PT-2023-5747 · Linux+9 · Linux Kernel+9

Kyle Zeng · Published 2023-09-13 · Updated 2024-12-19 · CVE-2023-42754

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

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.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

ALSA-2024:2394

ALSA-2024:2950

ALSA-2024:3138

ALT-PU-2023-6854

ALT-PU-2023-7004

ALT-PU-2023-7787

ALT-PU-2023-7838

ALT-PU-2024-14046

ALT-PU-2024-6818

AZL-31271

BDU:2023-06420

CESA-2024_2950

CESA-2024_3138

CVE-2023-42754

DLA-3710-1

INFSA-2024_2394

INFSA-2024_2950

INFSA-2024_3138

MGASA-2023-0295

MGASA-2023-0296

OESA-2023-1764

OESA-2023-1765

OESA-2023-1781

OESA-2023-1782

OESA-2023-1783

OPENSUSE-SU-2023_4035-1

OPENSUSE-SU-2023_4057-1

OPENSUSE-SU-2023_4058-1

OPENSUSE-SU-2023_4071-1

OPENSUSE-SU-2023_4072-1

OPENSUSE-SU-2023_4072-2

OPENSUSE-SU-2023_4347-1

OPENSUSE-SU-2023_4348-1

OPENSUSE-SU-2024:13305-1

OPENSUSE-SU-2024:13704-1

RHSA-2024:2394

RHSA-2024:2950

RHSA-2024:3138

RHSA-2024_2394

RHSA-2024_2950

RHSA-2024_3138

RLSA-2024:2950

RLSA-2024:3138

SUSE-SU-2023:4031-1

SUSE-SU-2023:4032-1

SUSE-SU-2023:4033-1

SUSE-SU-2023:4035-1

SUSE-SU-2023:4057-1

SUSE-SU-2023:4058-1

SUSE-SU-2023:4071-1

SUSE-SU-2023:4072-1

SUSE-SU-2023:4072-2

SUSE-SU-2023:4093-1

SUSE-SU-2023:4347-1

SUSE-SU-2023:4348-1

SUSE-SU-2023:4358-1

SUSE-SU-2023:4377-1

USN-6461-1

USN-6494-1

USN-6494-2

USN-6532-1

USN-6534-1

USN-6534-2

USN-6534-3

USN-6536-1

USN-6537-1

USN-6548-1

USN-6548-2

USN-6548-3

USN-6548-4

USN-6548-5

USN-6549-1

USN-6549-2

USN-6549-3

USN-6549-4

USN-6549-5

USN-6573-1

USN-6635-1

Affected Products

Alt Linux

Almalinux

Astra Linux

Centos

Linuxmint

Linux Kernel

Red Hat

Rocky Linux

Suse

Ubuntu

References · 769

• 🔥 https://seclists.org/oss-sec/2023/q4/14 · Exploit
• https://ubuntu.com/security/CVE-2023-4921 · Vendor Advisory
• https://errata.almalinux.org/9/ALSA-2024-2394.html · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-32246 · Security Note
• https://ubuntu.com/security/notices/USN-6534-1 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2024:13305-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-2898 · Security Note
• https://ubuntu.com/security/CVE-2023-3006 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-20593 · Vendor Advisory
• https://osv.dev/vulnerability/ALSA-2024:3138 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-6548-4 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2023:4057-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2023:4032-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-5717 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-44033 · Security Note