CVE-2023-4207
CVSS v3.1
7.8 (High)
EPSS
0.04 % (5th)
Affected Products
2
Advisories
15
A use-after-free vulnerability in the Linux kernel's net/sched: cls_fw component can be exploited to achieve local privilege escalation.
When fw_change() is called on an existing filter, the whole tcf_result struct is always copied into the new instance of the filter. This causes a problem when updating a filter bound to a class, as tcf_unbind_filter() is always called on the old instance in the success path, decreasing filter_cnt of the still referenced class and allowing it to be deleted, leading to a use-after-free.
We recommend upgrading past commit 76e42ae831991c828cffa8c37736ebfb831ad5ec.
- CVE Status
- PUBLISHED
- CNA
- Google Inc.
- Published Date
-
2023-09-06 14:15:11
(12 months ago) - Updated Date
-
2024-02-05 19:55:24
(7 months ago)
Affected Products
Loading...
Loading...
Configuration #1
|
Configuration #2
|
Loading...
Loading...
Loading...
Loading...
Loading...
Loading...
Loading...