NULL pointer dereference in Linux Kernel
CVE-2022-40476
A null pointer dereference issue was discovered in fs/io_uring.c in the Linux kernel before 5.15.62. A local user could use this flaw to crash the system or potentially cause a denial of service.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.003 (21.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 22nd percentile — 21.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: +0.000
Affected products
Weakness classification (CWE)
References
- lore.kernel.org/lkml/CAO4S-mdVW5GkODk0+vbQexNAAJZopwzFJ9ACvRCJ989fQ4A6Ow@mail.g…
- git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/fs/io_uring.c (Patch, Vendor Advisory)
- mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.62 (Release Notes, Vendor Advisory)
Frequently asked questions
- What is CVE-2022-40476?
- CVE-2022-40476 is a medium-severity vulnerability in Linux Kernel, classified under NULL Pointer Dereference. CVSS score: 5.5/10. Published 2022-09-14.
- How severe is CVE-2022-40476?
- Medium severity. CVSS v3 base score is 5.5 out of 10.