Double Free in Qualcomm products - CVE-2021-1934

Vulnerability identifier: #VU56344

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-2021-1934

CWE-ID: CWE-415

Exploitation vector: Local access

Exploit availability: No public exploit available

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

The vulnerability exists within Digital Rights Management in Content Protection due to improper check when application loader object is explicitly destructed while application is unloading. A local user can trigger memory corruption and execute arbitrary code with elevated privileges.

SD8885G
SM7325
SM7250
SM6250P
SM6250
SM4125
SDXR25G
SDXR1
SDX55M
SDX50M
WCD9340
SD870
SD8655G
SD780G
SD778G
SD768G
SD765G
SD765
SD750G
WCN3991
WSA8835
WSA8830
WSA8815
WSA8810
WCN6856
WCN6855
WCN6851
WCN6850
WCN6750
WCN6740
WCN3998
WCN3988
WCN3950
WCN3910
WCN3680B
WCN3680
WCN3660B
WCN3615
WCD9385
WCD9380
WCD9375
WCD9370
QCA6430
QCM4290
QCA6696
QCA6595AU
QCA6595
QCA6574A
QCA6574
QCA6564AU
QCA6564A
QCA6436
QCA6431
QCM6125
QCA6426
QCA6421
QCA6420
QCA6391
QCA6390
QCA6320
QCA6310
AQT1000
SD720G
SD6905G
SD678
SD662
SD632
SD460
SD439
SD429
SA8195P
SA8155P
SA8155
SA8150P
SA6155
SA6145P
Qualcomm215
QCS6125
QCS4290
SDX55
SDM630
SD888
SD855
SD835
SD730
QCA6574AU
MSM8953
MSM8917
APQ8053
SD636
SD670
SD665
SD675
APQ8017
SA6155P
QCS605
Google Android

Install updates from vendor's website.

Google Android - addressed in versions 8.1 2021-09-05, 9 2021-09-05, 10 2021-09-05, 11 2021-09-05

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

• Multiple vulnerabilities in Qualcomm chipsets
• Multiple vulnerabilities in Google Android