#VU85422 NULL pointer dereference in Linux kernel - CVE-2023-7042
Vulnerability identifier: #VU85422
Vulnerability 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:
CWE-ID:
CWE-476
Exploitation vector: Local
Exploit availability: No
Vulnerable software:
Linux kernel
Operating systems & Components /
Operating system
Vendor: Linux Foundation
Description
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error within the ath10k_wmi_tlv_op_pull_mgmt_tx_compl_ev() function in drivers/net/wireless/ath/ath10k/wmi-tlv.c. A local user can pass specially crafted data to the driver and perform a denial of service (DoS) attack.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
Linux kernel: All versions
External links
https://access.redhat.com/security/cve/CVE-2023-7042
https://bugzilla.redhat.com/show_bug.cgi?id=2255497
https://patchwork.kernel.org/project/linux-wireless/patch/20231208043433.271449-1-hdthky0@gmail.com/
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.
