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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Red Hat Red Hat Enterprise Linux 8
Default version status: affected
0:4.18.0-553.rt7.342.el8_10 to < *unaffected
Red Hat Red Hat Enterprise Linux 8
Default version status: affected
0:4.18.0-553.el8_10 to < *unaffected
Red Hat Red Hat Enterprise Linux 6
Default version status: unknown
Red Hat Red Hat Enterprise Linux 7
Default version status: unknown
Red Hat Red Hat Enterprise Linux 7
Default version status: unknown
Red Hat Red Hat Enterprise Linux 9
Default version status: unaffected
Red Hat Red Hat Enterprise Linux 9
Default version status: unaffected
References
- https://access.redhat.com/errata/RHSA-2024:2950 ↗
- https://access.redhat.com/errata/RHSA-2024:3138 ↗
- https://access.redhat.com/security/cve/CVE-2023-42755 ↗
- https://bugzilla.redhat.com/show_bug.cgi?id=2239847 ↗
- https://seclists.org/oss-sec/2023/q3/229 ↗
- https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html ↗
- https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html ↗
- https://cert-portal.siemens.com/productcert/html/ssa-794697.html ↗
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html ↗