#VU69530 NULL pointer dereference in CBFS Filter


Published: 2022-11-23

Vulnerability identifier: #VU69530

Vulnerability risk: Low

CVSSv3.1: 5.4 [CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-43590

CWE-ID: CWE-476

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
CBFS Filter
Universal components / Libraries / Libraries used by multiple products

Vendor: Callback Technologies

Description

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

The vulnerability exists due to a NULL pointer dereference error in the handle_ioctl_0x830a0_systembuffer functionality. A local attacker can send a specially crafted I/O request packet (IRP) and perform a denial of service (DoS) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

CBFS Filter: 20.0.8317


External links
http://www.talosintelligence.com/vulnerability_reports/TALOS-2022-1649


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.


Latest bulletins with this vulnerability