5.5
MEDIUM
CVE-2023-42754
Linux Kernel NULL Pointer Dereference Vulnerability in IPv4 Stack
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.

INFO

Published Date :

Oct. 5, 2023, 7:15 p.m.

Last Modified :

Nov. 21, 2024, 8:23 a.m.

Remotely Exploitable :

No

Impact Score :

3.6

Exploitability Score :

1.8
Affected Products

The following products are affected by CVE-2023-42754 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Linux linux_kernel
1 Redhat enterprise_linux
1 Fedoraproject fedora

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2023-42754 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2023-42754 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference https://access.redhat.com/errata/RHSA-2024:2394
    Added Reference https://access.redhat.com/errata/RHSA-2024:2950
    Added Reference https://access.redhat.com/errata/RHSA-2024:3138
    Added Reference https://access.redhat.com/security/cve/CVE-2023-42754
    Added Reference https://bugzilla.redhat.com/show_bug.cgi?id=2239845
    Added Reference https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html
    Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/GISYSL3F6WIEVGHJGLC2MFNTUXHPTKQH/
    Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/GPMICQ2HVZO5UAM5KPXHAZKA2U3ZDOO6/
    Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/V5PDNWPKAP3WL5RQZ4RIDS6MG32OHH5R/
    Added Reference https://seclists.org/oss-sec/2023/q4/14
  • CVE Modified by [email protected]

    Sep. 13, 2024

    Action Type Old Value New Value
    Removed Reference Red Hat, Inc. https://lists.fedoraproject.org/archives/list/[email protected]/message/V5PDNWPKAP3WL5RQZ4RIDS6MG32OHH5R/
    Removed Reference Red Hat, Inc. https://lists.fedoraproject.org/archives/list/[email protected]/message/GISYSL3F6WIEVGHJGLC2MFNTUXHPTKQH/
    Removed Reference Red Hat, Inc. https://lists.fedoraproject.org/archives/list/[email protected]/message/GPMICQ2HVZO5UAM5KPXHAZKA2U3ZDOO6/
    Removed Reference Red Hat, Inc. https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html
  • CVE Modified by [email protected]

    May. 22, 2024

    Action Type Old Value New Value
    Added Reference Red Hat, Inc. https://access.redhat.com/errata/RHSA-2024:2950 [No types assigned]
    Added Reference Red Hat, Inc. https://access.redhat.com/errata/RHSA-2024:3138 [No types assigned]
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Apr. 30, 2024

    Action Type Old Value New Value
    Added Reference Red Hat, Inc. https://access.redhat.com/errata/RHSA-2024:2394 [No types assigned]
  • CVE Modified by [email protected]

    Jan. 11, 2024

    Action Type Old Value New Value
    Added Reference Red Hat, Inc. https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html [No types assigned]
  • CVE Modified by [email protected]

    Nov. 07, 2023

    Action Type Old Value New Value
    Added CWE Red Hat, Inc. CWE-476
  • Initial Analysis by [email protected]

    Oct. 11, 2023

    Action Type Old Value New Value
    Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
    Changed Reference Type https://access.redhat.com/security/cve/CVE-2023-42754 No Types Assigned https://access.redhat.com/security/cve/CVE-2023-42754 Patch, Third Party Advisory
    Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=2239845 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=2239845 Issue Tracking, Patch, Third Party Advisory
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/GISYSL3F6WIEVGHJGLC2MFNTUXHPTKQH/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/GISYSL3F6WIEVGHJGLC2MFNTUXHPTKQH/ Mailing List
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/GPMICQ2HVZO5UAM5KPXHAZKA2U3ZDOO6/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/GPMICQ2HVZO5UAM5KPXHAZKA2U3ZDOO6/ Mailing List
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/V5PDNWPKAP3WL5RQZ4RIDS6MG32OHH5R/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/V5PDNWPKAP3WL5RQZ4RIDS6MG32OHH5R/ Mailing List
    Changed Reference Type https://seclists.org/oss-sec/2023/q4/14 No Types Assigned https://seclists.org/oss-sec/2023/q4/14 Exploit, Mailing List, Patch, Third Party Advisory
    Added CWE NIST CWE-476
    Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (excluding) 6.6 *cpe:2.3:o:linux:linux_kernel:6.6:rc1:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.6:rc2:*:*:*:*:*:*
    Added CPE Configuration OR *cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*
    Added CPE Configuration OR *cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Oct. 10, 2023

    Action Type Old Value New Value
    Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/GISYSL3F6WIEVGHJGLC2MFNTUXHPTKQH/ [No Types Assigned]
    Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/GPMICQ2HVZO5UAM5KPXHAZKA2U3ZDOO6/ [No Types Assigned]
  • CVE Modified by [email protected]

    Oct. 10, 2023

    Action Type Old Value New Value
    Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/V5PDNWPKAP3WL5RQZ4RIDS6MG32OHH5R/ [No Types Assigned]
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2023-42754 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2023-42754 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.04 }} 0.00%

score

0.05676

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability