CVE-2021-47548

Severity CVSS v4.0:

Pending analysis

Type:

Unavailable / Other

Publication date:

24/05/2024

Last modified:

01/04/2025

Description

In the Linux kernel, the following vulnerability has been resolved: ethernet: hisilicon: hns: hns_dsaf_misc: fix a possible array overflow in hns_dsaf_ge_srst_by_port() The if statement: if (port >= DSAF_GE_NUM) return; limits the value of port less than DSAF_GE_NUM (i.e., 8). However, if the value of port is 6 or 7, an array overflow could occur: port_rst_off = dsaf_dev->mac_cb[port]->port_rst_off; because the length of dsaf_dev->mac_cb is DSAF_MAX_PORT_NUM (i.e., 6). To fix this possible array overflow, we first check port and if it is greater than or equal to DSAF_MAX_PORT_NUM, the function returns.

Impact

Vector 3.x

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

Base Score: 9.80 CRITICAL
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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

Base Score 3.x

9.80

Severity 3.x

CRITICAL

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:o:linux:linux_kernel::::::::		4.9.292 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.10 (including)	4.14.257 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.15 (including)	4.19.220 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.20 (including)	5.4.164 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.5 (including)	5.10.84 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.11 (including)	5.15.7 (excluding)
cpe:2.3:o:linux:linux_kernel:5.16:rc1::::::

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

CVE-2021-47548

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools