss 0.3%
exploitation probability
0.3%top 79% of all CVEs
observed exploitation
nono source reports it
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.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected products
Fedora · Fedoran/a · kernelRed Hat · Red Hat Enterprise Linux 6Red Hat · Red Hat Enterprise Linux 7Red Hat · Red Hat Enterprise Linux 8Red Hat · Red Hat Enterprise Linux 9References
http://packetstormsecurity.com/files/176405/io_uring-__io_uaddr_map-Dangerous-Multi-Page-Handling.htmlhttps://access.redhat.com/security/cve/CVE-2023-6560https://bugzilla.redhat.com/show_bug.cgi?id=2253249https://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/