CVE-2022-49228 is a null-pointer dereference vulnerability in the Linux kernel's BPF (Berkeley Packet Filter) subsystem, specifically within the btf_decl_tag_resolve function. This flaw affects Linux kernel versions and arises when processing malformed BTF (BPF Type Format) data, particularly with decl_tag entries pointing to invalid function types. The vulnerability has a CVSSv3.1 score of 5.5 (Medium), indicating a local attack vector with low attack complexity. A successful exploit could lead to a denial of service (system crash) due to the kernel panic. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE. It is not listed on the CISA KEV catalog.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 5.16, < 5.16.19CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | ||
>= 5.17, < 5.17.2CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.