CVE-2024-53055

Summary

In the Linux kernel, the following vulnerability has been resolved:

wifi: iwlwifi: mvm: fix 6 GHz scan construction

If more than 255 colocated APs exist for the set of all APs found during 2.4/5 GHz scanning, then the 6 GHz scan construction will loop forever since the loop variable has type u8, which can never reach the number found when that's bigger than 255, and is stored in a u32 variable. Also move it into the loops to have a smaller scope.

Using a u32 there is fine, we limit the number of APs in the scan list and each has a limit on the number of RNR entries due to the frame size. With a limit of 1000 scan results, a frame size upper bound of 4096 (really it's more like ~2300) and a TBTT entry size of at least 11, we get an upper bound for the number of ~372k, well in the bounds of a u32.

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxeae94cf82d7456b57fa9fd55c1edb8a726dcc19c < 2ac15e5a8f42fed5d90ed9e1197600913678c50faffected
LinuxLinuxeae94cf82d7456b57fa9fd55c1edb8a726dcc19c < cde8a7eb5c6762264ff0f4433358e0a0d250c875affected
LinuxLinuxeae94cf82d7456b57fa9fd55c1edb8a726dcc19c < fc621e7a043de346c33bd7ae7e2e0c651d6152efaffected
LinuxLinuxeae94cf82d7456b57fa9fd55c1edb8a726dcc19c < 2ccd5badadab2d586e91546bf5af3deda07fef1faffected
LinuxLinuxeae94cf82d7456b57fa9fd55c1edb8a726dcc19c < 7245012f0f496162dd95d888ed2ceb5a35170f1aaffected
LinuxLinux5.11affected
LinuxLinux0 < 5.11unaffected
LinuxLinux5.15.171 <= 5.15.*unaffected
LinuxLinux6.1.116 <= 6.1.*unaffected
LinuxLinux6.6.60 <= 6.6.*unaffected
LinuxLinux6.11.7 <= 6.11.*unaffected
LinuxLinux6.12 <= *unaffected

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

CVE Program Container

Additional References

References