PT-2021-8122 · Linux+6 · Linux Kernel+6
Jie Wang
·
Published
2021-12-12
·
Updated
2024-12-19
·
CVE-2021-47596
CVSS v3.1
7.8
High
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
The issue is related to a use-after-free bug in the
hclgevf send mbx msg function of the Hisilicon HNS3 network driver in the Linux kernel. This bug occurs because the hns3 remove function uninstalls the client instance first and then the acceleration engine device, but the acceleration engine device uninstall process still uses the freed netdevice to trace runtime information. The exploitation of this issue may allow an attacker to elevate their privileges.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
Use After Free
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Weakness Enumeration
Related Identifiers
Affected Products
Almalinux
Astra Linux
Linux Kernel
Red Hat
Red Os
Rocky Linux
Suse