CVE-2021-47548

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.

CVSS v3 9.8 CRITICAL

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/22519eff7df2d88adcc2568d86046ce1e2b52803
https://git.kernel.org/stable/c/948968f8747650447c8f21c9fdba0e1973be040b
https://git.kernel.org/stable/c/99bb25cb6753beaf2c2bc37927c2ecc0ceff3f6d
https://git.kernel.org/stable/c/a66998e0fbf213d47d02813b9679426129d0d114
https://git.kernel.org/stable/c/abbd5faa0748d0aa95d5191d56ff7a17a6275bd1
https://git.kernel.org/stable/c/dd07f8971b81ad98cc754b179b331b57f35aa1ff
https://git.kernel.org/stable/c/fc7ffa7f10b9454a86369405d9814bf141b30627

Configurations

No configuration.

History

No history.

Information

Published : 2024-05-24 15:15

Updated : 2024-07-03 01:38

NVD link : CVE-2021-47548

Mitre link : CVE-2021-47548

CVE.ORG link : CVE-2021-47548

JSON object : View

Products Affected

No product.

CWE

CWE-129

Improper Validation of Array Index

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