CVE-2023-0458

Spectre V1 Gadget in do_prlimit in the Linux Kernel

CVSS 5.3 MEDIUMEPSS 0.7%CWE-476

Vexday Risk Score

13Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 5.3EPSS 0.7%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

26 Apr 2023Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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

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

Affected products

Linux · Linux Kernel

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References

https://github.com/torvalds/linux/commit/739790605705ddcf18f21782b9c99ad7d53a8c11 https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/diff/kernel/sys.c?id=v6.1.8&id2=v6.1.7 https://lists.debian.org/debian-lts-announce/2023/05/msg00005.html https://lists.debian.org/debian-lts-announce/2023/05/msg00006.html