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

Vulnerability identifier: #VU71925

CSH Severity: 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-2021-1977

CWE-ID: CWE-126

Exploitation vector: Remote access

Exploit availability: No public exploit available

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

Install security update from vendor's website.

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