#VU91299 Stack-based buffer overflow in Linux kernel - CVE-2022-48632

Vulnerability identifier: #VU91299

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-2022-48632

CWE-ID: CWE-121

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 stack overflow within the mlxbf_i2c_smbus_start_transaction() function in drivers/i2c/busses/i2c-mlxbf.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/48ee0a864d1af02eea98fc825cc230d61517a71e
https://git.kernel.org/stable/c/dc2a0c587006f29b724069740c48654b9dcaebd2
https://git.kernel.org/stable/c/3b5ab5fbe69ebbee5692c72b05071a43fc0655d8
https://git.kernel.org/stable/c/de24aceb07d426b6f1c59f33889d6a964770547b

---

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.