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DEBIAN-CVE-2023-53589

DEBIAN-CVE-2023-53589 PUBLISHED CVSS 5.5 MEDIUM

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.

Risk Scores

CVSS 3.1
5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected Products

VendorProductVersions
Debian:12linux6.1.27-1, 0, 6.1.27-1
Debian:14linux0, 0, 0
Debian:11linux5.10.136-1, 5.10.148-1, 5.10.162-1
Debian:13linux0, 0, 0

Timeline

  • Oct 4, 2025 CVE Published
  • Apr 28, 2026 CVE Updated
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