CVE-2023-42754

Published: Oct 5, 2023Modified: Nov 21, 2024

5.5

Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Exploitability: 1.8 / Impact: 3.6

Source: NVD

Description

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.

Affected (8)

Products: Linux: Linux Kernel · Redhat: Enterprise Linux · Fedoraproject: Fedora

1 product

1 product

Enterprise Linux

1 product

Configuration A

3 vulnerable

Vulnerable Software	Affected Versions
Linux Linux Kernel	Before 6.6
Linux Linux Kernel	Version 6.6 rc1
Linux Linux Kernel	Version 6.6 rc2

Configuration B

2 vulnerable

Vulnerable Software	Affected Versions
Redhat Enterprise Linux	Version 8.0
Redhat Enterprise Linux	Version 9.0

Configuration C

3 vulnerable

Vulnerable Software	Affected Versions
Fedoraproject Fedora	Version 37
Fedoraproject Fedora	Version 38
Fedoraproject Fedora	Version 39

Related CWEs

NULL Pointer Dereference

The product dereferences a pointer that it expects to be valid but is NULL.

References (16)

https://access.redhat.com/errata/RHSA-2024:2394

Source: secalert@redhat.com

https://access.redhat.com/errata/RHSA-2024:2950

Source: secalert@redhat.com

https://access.redhat.com/errata/RHSA-2024:3138

Source: secalert@redhat.com

https://access.redhat.com/security/cve/CVE-2023-42754

Source: secalert@redhat.com

PatchThird Party Advisory

https://bugzilla.redhat.com/show_bug.cgi?id=2239845

Source: secalert@redhat.com

Issue TrackingPatchThird Party Advisory

https://seclists.org/oss-sec/2023/q4/14

Source: secalert@redhat.com

ExploitMailing ListPatchThird Party Advisory

https://access.redhat.com/errata/RHSA-2024:2394

Source: af854a3a-2127-422b-91ae-364da2661108

https://access.redhat.com/errata/RHSA-2024:2950

Source: af854a3a-2127-422b-91ae-364da2661108

https://access.redhat.com/errata/RHSA-2024:3138

Source: af854a3a-2127-422b-91ae-364da2661108

https://access.redhat.com/security/cve/CVE-2023-42754

Source: af854a3a-2127-422b-91ae-364da2661108

PatchThird Party Advisory

https://bugzilla.redhat.com/show_bug.cgi?id=2239845

Source: af854a3a-2127-422b-91ae-364da2661108

Issue TrackingPatchThird Party Advisory

https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html

Source: af854a3a-2127-422b-91ae-364da2661108

https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GISYSL3F6WIEVGHJGLC2MFNTUXHPTKQH/

Source: af854a3a-2127-422b-91ae-364da2661108

https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GPMICQ2HVZO5UAM5KPXHAZKA2U3ZDOO6/

Source: af854a3a-2127-422b-91ae-364da2661108

https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/V5PDNWPKAP3WL5RQZ4RIDS6MG32OHH5R/

Source: af854a3a-2127-422b-91ae-364da2661108

https://seclists.org/oss-sec/2023/q4/14

Source: af854a3a-2127-422b-91ae-364da2661108

ExploitMailing ListPatchThird Party Advisory

Timeline

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