IM
IronMonkey Threat Research

CVE-2023-1095 MEDIUM

Published: 2023-02-28 | Last Modified: 2025-03-18 | Status: Modified

Description

In nf_tables_updtable, if nf_tables_table_enable returns an error, nft_trans_destroy is called to free the transaction object. nft_trans_destroy() calls list_del(), but the transaction was never placed on a list -- the list head is all zeroes, this results in a NULL pointer dereference.

CVSS Metrics

Base Score: 5.5 (MEDIUM)

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

Attack VectorLOCAL
Attack ComplexityLOW
Privileges RequiredLOW
User InteractionNONE
ScopeUNCHANGED
Confidentiality ImpactNONE
Integrity ImpactNONE
Availability ImpactHIGH

Source: [email protected]

Type: Primary

Exploitability Score: 1.8

Impact Score: 3.6

Weaknesses

Source Type Description
[email protected] Secondary
en CWE-476
[email protected] Primary
en CWE-476

Affected Products

Vendor Product Version Update Type
linux linux_kernel * <built-in method update of dict object at 0x7fd36ad4eb80> Operating System
redhat enterprise_linux 8.0 <built-in method update of dict object at 0x7fd36ad4da80> Operating System
redhat enterprise_linux 9.0 <built-in method update of dict object at 0x7fd369ad7d80> Operating System

Affected Configurations

Operator: OR

Vulnerable CPE
Yes cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Operator: OR

Vulnerable CPE
Yes cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
Yes cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*

References