Buffer overflow in Qualcomm products - CVE-2021-1961

Vulnerability identifier: #VU56338

CSH Severity: Low

CVSS v4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2021-1961

CWE-ID: CWE-120

Exploitation vector: Local access

Exploit availability: Public exploit is available

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to lack of offset length check while updating the buffer value within the HLOS component. A local user can execute arbitrary code with elevated privileges.

SD855
SDX55
SD665
SD210
SD205
MSM8953
QCA6174A
MSM8996AU
MDM9650
MDM9640
MDM9206
MDM9150
APQ8096AU
APQ8053
SA6155P
APQ8009
QCS605
QCS405
QCA9377
QCA6574AU
WCD9340
WCD9335
WCD9330
WCD9326
SM7325
SM7250
SDXR25G
SDX55M
SDX12
SDA429W
SD8885G
SD870
SD8655G
WCD9341
SD780G
SD778G
SD768G
SD765G
SD765
SD750G
SD6905G
SD662
SD480
SD460
WCN3990
WSA8835
WSA8830
WSA8815
WSA8810
WCN6856
WCN6855
WCN6851
WCN6850
WCN6750
WCN6740
WCN3999
WCN3998
WCN3991
SD8CX
WCN3988
WCN3980
WCN3950
WCN3680B
WCN3680
WCN3660B
WCN3620
WCN3615
WCN3610
WCD9385
WCD9380
WCD9375
WCD9370
QCA6574
QCA6564AU
QCA6564A
QCA6436
QCA6431
QCA6430
QCA6426
QCA6421
QCA6420
QCA6391
QCA6390
QCA6574A
FSM10056
FSM10055
CSRA6640
CSRA6620
AR8035
AR8031
AQT1000
QCS6125
SD8C
SA8195P
SA8155P
SA8155
SA8150P
SA8145P
SA6155
SA6150P
SA6145P
Qualcomm215
QSM8250
QRB5165
QCS610
QCS410
QCM6125
QCA9367
QCA8337
QCA6696
QCA6595AU
QCA6595
QCA6584AU

Install updates from vendor's website.

• Exploit #8364 - CVE-2021-1961 (Exploit code for CVE-2021-1961) (September 14, 2022)

• https://www.qualcomm.com/company/product-security/bulletins/september-2021-bulletin
• https://source.codeaurora.org/quic/le/kernel/msm-4.19/commit/?id=edc0db63de9a0a7375bf05fafda3d47b558fd9ff

• Multiple vulnerabilities in Qualcomm chipsets