NULL pointer dereference in Linux Kernel
CVE-2022-0433
A NULL pointer dereference flaw was found in the Linux kernel's BPF subsystem in the way a user triggers the map_get_next_key function of the BPF bloom filter. This flaw allows a local user to crash the system. This flaw affects Linux kernel versions prior to 5.17-rc1.
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 (19.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 20th percentile — 19.5% 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
- Linux Kernel
- Fedoraproject Fedora — versions 35
- Kernel — versions Linux kernel versions prior to 5.17-rc1
Weakness classification (CWE)
References
- bugzilla.redhat.com/show_bug.cgi (Patch, Third Party Advisory, Issue Tracking)
- git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next.git/commit/ (Patch, Mailing List, Third Party Advisory)
- lore.kernel.org/bpf/1640776802-22421-1-git-send-email-tcs.kernel@gmail.com/t/
Frequently asked questions
- What is CVE-2022-0433?
- CVE-2022-0433 is a medium-severity vulnerability in Linux Kernel, classified under Use of Uninitialized Resource. CVSS score: 5.5/10. Published 2022-03-10.
- How severe is CVE-2022-0433?
- Medium severity. CVSS v3 base score is 5.5 out of 10.