Kernel: io_uring out of boundary memory access in __io_uaddr_map()
CVE-2023-6560

5.5MEDIUM

Key Information:

Vendor

Red Hat
Status
kernel
Red Hat Enterprise Linux 6
Red Hat Enterprise Linux 7
Red Hat Enterprise Linux 8
Vendor
CVE Published:
9 December 2023
đź”” Create Red Hat Vulnerability Alert

What is CVE-2023-6560?

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 Version(s)

kernel 6.7-rc5

References

https://access.redhat.com/security/cve/CVE-2023-6560
vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2253249
issue-trackingx_refsource_REDHAT
https://patchwork.kernel.org/project/io-uring/patch/20231...

CVSS V3.1

Score:
5.5
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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CVE-2023-6560 : Kernel: io_uring out of boundary memory access in __io_uaddr_map()