CVE-2022-49478

Severity CVSS v4.0:

Pending analysis

Type:

Unavailable / Other

Publication date:

26/02/2025

Last modified:

17/03/2025

Description

In the Linux kernel, the following vulnerability has been resolved: media: pvrusb2: fix array-index-out-of-bounds in pvr2_i2c_core_init Syzbot reported that -1 is used as array index. The problem was in missing validation check. hdw->unit_number is initialized with -1 and then if init table walk fails this value remains unchanged. Since code blindly uses this member for array indexing adding sanity check is the easiest fix for that. hdw->workpoll initialization moved upper to prevent warning in __flush_work.

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::::::::	2.6.18 (including)	4.9.318 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.10 (including)	4.14.283 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.15 (including)	4.19.247 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.20 (including)	5.4.198 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.5 (including)	5.10.121 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.11 (including)	5.15.46 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.16 (including)	5.17.14 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.18 (including)	5.18.3 (excluding)

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

CVE-2022-49478

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools