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.
References (7)
Core 7
Core References
Exploit, Mailing List, Patch, Third Party Advisory
https://seclists.org/oss-sec/2023/q3/229
Vendor Advisory vendor-advisory
x_refsource_redhat
https://access.redhat.com/errata/RHSA-2024:2950
Vendor Advisory vendor-advisory
x_refsource_redhat
https://access.redhat.com/errata/RHSA-2024:3138
Third Party Advisory vdb-entry
x_refsource_redhat
https://access.redhat.com/security/cve/CVE-2023-42755
Issue Tracking, Patch, Third Party Advisory issue-tracking
x_refsource_redhat
https://bugzilla.redhat.com/show_bug.cgi?id=2239847
Scores
CVSS v3
6.5
EPSS
0.0001
EPSS Percentile
0.4%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-125
Status
published
Products (3)
debian/debian_linux
10.0
linux/linux_kernel
< 6.3
redhat/enterprise_linux
8.0
Published
Oct 05, 2023
Tracked Since
Feb 18, 2026