CVE-2023-53589
Published: October 7, 2025Last modified: October 7, 2025
Description
In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: mvm: don't trust firmware n_channels If the firmware sends us a corrupted MCC response with n_channels much larger than the command response can be, we might copy far too much (uninitialized) memory and even crash if the n_channels is large enough to make it run out of the one page allocated for the FW response. Fix that by checking the lengths. Doing a < comparison would be sufficient, but the firmware should be doing it correctly, so check more strictly.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 5.5 |
| Attack Vector | LOCAL |
| Attack complexity | LOW |
| Privileges required | LOW |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | NONE |
| Integrity impact | NONE |
| Availability impact | HIGH |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | linux-lts | Not affected (6.1.33-r0) |
| 25 LTS | linux-lts | Not affected (6.6.89-r0) | |
| Stream | linux-lts | Fixed (6.6.58-r0) |
References
- https://git.kernel.org/stable/c/05ad5a4d421ce65652fcb24d46b7e273130240d6
- https://git.kernel.org/stable/c/557ba100d8cf3661ff8d71c0b4a2cba8db555ec2
- https://git.kernel.org/stable/c/682b6dc29d98e857e6ca4bbc077c7dc2899b7473
- https://git.kernel.org/stable/c/c176f03350954b795322de0bfe1d7b514db41f45
- https://git.kernel.org/stable/c/d0d39bed9e95f27a246be91c5929254ac043ed30
- https://git.kernel.org/stable/c/e519a404a5bbba37693cb10fa61794a5fce4fd9b