CVE-2022-48949 Information

Description

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.

CVSS Vector

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

Reference

https://git.kernel.org/stable/c/a6629659af3f5c6a91e3914ea62554c975ab77f4 https://git.kernel.org/stable/c/ef1d739dd1f362aec081278ff92f943c31eb177a https://git.kernel.org/stable/c/c581439a977545d61849a72e8ed631cfc8a2a3c1 https://git.kernel.org/stable/c/f2479c3daaabccbac6c343a737615d0c595c6dc4 https://git.kernel.org/stable/c/367e1e3399dbc56fc669740c4ab60e35da632b0e https://git.kernel.org/stable/c/51fd5ede7ed42f272682a0c33d6f0767b3484a3d https://git.kernel.org/stable/c/c383c7c35c7bc15e07a04eefa060a8a80cbeae29 https://git.kernel.org/stable/c/de5dc44370fbd6b46bd7f1a1e00369be54a041c8

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

NONE

Base Score

NONE

Base Severity

5.5