Dashboard / CVE-2023-42755

CVE-2023-42755

MEDIUM
MEDIUM Priority: 0.03 BB Relevance: 38/100
Published: 2023-10-05 Modified: 2026-11-07 First seen: 2026-11-07 Status: active

Attack Surface

Low Complexity No Interaction Scope Change

CVSS Vector Breakdown

AV: Local
AC: Low
PR: Low
UI: None
S: Changed
C: None
I: None
A: High

Description

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.

Weakness Classification (1)

Affected Software (3)

VendorProductVersion
debian debian_linux 10.0
linux linux_kernel < 6.3
redhat enterprise_linux 8.0

References & Advisories (9)

https://bugzilla.redhat.com/show_bug.cgi?id=2239847
Issue Tracking Patch Third Party Advisory
https://seclists.org/oss-sec/2023/q3/229
Exploit Mailing List Patch

Bug Bounty Relevance

38 / 100
✓ Low complexity
✓ No user interaction

CVSS Score

6.5 / 10.0 v3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

EPSS — Exploitation Probability

0.40%
Raw Score 0.004020
Percentile 35.0%
Date 2026-11-13

EPSS Trend

2026-11-13
0.00402
2026-11-12
0.00402
2026-11-10
0.00402
2026-11-09
0.00402
2026-11-08
0.00402
2026-11-07
0.00413
2026-11-06
0.00402

Intelligence Sources

mitre ref →
nvd ref →

External Links