CVE Database›Document archive›CVE-2023-52996

CVE-2023-52996

kernel: ipv4: prevent potential spectre v1 gadget in fib_metrics_match()

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Severity

Moderate

Red Hat Product Security

7.3

CVSS 3.1

Review impact separately from score.

Published · March 27, 2025

Updated · June 30, 2026

Description

A flaw was found in the fib_metrics_match function in the net/ipv4/fib_semantics.c file in the Linux kernel, which contains source code that can lead to CPU speculation or risk leaking kernel memory content. Specifically, this vulnerability can allows an attacker to exploit a Spectre v1 gadget attack.

Statement

Red Hat Product Security has rated this update with a security impact of Moderate. All Red Hat products are being evaluated for impact and Red Hat will work with the Linux community to analyze and correct any issues found. Successful exploitation of this flaw requires the attacker to have advanced knowledge of the software versions used on the system. For additional information about this flaw including possible mitigations please refer to: https://access.redhat.com/solutions/3545361

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

Mitigation for this issue is either not available or the currently available options does not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

CVSS / CWE

CVSS 3.1 · 7.3
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L

CWE-200 · Exposure of Sensitive Information to an Unauthorized Actor