CVE-2023-42755 MEDIUM

CVE-2023-42755: Kernel: rsvp: out-of-bounds read in rsvp_classify()

Vendor Red Hat
Product Red Hat Enterprise Linux 6
Weakness CWE-125
Published October 5, 2023
Last update November 8, 2025
View on NVD All CVEs

CVSS base score

6.5/10
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality None
Integrity None

CVSS vector

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

What the vulnerability does

01Description

A flaw was found in the IPv4 Resource Reservation Protocol (RSVP) classifier in the Linux kernel. The xprt pointer may go beyond the linear part of the skb, leading to an out-of-bounds read in the `rsvp_classify` function. This issue may allow a local user to crash the system and cause a denial of service.

Key dates

02Disclosure timeline

October 5, 2023 CVE published
November 8, 2025 Record updated