SB20240620108 - Improper initialization in Linux kernel wireless

Description

This security bulletin contains information about 1 vulnerability.

1) Improper initialization (CVE-ID: CVE-2021-47194)

CWE-ID: CWE-665 - Improper Initialization

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to execute arbitrary code.

The vulnerability exists due to improper initialization error within the cfg80211_change_iface() function in net/wireless/util.c. A local user can execute arbitrary code.

Remediation

Install update from vendor's website.

References

• https://git.kernel.org/stable/c/8f06bb8c216bcd172394f61e557727e691b4cb24
• https://git.kernel.org/stable/c/0738cdb636c21ab552eaecf905efa4a6070e3ebc
• https://git.kernel.org/stable/c/4e458abbb4a523f1413bfe15c079cf4e24c15b21
• https://git.kernel.org/stable/c/b8a045e2a9b234cfbc06cf36923886164358ddec
• https://git.kernel.org/stable/c/52affc201fc22a1ab9a59ef0ed641a9adfcb8d13
• https://git.kernel.org/stable/c/7b97b5776daa0b39dbdadfea176f9cc0646d4a66
• https://git.kernel.org/stable/c/5a9b671c8d74a3e1b999e7a0c7f366079bcc93dd
• https://git.kernel.org/stable/c/563fbefed46ae4c1f70cffb8eb54c02df480b2c2
• https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.256
• https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.218
• https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.293
• https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.291
• https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.82
• https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.5
• https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16
• https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.162