#VU74321 Time-of-check Time-of-use (TOCTOU) Race Condition in Qualcomm products - CVE-2022-33270

Vulnerability identifier: #VU74321

Vulnerability risk: Medium

CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

CVE-ID: CVE-2022-33270

CWE-ID: CWE-367

Exploitation vector: Remote access

Exploit availability: No public exploit available

Vulnerable software:
AR8035
FastConnect 6200
FastConnect 6700
FastConnect 6900
FastConnect 7800
QCA6391
QCA6595AU
QCA6696
QCA6698AQ
QCA8081
QCA8337
QCM6490
QCN6024
QCN9024
QCS6490
SD778G
SDX57M
SM7325P
Snapdragon 4 Gen 1 Mobile Platform
Snapdragon 480 5G Mobile Platform
Snapdragon 480+ 5G Mobile Platform (SM4350-AC)
Snapdragon 695 5G Mobile Platform
Snapdragon 778G 5G Mobile Platform
Snapdragon 778G+ 5G Mobile Platform (SM7325-AE)
Snapdragon 782G Mobile Platform (SM7325-AF)
Snapdragon 8 Gen 1 Mobile Platform
Snapdragon 888 5G Mobile Platform
Snapdragon 888+ 5G Mobile Platform (SM8350-AC)
Snapdragon Auto 5G Modem-RF
Snapdragon X65 5G Modem-RF System
Snapdragon X70 Modem-RF System
WCD9370
WCD9375
WCD9380
WCD9385
WCN3988
WSA8810
WSA8815
WSA8830
WSA8835

Software vendor:
Qualcomm

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

The vulnerability exists due to improper input validation in Modem. A remote attacker can perform a denial of service (DoS) attack.

Install security update from vendor's website.

• https://docs.qualcomm.com/product/publicresources/securitybulletin/april-2023-bulletin.html