CVE Vulnerabilities

CVE-2023-32820

Reachable Assertion

Published: Oct 02, 2023 | Modified: Oct 03, 2023
CVSS 3.x
7.5
HIGH
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.x
RedHat/V2
RedHat/V3
Ubuntu

In wlan firmware, there is a possible firmware assertion due to improper input handling. This could lead to remote denial of service with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS07932637; Issue ID: ALPS07932637.

Weakness

The product contains an assert() or similar statement that can be triggered by an attacker, which leads to an application exit or other behavior that is more severe than necessary.

Affected Software

Name Vendor Start Version End Version
Yocto Linuxfoundation 3.1 (including) 3.1 (including)
Yocto Linuxfoundation 3.3 (including) 3.3 (including)
Iot_yocto Mediatek 23.0 (including) 23.0 (including)
Android Google 11.0 (including) 11.0 (including)
Android Google 12.0 (including) 12.0 (including)
Android Google 13.0 (including) 13.0 (including)
Linux_kernel Linux 4.19 (including) 4.19 (including)

Extended Description

While assertion is good for catching logic errors and reducing the chances of reaching more serious vulnerability conditions, it can still lead to a denial of service. For example, if a server handles multiple simultaneous connections, and an assert() occurs in one single connection that causes all other connections to be dropped, this is a reachable assertion that leads to a denial of service.

Potential Mitigations

References