NULL pointer dereference in Linux Kernel
CVE-2023-0458
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
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.007 (52.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 52nd percentile — 52.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000
Affected products
- Linux Kernel — versions 0
- Linux Kernel — versions 6.2
- Debian Linux — versions 10.0
Weakness classification (CWE)
References
- git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/diff/kernel/sys.c (Patch)
- github.com/torvalds/linux/commit/739790605705ddcf18f21782b9c99ad7d53a8c11 (Patch)
- lists.debian.org/debian-lts-announce/2023/05/msg00005.html (Mailing List, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2023/05/msg00006.html (Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2023-0458?
- CVE-2023-0458 is a medium-severity vulnerability in Linux Kernel, classified under NULL Pointer Dereference. CVSS score: 5.3/10. Published 2023-04-26.
- How severe is CVE-2023-0458?
- Medium severity. CVSS v3 base score is 5.3 out of 10.