CVE-2024-40931

CVE Details

Release Date:

2024-07-12

Description

In the Linux kernel, the following vulnerability has been resolved:\nmptcp: ensure snd_una is properly initialized on connect\nThis is strictly related to commit fb7a0d334894 ('mptcp: ensure snd_nxt\nis properly initialized on connect'). It turns out that syzkaller can\ntrigger the retransmit after fallback and before processing any other\nincoming packet - so that snd_una is still left uninitialized.\nAddress the issue explicitly initializing snd_una together with snd_nxt\nand write_seq.

See more information about CVE-2024-40931 from MITRE CVE dictionary and NIST NVD

CVSS Scoring

NOTE: The following CVSS v3.1 metrics and score provided are preliminary and subject to review.

Base Score:	5.5	CVSS Vector:	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector:	Local network	Attack Complexity:	Low
Privileges Required:	Low	User Interaction:	None
Scope:	Unchanged	Confidentiality Impact:	None
Integrity Impact:	None	Availability Impact:	High

Errata information

Platform	Errata	Release Date
Oracle Linux version 8 (kernel)	ELSA-2024-7000	2024-09-24
Oracle Linux version 8 (kernel-uek)	ELSA-2024-12618	2024-09-12
Oracle Linux version 9 (kernel)	ELSA-2024-8617	2024-10-30
Oracle Linux version 9 (kernel-uek)	ELSA-2024-12618	2024-09-12