Type conversion in Qualcomm products - CVE-2021-30300

Vulnerability identifier: #VU59190

CSH Severity: Medium

CVSS v4: 8.7 [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]

CVE-ID: CVE-2021-30300

CWE-ID: CWE-704

Exploitation vector: Remote access

Exploit availability: No public exploit available

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

The vulnerability exists due to a type conversion error in LTE within the Modem component, caused by incorrectly decoding hex data for the SIB2 OTA message and assigning a garbage value to choice when processing the SRS configuration. A remote attacker can pass specially crafted data to the system, trigger a type conversion error and perform a denial of service (DoS) attack.

SD765
SDX55M
SDW2500
SDA429W
SD870
SD8655G
SD7c
SD768G
SD765G
SDX65
SD750G
SD720G
SD6905G
SD678
SD662
SD480
SD460
SD429
SD8cxGen2
WCD9380
WSA8835
WSA8830
WCN6856
WCN6855
WCN6851
WCN6850
WCN3991
WCN3988
WCN3950
WCN3910
WCN3620
WCN3610
WCD9385
SD8Gen15G
WCD9375
WCD9370
WCD9360
WCD9330
WCD9306
SM7250P
SM6375
SM6250P
SM6250
SM6225
SDXR25G
SDXR1
MDM9628
QCA6574A
QCA6574
QCA6564AU
QCA6564A
QCA6436
QCA6426
QCA6391
QCA6390
QCA4004
MDM9207
MDM9205
MDM8207
FSM10056
FSM10055
CSRB31024
AR8035
QCS4290
SA8195P
SA8155P
SA8150P
SA8145P
SA6150P
SA6145P
SA515M
SA415M
QSW8573
QCX315
QCS610
APQ8009W
QCS410
QCS2290
QCM4290
QCM2290
QCA9367
QCA8337
QCA8081
QCA6696
QCA6595AU
QCA6584AU
QCA6584
SDX55
SDX24
SDX20
SDM429W
SD850
SD730
SD665
SD210
SD205
QCA6174A
MSM8996AU
MSM8909W
MDM9640
QCA6574AU
MDM9607
MDM9206
MDM9150
APQ8096AU
APQ8017
SD675
SA6155P
QCA9377
Google Android

Install updates from vendor's website.

Google Android - addressed in versions 9 2022-01-05, 10 2022-01-05, 11 2022-01-05, 12 2022-01-05

• https://www.qualcomm.com/company/product-security/bulletins/january-2022-bulletin

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