PT-2022-6435 · Linux+3 · Linux Kernel+3

Rohit Keshri · Published 2022-10-24 · Updated 2024-12-17 · CVE-2023-28327

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 UNIX protocol in net/unix/diag.c, specifically in the unix diag get exact function. This issue arises because the newly allocated skb does not have sk, leading to a NULL pointer. As a result, a local user can crash the system or potentially cause a denial of service. The flaw is related to errors in pointer dereferencing, which can be exploited to disrupt service.

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

DoS

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

ALT-PU-2022-2915

ALT-PU-2022-2919

ALT-PU-2022-2922

ALT-PU-2022-2925

ALT-PU-2023-1684

ALT-PU-2023-1741

ALT-PU-2023-1814

ALT-PU-2023-4894

AZL-26339

BDU:2023-01283

CVE-2023-28327

OESA-2023-1209

OESA-2023-1210

OPENSUSE-SU-2023_2646-1

OPENSUSE-SU-2023_2871-1

OPENSUSE-SU-2024_3983-1

OPENSUSE-SU-2024_3985-1

OPENSUSE-SU-2024_4131-1

OPENSUSE-SU-2024_4140-1

RHSA-2023:5603

RHSA-2023:5604

SUSE-SU-2023:1800-1

SUSE-SU-2023:1802-1

SUSE-SU-2023:1811-1

SUSE-SU-2023:1892-1

SUSE-SU-2023:1897-1

SUSE-SU-2023:1992-1

SUSE-SU-2023:2646-1

SUSE-SU-2023:2809-1

SUSE-SU-2023:2871-1

SUSE-SU-2024:3983-1

SUSE-SU-2024:3985-1

SUSE-SU-2024:4081-1

SUSE-SU-2024:4082-1

SUSE-SU-2024:4103-1

SUSE-SU-2024:4131-1

SUSE-SU-2024:4140-1

SUSE-SU-2024:4364-1

Affected Products

Alt Linux

Astra Linux

Linux Kernel

Suse

References · 1623

• https://osv.dev/vulnerability/SUSE-SU-2024:4131-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-1513 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2023-28328 · Security Note
• https://wiki.astralinux.ru/astra-linux-se17-bulletin-2023-1023SE17 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2024:3985-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-48425 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2023:2646-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-48423 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2023-1380 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2023-28327 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2023:1897-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2023:1811-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2023:2809-1 · Vendor Advisory
• https://wiki.astralinux.ru/astra-linux-se47-bulletin-2024-0416SE47 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2023:1800-1 · Vendor Advisory