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CVE-2023-53589

wifi: iwlwifi: mvm: don't trust firmware n_channels

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 5.4.244, 5.10.181, 5.15.113, 6.1.30, 6.3.4
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: no
  • Technical impact: total

Summary

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.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: none · Automatable: no · Technical impact: total

  3. Record last updated

Affected versions

  • Linux Linux

    From dcaf9f5ecb6f395152609bdc40660d9b593dca63 · fixed in e519a404a5bbba37693cb10fa61794a5fce4fd9b; From dcaf9f5ecb6f395152609bdc40660d9b593dca63 · fixed in d0d39bed9e95f27a246be91c5929254ac043ed30; From dcaf9f5ecb6f395152609bdc40660d9b593dca63 · fixed in 05ad5a4d421ce65652fcb24d46b7e273130240d6; From dcaf9f5ecb6f395152609bdc40660d9b593dca63 · fixed in 557ba100d8cf3661ff8d71c0b4a2cba8db555ec2; From dcaf9f5ecb6f395152609bdc40660d9b593dca63 · fixed in c176f03350954b795322de0bfe1d7b514db41f45; From dcaf9f5ecb6f395152609bdc40660d9b593dca63 · fixed in 682b6dc29d98e857e6ca4bbc077c7dc2899b7473

  • Linux Linux

    4.1

  • KernelLinux

    From 4.1.0 · fixed in 5.4.244; From 5.5.0 · fixed in 5.10.181; From 5.11.0 · fixed in 5.15.113; From 5.16.0 · fixed in 6.1.30; From 6.2.0 · fixed in 6.3.4

References 6

git.kernel.org