CVE-2023-0458

Name: CVE-2023-0458
Creator: NVD / NIST
Published: 2023-04-26T19:15:08.72+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.7/10EPSS 0.72%

Last modified Jun 17, 2026

CVE-2023-0458 is a medium-severity vulnerability rated 4.7/10 on the CVSS scale. A speculative pointer dereference problem exists in the Linux Kernel on the do_prlimit() function. The resource argument value is controlled and is used in pointer arithmetic for the 'rlim' variable and can be used to leak the contents. EPSS estimates a 0.72% chance of exploitation in the next 30 days.

Description

A speculative pointer dereference problem exists in the Linux Kernel on the do_prlimit() function. The resource argument value is controlled and is used in pointer arithmetic for the 'rlim' variable and can be used to leak the contents. We recommend upgrading past version 6.1.8 or commit 739790605705ddcf18f21782b9c99ad7d53a8c11

Metrics

CVSS 3.1

4.7/10

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

EPSS Probability

0.72%

49.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions	Update
Linux	Linux Kernel	< 6.1.8	—
Linux	Linux Kernel	6.2	Rc1
Debian	Debian Linux	10.0	—

References

https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/diff/kernel/sys.c?id=v6.1.8&id2=v6.1.7Patch
https://github.com/torvalds/linux/commit/739790605705ddcf18f21782b9c99ad7d53a8c11Patch
https://lists.debian.org/debian-lts-announce/2023/05/msg00005.htmlMailing List, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2023/05/msg00006.htmlMailing List, Third Party Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/diff/kernel/sys.c?id=v6.1.8&id2=v6.1.7Patch
https://github.com/torvalds/linux/commit/739790605705ddcf18f21782b9c99ad7d53a8c11Patch
https://lists.debian.org/debian-lts-announce/2023/05/msg00005.htmlMailing List, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2023/05/msg00006.htmlMailing List, Third Party Advisory

Timeline

Published: Apr 26, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-0458?

How severe is CVE-2023-0458?

CVE-2023-0458 has a CVSS score of 4.7/10 (MEDIUM severity). The EPSS model estimates a 0.72% probability of exploitation in the next 30 days.

How do I fix CVE-2023-0458?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-0458?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST