Vulnerability in Linux Kernel
CVE-2021-46283
nf_tables_newset in net/netfilter/nf_tables_api.c in the Linux kernel before 5.12.13 allows local users to cause a denial of service (NULL pointer dereference and general protection fault) because of the missing initialization for nft_set_elem_expr_alloc. A local user can set a netfilter table expression in their own namespace.
Vulnerability class: Dirty Pipe (CVE-2022-0847)
EPSS: 0.003 (24.0th percentile) — read the EPSS interpretation.
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.
Affected products
- Linux Linux_kernel
- N/a — versions n/a
Weakness classification (CWE)
References
- cve@mitre.org (x_refsource_MISC, Release Notes, Vendor Advisory)
- cve@mitre.org (Patch, x_refsource_MISC, Vendor Advisory)
- cve@mitre.org (Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2021-46283?
- CVE-2021-46283 is a medium-severity vulnerability in Linux Kernel, classified under Improper Initialization. CVSS score: 5.5/10. Published 2022-01-11.
- How severe is CVE-2021-46283?
- Medium severity. CVSS v3 base score is 5.5 out of 10.