Type conversion in Qualcomm products - CVE-2021-1923

Vulnerability identifier: #VU55524

CSH Severity: Low

CVSS v4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2021-1923

CWE-ID: CWE-704

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to incorrect pointer argument is passed to trusted application TA in HLOS subsystem. A local user can run a specially crafted program to execute arbitrary code with elevated privileges.

SDM830
WCD9340
SM7325
SM7250
SM6250
SM4125
SDXR25G
SDX55M
SDX50M
WCD9360
SD8885G
SD870
SD8655G
SD780G
SD778G
SD768G
SD765G
SD765
WCN6740
WSA8835
WSA8830
WSA8815
WSA8810
WHS9410
WCN6856
WCN6855
WCN6851
WCN6850
WCN6750
SD750G
WCN3998
WCN3991
WCN3988
WCN3950
WCN3910
WCD9385
WCD9380
WCD9375
WCD9370
QCA6574A
SA6145P
QSM8350
QCS4290
QCS2290
QCM4290
QCM2290
QCA6696
QCA6595AU
QCA6595
SA6150P
QCA6574
QCA6436
QCA6431
QCA6430
QCA6426
QCA6421
QCA6420
QCA6391
QCA6390
SD8CX
SD720G
SD6905G
SD678
SD662
SD480
SD460
AQT1000
SD8C
SA8195P
SA8155P
SA8155
SA8150P
SA8145P
SA6155
SDX55
SDX24
SD855
QCA6574AU
SD730
SD670
SD665
SD675
SA6155P
Google Android

Install updates from vendor's website.

Google Android - addressed in versions 8.1 2021-09-05, 9 2021-09-05, 10 2021-09-05, 11 2021-09-05

• https://www.qualcomm.com/company/product-security/bulletins/august-2021-bulletin

• Multiple vulnerabilities in Qualcomm chipsets
• Multiple vulnerabilities in Google Android