CVE-2023-42755

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.

CVSS v3.1

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

CVSS v3.1

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

EPSS

0.40% chance of exploitation in the next 30 days, 33th percentile

Published

2023-10-05

Updated

2025-11-08

Proof-of-concept exploits (1)

• https://seclists.org/oss-sec/2023/q3/229

References

• CVE Record
• NVD entry

Related

• CVE-2023-42754
• CVE-2023-42756
• CVE-2023-42753
• CVE-2023-4278
• CVE-2023-4270
• CVE-2023-42787