NULL Pointer Dereference in Qualcomm products - CVE-2021-1936

Vulnerability identifier: #VU71909

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-2021-1936

CWE-ID: CWE-476

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 improper input validation in Modem. A remote attacker can perform a denial of service (DoS) attack.

SD780G
SDXR2 5G
SDXR1
SDX55M
SDX50M
SDW2500
SDA429W
SD888 5G
SD870
SD865 5G
SM4125
SD778G
SD768G
SD765G
SD765
SD750G
SD720G
SD690 5G
SD678
SD662
SD632
SD480
WCN3680
WSA8835
WSA8830
WCN6856
WCN6855
WCN6851
WCN6850
WCN6750
WCN6740
WCN3998
WCN3991
WCN3988
WCN3950
WCN3910
WCN3680B
SD460
WCN3660B
WCN3660
WCN3620
WCN3615
WCN3610
WCD9385
WCD9380
WCD9375
WCD9371
WCD9370
SM7325
SM7250
SM6250P
SM6250
QCA6390
QCA6595AU
QCA6595
QCA6574A
QCA6574
QCA6564AU
QCA6564A
QCA6564
QCA6436
QCA6431
QCA6430
QCA6426
QCA6421
QCA6420
QCA6391
QCA6696
QCA6335
QCA6320
QCA6310
PM8937
AQT1000
APQ8064AU
SA6155
SD439
SD429
SD 675
SD 636
SD 455
SA8195P
SA8155P
SA8155
SA8150P
SA8145P
APQ8009W
SA6150P
SA6145P
Qualcomm215
QCS6490
QCS6125
QCS610
QCS603
QCS4290
QCS2290
QCM6490
QCM6125
QCM4290
QCM2290
SDX55
SDM630
SDM429W
SD888
SD855
SD845
SD730
SD675
SD665
QCA6574AU
MSM8996AU
MSM8953
MSM8937
MSM8917
MSM8909W
APQ8096AU
APQ8053
APQ8017
SD450
SD210
SD205
SA6155P
QCS605

Install security update from vendor's website.

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

• Multiple vulnerabilities in Qualcomm chipsets