CVE-2022-48949

Summary

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

igb: Initialize mailbox message for VF reset

When a MAC address is not assigned to the VF, that portion of the message sent to the VF is not set. The memory, however, is allocated from the stack meaning that information may be leaked to the VM. Initialize the message buffer to 0 so that no information is passed to the VM in this case.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux6ddbc4cf1f4d5a3a58b4223c80881f299dae3774 < a6629659af3f5c6a91e3914ea62554c975ab77f4affected
LinuxLinux6ddbc4cf1f4d5a3a58b4223c80881f299dae3774 < ef1d739dd1f362aec081278ff92f943c31eb177aaffected
LinuxLinux6ddbc4cf1f4d5a3a58b4223c80881f299dae3774 < c581439a977545d61849a72e8ed631cfc8a2a3c1affected
LinuxLinux6ddbc4cf1f4d5a3a58b4223c80881f299dae3774 < f2479c3daaabccbac6c343a737615d0c595c6dc4affected
LinuxLinux6ddbc4cf1f4d5a3a58b4223c80881f299dae3774 < 367e1e3399dbc56fc669740c4ab60e35da632b0eaffected
LinuxLinux6ddbc4cf1f4d5a3a58b4223c80881f299dae3774 < 51fd5ede7ed42f272682a0c33d6f0767b3484a3daffected
LinuxLinux6ddbc4cf1f4d5a3a58b4223c80881f299dae3774 < c383c7c35c7bc15e07a04eefa060a8a80cbeae29affected
LinuxLinux6ddbc4cf1f4d5a3a58b4223c80881f299dae3774 < de5dc44370fbd6b46bd7f1a1e00369be54a041c8affected
LinuxLinux4.0affected
LinuxLinux0 < 4.0unaffected
LinuxLinux4.14.303 <= 4.14.*unaffected
LinuxLinux4.19.270 <= 4.19.*unaffected
LinuxLinux5.4.229 <= 5.4.*unaffected
LinuxLinux5.10.161 <= 5.10.*unaffected
LinuxLinux5.15.85 <= 5.15.*unaffected
LinuxLinux6.0.15 <= 6.0.*unaffected
LinuxLinux6.1.1 <= 6.1.*unaffected
LinuxLinux6.2 <= *unaffected

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

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

References