Input validation error in Linux kernel mac80211

1) Input validation error

EUVDB-ID: #VU94141

Risk: Low

CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2024-26682

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to improper input validation within the ieee80211_mgd_csa_present(), ieee80211_mgd_auth() and ieee80211_mgd_assoc() functions in net/mac80211/mlme.c. A local user can perform a denial of service (DoS) attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Linux kernel: 6.7 - 6.8 rc5

CPE2.3

• cpe:2.3:o:linux_foundation:linux_kernel:6.7:*:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:6.7:rc1:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:6.7:rc2:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:6.7:rc3:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:6.7:rc5:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:6.7:rc6:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:6.7:rc7:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:6.7.1:*:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:6.7.2:*:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:6.7.3:*:*:*:*:*:*:*

External links

https://git.kernel.org/stable/c/ea88bde8e3fefbe4268f6991375dd629895a090a
https://git.kernel.org/stable/c/35e2385dbe787936c793d70755a5177d267a40aa
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.7.5
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.8

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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