CVE-2021-47592 is a NULL pointer dereference vulnerability in the Linux kernel's stmmac network driver. Specifically, it affects the handling of VLAN priority-based RX steering when deleting a traffic control (tc) flower filter. This flaw can lead to a kernel crash, resulting in a denial of service. The vulnerability is rated Medium severity (CVSS 5.5) with a vector of AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H, indicating it requires local access and low attack complexity to achieve a high impact on availability. There is no impact on confidentiality or integrity. There is currently no evidence of active exploitation, nor are there publicly available exploit modules or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 5.13, < 5.15.11CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | ||
5.16CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:5.16:rc1:*:*:*:*:*:* | ||
5.16CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:5.16:rc2:*:*:*:*:*:* | ||
5.16CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:5.16:rc3:*:*:*:*:*:* | ||
5.16CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:5.16:rc4:*:*:*:*:*:* |
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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