CVE-2023-2598

moderate-risk
Published 2023-06-01

A flaw was found in the fixed buffer registration code for io_uring (io_sqe_buffer_register in io_uring/rsrc.c) in the Linux kernel that allows out-of-bounds access to physical memory beyond the end of the buffer. This flaw enables full local privilege escalation.

Do I need to act?

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0.70% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
7
CVSS 7.8/10 High
LOCAL / LOW complexity

Affected Products (6)

Affected Vendors

Linux Netapp

References (6)

http://www.openwall.com/lists/oss-security/2024/04/24/3
Third Party Advisory https://security.netapp.com/advisory/ntap-20230703-0006/
Mailing List https://www.openwall.com/lists/oss-security/2023/05/08/3
http://www.openwall.com/lists/oss-security/2024/04/24/3
Third Party Advisory https://security.netapp.com/advisory/ntap-20230703-0006/
Mailing List https://www.openwall.com/lists/oss-security/2023/05/08/3
39
/ 100
moderate-risk
Severity 24/34 · High
Exploitability 2/34 · Minimal
Exposure 13/34 · Low