Out-of-bounds read in Qualcomm products - CVE-2021-1943
Published: July 5, 2021
Vulnerability identifier: #VU54541
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-2021-1943
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary condition caused by the improper validation of TBTT count and length while parsing the beacon response in WLAN Host Communication component. A remote attacker can send specially crafted traffic to the device, trigger out-of-bounds read error and perform a denial of service attack.
Affected software
SD670
SD636
SD675
SD665
SD710
SD730
SA6155P
SD835
SD845
SD855
SD888
SDM630
SDX55
IPQ8074
MSM8953
IPQ4019
IPQ8064
QCA9980
QCA6574AU
APQ8053
QCA9531
QCA9558
SA8155
SA8155P
SA8195P
SD460
SD480
SD660
SD662
SA8150P
SD678
SD6905G
SD720G
SD750G
SD765
SD765G
SD768G
SD778G
QCN9070
QCN5500
QCN5502
QCN5550
QCN6023
QCN6024
QCN6122
QCN9000
QCN9012
QCN9022
QCN9024
SD780G
QCN9072
QCN9074
QCN9100
SA415M
SA515M
SA6145P
SA6150P
SA6155
SA8145P
WCN3991
WCD9375
WCD9380
WCD9385
WCN3615
WCN3680B
WCN3910
WCN3950
WCN3980
WCN3988
WCN3990
WCD9370
WCN3998
WCN6740
WCN6750
WCN6850
WCN6851
WCN6856
WSA8810
WSA8815
WSA8830
WSA8835
SDX55M
SD8655G
SD870
SD8885G
SDX50M
QCN5164
SDXR25G
SM4125
SM6250
SM7250P
SM7315
SM7325P
WCD9326
WCD9335
WCD9340
WCD9341
IPQ8174
IPQ8071A
IPQ8072
IPQ8072A
IPQ8074A
IPQ8076
IPQ8076A
IPQ8078
IPQ8078A
IPQ8173
IPQ8071
PMP8074
QCA4024
QCA6175A
QCA6390
QCA6391
QCA6420
QCA6426
QCA6428
QCA6430
IPQ5028
AQT1000
AR9380
CSR8811
CSRB31024
IPQ4018
IPQ4028
IPQ4029
IPQ5010
IPQ5018
QCA6436
IPQ6000
IPQ6005
IPQ6010
IPQ6018
IPQ6028
IPQ8065
IPQ8068
IPQ8070
IPQ8070A
QCN5021
QCA9889
QCA9896
QCA9898
QCA9982
QCA9984
QCA9985
QCA9990
QCA9992
QCA9994
QCA9888
QCN5022
QCN5024
QCN5052
QCN5054
QCN5064
QCN5121
QCN5122
QCN5124
QCN5152
QCN5154
QCA7500
QCA6438
QCA6564A
QCA6564AU
QCA6574
QCA6574A
QCA6584AU
QCA6595
QCA6595AU
QCA6696
QCA8072
QCA8075
QCA8081
QCA9561
QCA9563
QCA9880
QCA9886
QCA9887
SD636
SD675
SD665
SD710
SD730
SA6155P
SD835
SD845
SD855
SD888
SDM630
SDX55
IPQ8074
MSM8953
IPQ4019
IPQ8064
QCA9980
QCA6574AU
APQ8053
QCA9531
QCA9558
SA8155
SA8155P
SA8195P
SD460
SD480
SD660
SD662
SA8150P
SD678
SD6905G
SD720G
SD750G
SD765
SD765G
SD768G
SD778G
QCN9070
QCN5500
QCN5502
QCN5550
QCN6023
QCN6024
QCN6122
QCN9000
QCN9012
QCN9022
QCN9024
SD780G
QCN9072
QCN9074
QCN9100
SA415M
SA515M
SA6145P
SA6150P
SA6155
SA8145P
WCN3991
WCD9375
WCD9380
WCD9385
WCN3615
WCN3680B
WCN3910
WCN3950
WCN3980
WCN3988
WCN3990
WCD9370
WCN3998
WCN6740
WCN6750
WCN6850
WCN6851
WCN6856
WSA8810
WSA8815
WSA8830
WSA8835
SDX55M
SD8655G
SD870
SD8885G
SDX50M
QCN5164
SDXR25G
SM4125
SM6250
SM7250P
SM7315
SM7325P
WCD9326
WCD9335
WCD9340
WCD9341
IPQ8174
IPQ8071A
IPQ8072
IPQ8072A
IPQ8074A
IPQ8076
IPQ8076A
IPQ8078
IPQ8078A
IPQ8173
IPQ8071
PMP8074
QCA4024
QCA6175A
QCA6390
QCA6391
QCA6420
QCA6426
QCA6428
QCA6430
IPQ5028
AQT1000
AR9380
CSR8811
CSRB31024
IPQ4018
IPQ4028
IPQ4029
IPQ5010
IPQ5018
QCA6436
IPQ6000
IPQ6005
IPQ6010
IPQ6018
IPQ6028
IPQ8065
IPQ8068
IPQ8070
IPQ8070A
QCN5021
QCA9889
QCA9896
QCA9898
QCA9982
QCA9984
QCA9985
QCA9990
QCA9992
QCA9994
QCA9888
QCN5022
QCN5024
QCN5052
QCN5054
QCN5064
QCN5121
QCN5122
QCN5124
QCN5152
QCN5154
QCA7500
QCA6438
QCA6564A
QCA6564AU
QCA6574
QCA6574A
QCA6584AU
QCA6595
QCA6595AU
QCA6696
QCA8072
QCA8075
QCA8081
QCA9561
QCA9563
QCA9880
QCA9886
QCA9887
How to mitigate CVE-2021-1943
Install updates from vendor's website.