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.
We recommend upgrading past commit 8c710f75256bb3cf05ac7b1672c82b92c43f3d28.
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Thu, 13 Feb 2025 17:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Thu, 13 Feb 2025 16:45:00 +0000

Type Values Removed Values Added
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. We recommend upgrading past commit 8c710f75256bb3cf05ac7b1672c82b92c43f3d28. 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. We recommend upgrading past commit 8c710f75256bb3cf05ac7b1672c82b92c43f3d28.

cve-icon MITRE

Status: PUBLISHED

Assigner: Google

Published:

Updated: 2025-02-13T16:39:39.975Z

Reserved: 2023-04-04T10:32:43.055Z

Link: CVE-2023-1829

cve-icon Vulnrichment

Updated: 2024-08-02T06:05:26.153Z

cve-icon NVD

Status : Modified

Published: 2023-04-12T12:15:07.080

Modified: 2025-02-13T17:16:00.420

Link: CVE-2023-1829

cve-icon Redhat

Severity : Important

Publid Date: 2023-04-20T00:00:00Z

Links: CVE-2023-1829 - Bugzilla

cve-icon OpenCVE Enrichment

No data.