CVE-2023-1829

Severity CVSS v4.0:

Pending analysis

Type:

CWE-416 Use After Free

Publication date:

12/04/2023

Last modified:

13/02/2025

Description

A use-after-free vulnerability in the Linux Kernel traffic control index filter (tcindex) can be exploited to achieve local privilege escalation. The tcindex_delete function which does not properly deactivate filters in case of a perfect hashes while deleting the underlying structure which can later lead to double freeing the structure. A local attacker user can use this vulnerability to elevate its privileges to root.<br /> We recommend upgrading past commit 8c710f75256bb3cf05ac7b1672c82b92c43f3d28.

Impact

Vector 3.x

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.80 HIGH
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x

7.80

Severity 3.x

HIGH

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:o:linux:linux_kernel::::::::		4.14.308 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.15 (including)	4.19.276 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.20 (including)	5.4.235 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.5 (including)	5.10.173 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.11 (including)	5.15.100 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.16 (including)	6.1.18 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.2 (including)	6.2.5 (excluding)

To consult the complete list of CPE names with products and versions, see this page

CVE-2023-1829

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools