CVEvulnerability

CVE-2023-52996

5.5 MEDIUM Published 2025-03-27 Modified 2026-06-17 Official page ↗
Status
Analyzed
Published
2025-03-27
Last modified
2026-06-17
Assigner
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS 3.1 ([email protected])
5.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Description

In the Linux kernel, the following vulnerability has been resolved: ipv4: prevent potential spectre v1 gadget in fib_metrics_match() if (!type) continue; if (type > RTAX_MAX) return false; ... fi_val = fi->fib_metrics->metrics[type - 1]; @type being used as an array index, we need to prevent cpu speculation or risk leaking kernel memory content.

Affected configurations

• linux linux kernel (>= 4.14 < 5.4.231) • linux linux kernel (>= 5.5 < 5.10.166) • linux linux kernel (>= 5.11 < 5.15.91) • linux linux kernel (>= 5.16 < 6.1.9) • linux linux kernel 6.2

References