CVE Database›Document archive›CVE-2024-40931

CVE-2024-40931

kernel: mptcp: ensure snd_una is properly initialized on connect

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Severity

Moderate

Red Hat Product Security

5.5

CVSS 3.1

Review impact separately from score.

Published · July 12, 2024

Updated · October 31, 2026

Description

A vulnerability was found in the Linux kernel's match component in the initialization of the snd_una variable while establishing a connection. The issue arises when retransmission occurs after a fallback, leaving the snd_una sequence number uninitialized, leading to unpredictable behavior and potential denial of service.

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 do 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 · 5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CWE-400 · Uncontrolled Resource Consumption