ALPINE-CVE-2022-33743 — Vulnetix

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ALPINE-CVE-2022-33743 PUBLISHED CVSS 7.800000190734863 HIGH

network backend may cause Linux netfront to use freed SKBs While adding logic to support XDP (eXpress Data Path), a code label was moved in a way allowing for SKBs having references (pointers) retained for further processing to nevertheless be freed.

Risk Scores

CVSS v3.1

7.800000190734863

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Products

Vendor	Product	Versions
Alpine:v3.15	xen	4.9.1-r3, 4.11.0-r1, 4.11.1-r0
Alpine:v3.14	xen	4.0.1-r0, 4.0.1-r3, 4.1.0-r0

Timeline

Jul 5, 2022 CVE Published
Nov 19, 2025 CVE Updated
Apr 30, 2026 Distribution Patch

References

https://security.alpinelinux.org/vuln/CVE-2022-33743 advisory

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