Buffer over-read in Qualcomm products - CVE-2021-1977

Vulnerability identifier: #VU71925

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-2021-1977

CWE-ID: CWE-126

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 WLAN. A remote attacker can perform a denial of service (DoS) attack.

SD845
SDX55
SDX20
SD888
SD855
SD835
SD675
SD665
MDM9650
QCA6174A
MSM8996AU
MSM8953
MDM9607
MDM9206
MDM9150
APQ8096AU
APQ8053
APQ8017
QCS605
SA6155P
APQ8009
QCS405
QCA9379
QCA9377
QCA6574AU
SM7250
SM6250
SM4125
SDXR2 5G
SDXR1
SDX55M
SDX20M
SDX12
SD888 5G
SD870
SD865 5G
SM7325
SD820
SD780G
SD778G
SD768G
SD765G
SD765
SD750G
SD720G
SD690 5G
SD678
SD662
SD660
WCN3980
WSA8835
WSA8830
WSA8815
WSA8810
WCN6856
WCN6855
WCN6851
WCN6850
WCN6750
WCN6740
WCN3999
WCN3998
WCN3991
WCN3990
WCN3988
SD460
WCN3950
WCN3910
WCN3680B
WCN3660B
WCN3615
WCN3610
WCD9385
WCD9380
WCD9375
WCD9370
WCD9341
WCD9340
WCD9335
WCD9330
WCD9326
QCA6574
QCA6564AU
QCA6564A
QCA6436
QCA6426
QCA6391
QCA6390
QCA6335
QCA6320
QCA6310
QCA6175A
QCA4020
QCA6574A
MDM9628
MDM9626
MDM9250
CSRB31024
CSRA6640
CSRA6620
AR8035
AR8031
APQ8064AU
SD 675
SA8195P
SA8155P
SA8155
SA8150P
SA8145P
SA6155
SA6150P
SA6145P
SA515M
SA415M
QRB5165
QCS6125
QCS610
QCS603
QCS4290
QCS410
QCM6125
QCM4290
QCA9367
QCA8337
QCA6696
QCA6595AU
QCA6595
QCA6584AU

Install security update from vendor's website.

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

• Multiple vulnerabilities in Qualcomm chipsets