Instituto Nacional de ciberseguridad. Sección Incibe
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CVE-2021-46920

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
27/02/2024
Last modified:
29/10/2024

Description

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> dmaengine: idxd: Fix clobbering of SWERR overflow bit on writeback<br /> <br /> Current code blindly writes over the SWERR and the OVERFLOW bits. Write<br /> back the bits actually read instead so the driver avoids clobbering the<br /> OVERFLOW bit that comes after the register is read.

Impact

Vector 3.x
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N CVSS v3.1 Severity and Metrics:

Base Score: 5.50 MEDIUM
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

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

Base Score 3.x
5.50
Severity 3.x
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 5.6.0 (including) 5.10.32 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 5.11.0 (including) 5.11.16 (excluding)

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


References to Advisories, Solutions, and Tools