#VU104925 Input validation error in Linux kernel - CVE-2022-49537

Vulnerability identifier: #VU104925

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: CVE-2022-49537

CWE-ID: CWE-20

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 improper input validation within the lpfc_update_cmf_cmpl() and lpfc_update_cmf_cmd() functions in drivers/scsi/lpfc/lpfc_scsi.c. A local user can perform a denial of service (DoS) attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux kernel: All versions

---

External links
https://git.kernel.org/stable/c/517e0835cfb2007713ff16c4fb8479f08b16aec7
https://git.kernel.org/stable/c/ae373d66c427812754db5292eb1481b181daf9ce
https://git.kernel.org/stable/c/cd7f899de4b1b829125d72ee6fbfd878b637b815
https://git.kernel.org/stable/c/d6d45f67a11136cb88a70a29ab22ea6db8ae6bd5

---

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.