CVE-2022-48742

Severity CVSS v4.0:

Pending analysis

Type:

CWE-416 Use After Free

Publication date:

20/06/2024

Last modified:

20/08/2024

Description

In the Linux kernel, the following vulnerability has been resolved: rtnetlink: make sure to refresh master_dev/m_ops in __rtnl_newlink() While looking at one unrelated syzbot bug, I found the replay logic in __rtnl_newlink() to potentially trigger use-after-free. It is better to clear master_dev and m_ops inside the loop, in case we have to replay it.

Impact

Vector 3.x

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.80 HIGH
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x

7.80

Severity 3.x

HIGH

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:o:linux:linux_kernel::::::::	3.14 (including)	4.9.300 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.10 (including)	4.14.265 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.15 (including)	4.19.228 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.20 (including)	5.4.177 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.5 (including)	5.10.97 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.11 (including)	5.15.20 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.16 (including)	5.16.6 (excluding)

To consult the complete list of CPE names with products and versions, see this page

CVE-2022-48742

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools