CVE-2023-42755
Kernel: rsvp: out-of-bounds read in rsvp_classify()
CVSS Score
6.5
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-125 |
| Vendor | red hat |
| Product | red hat enterprise linux 8 |
| Published | Oct 5, 2023 |
| Last Updated | Nov 8, 2025 |
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CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
None
Integrity
None
Availability
High
Affected Versions
Red Hat / Red Hat Enterprise Linux 8
All versions affected Red Hat / Red Hat Enterprise Linux 8
All versions affected Red Hat / Red Hat Enterprise Linux 6
All versions affected Red Hat / Red Hat Enterprise Linux 7
All versions affected Red Hat / Red Hat Enterprise Linux 7
All versions affected Red Hat / Red Hat Enterprise Linux 9
All versions affected Red Hat / Red Hat Enterprise Linux 9
All versions affected References
access.redhat.com: https://access.redhat.com/errata/RHSA-2024:2950 access.redhat.com: https://access.redhat.com/errata/RHSA-2024:3138 access.redhat.com: https://access.redhat.com/security/cve/CVE-2023-42755 bugzilla.redhat.com: https://bugzilla.redhat.com/show_bug.cgi?id=2239847 seclists.org: https://seclists.org/oss-sec/2023/q3/229 lists.debian.org: https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html lists.debian.org: https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html