CVE-2023-42754CWE-476

CVE-2023-42754

Medium · published October 5, 2023

CVSS v3.1
5.5
EPSS
0%
Percentile
35.7
In the wild
Unconfirmed
What it is

A NULL pointer dereference flaw was found in the Linux kernel ipv4 stack. The socket buffer (skb) was assumed to be associated with a device before calling __ip_options_compile, which is not always the case if the skb is re-routed by ipvs. This issue may allow a local user with CAP_NET_ADMIN privileges to crash the system.

The record
Technical detail
CVSS v3.1
5.5 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00425 · 35.7th percentile
Weakness
CWE-476 · NULL Pointer Dereference
Published
2023-10-05T23:15Z
Affected products (8)
ProductVersionsFixed in
linux/linux_kernel< 6.66.6
linux/linux_kernelall versions—
linux/linux_kernelall versions—
redhat/enterprise_linuxall versions—
redhat/enterprise_linuxall versions—
fedoraproject/fedoraall versions—
fedoraproject/fedoraall versions—
fedoraproject/fedoraall versions—
References (19)
https://access.redhat.com/errata/RHSA-2024:2394 · [email protected]https://access.redhat.com/errata/RHSA-2024:2950 · [email protected]https://access.redhat.com/errata/RHSA-2024:3138 · [email protected]https://access.redhat.com/security/cve/CVE-2023-42754 · [email protected]https://bugzilla.redhat.com/show_bug.cgi?id=2239845 · [email protected]https://seclists.org/oss-sec/2023/q4/14 · [email protected]https://access.redhat.com/errata/RHSA-2024:2394 · af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2024:2950 · af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2024:3138 · af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/security/cve/CVE-2023-42754 · af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=2239845 · af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html · af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/[email protected]/message/GISYSL3F6WIEVGHJGLC2MFNTUXHPTKQH/ · af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/[email protected]/message/GPMICQ2HVZO5UAM5KPXHAZKA2U3ZDOO6/ · af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/[email protected]/message/V5PDNWPKAP3WL5RQZ4RIDS6MG32OHH5R/ · af854a3a-2127-422b-91ae-364da2661108https://seclists.org/oss-sec/2023/q4/14 · af854a3a-2127-422b-91ae-364da2661108https://cert-portal.siemens.com/productcert/html/ssa-398330.html · 0b142b55-0307-4c5a-b3c9-f314f3fb7c5ehttps://cert-portal.siemens.com/productcert/html/ssa-769027.html · 0b142b55-0307-4c5a-b3c9-f314f3fb7c5ehttps://cert-portal.siemens.com/productcert/html/ssa-794697.html · 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
EPSS history
Timeline
  • 05 OCT 18:25Z
    Kernel: ipv4: null pointer dereference in ipv4_send_dest_unreach()
    cvelistv5