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CVE-2023-1829
Good to know:

Date: April 12, 2023
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.
Language: C
Severity Score
Related Resources (9)
Severity Score
Weakness Type (CWE)
Use After Free
CWE-416Top Fix

Upgrade Version
Upgrade to version linux-yocto - 4.10+gitAUTOINC+805ea440c7_b259a5d744;linux-yocto - 4.8.26+gitAUTOINC+1c60e003c7_27efc3ba68;linux-libc-headers - 5.14
CVSS v3.1
Base Score: |
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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 |