Improper Validation of Array Index in Qualcomm products - CVE-2021-35121
Published: June 7, 2022
Vulnerability identifier: #VU64029
CSH Severity: Low
CVSS v4: 8.4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-35121
CWE-ID: CWE-129
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local attacker to compromise vulnerable system.
The vulnerability exists due to a improper validation of array index in MM Framework. A local administrator can trigger use-after-free condition in the Synx driver and execute arbitrary code on the target system.
Affected software
WCN3910
SDX55M
SDXR2 5G
SM7250P
WCD9326
WCD9370
WCD9375
WCD9380
WCD9385
WCN3615
WCN3680B
SD870
WCN3950
WCN3988
WCN3991
WCN3998
WCN6850
WCN6851
WSA8810
WSA8815
WSA8830
WSA8835
QRB5165M
QCA6390
QCA6391
QCA6426
QCA6436
QCM2290
QCM4290
QCS2290
QCS4290
QRB5165
QRB5165N
SD460
SD662
SD680
SD690 5G
SD750G
SD765
SD765G
SD768G
SD865 5G
Pixel
MSM8953
APQ8053
SDX55M
SDXR2 5G
SM7250P
WCD9326
WCD9370
WCD9375
WCD9380
WCD9385
WCN3615
WCN3680B
SD870
WCN3950
WCN3988
WCN3991
WCN3998
WCN6850
WCN6851
WSA8810
WSA8815
WSA8830
WSA8835
QRB5165M
QCA6390
QCA6391
QCA6426
QCA6436
QCM2290
QCM4290
QCS2290
QCS4290
QRB5165
QRB5165N
SD460
SD662
SD680
SD690 5G
SD750G
SD765
SD765G
SD768G
SD865 5G
Pixel
MSM8953
APQ8053
How to mitigate CVE-2021-35121
Install updates from vendor's website.
Pixel - update to 12L 2022-06-05