#VU68311 Buffer overflow in Linux kernel - CVE-2022-41674

Vulnerability identifier: #VU68311

Vulnerability risk: High

CVSSv4.0: 6.3 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2022-41674

CWE-ID: CWE-119

Exploitation vector: Local network

Exploit availability: No

Vulnerable software:
Linux kernel
Operating systems & Components / Operating system

Vendor: Linux Foundation

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error when processing WLAN frames within the ieee80211_bss_info_update() function in net/mac80211/scan.c in Linux kernel. A remote attacker on the local network can send specially crafted WLAN frames to the affected system, trigger memory corruption and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Linux kernel: All versions

---

External links
http://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/log/net/mac80211/scan.c
http://www.openwall.com/lists/oss-security/2022/10/13/5
http://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless.git/commit/?id=aebe9f4639b13a1f4e9a6b42cdd2e38c617b442d
http://bugzilla.suse.com/show_bug.cgi?id=1203770
http://www.openwall.com/lists/oss-security/2022/10/13/2

---

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.