CVEvulnerability

CVE-2023-53589

5.5 MEDIUM Published 2025-10-04 Modified 2026-10-15 Official page ↗
Status
Modified
Published
2025-10-04
Last modified
2026-10-15
Assigner
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS 3.1 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)
8.8 HIGH — CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 3.1 ([email protected])
5.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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.

Affected configurations

• linux linux kernel (>= 4.1 < 5.4.244) • linux linux kernel (>= 5.5 < 5.10.181) • linux linux kernel (>= 5.11 < 5.15.113) • linux linux kernel (>= 5.16 < 6.1.30) • linux linux kernel (>= 6.2 < 6.3.4) • linux linux kernel 6.4

References