Heap-based buffer overflow in Qualcomm products - CVE-2021-30311

Vulnerability identifier: #VU59184

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-2021-30311

CWE-ID: CWE-122

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a malicious application to escalate privileges on the system.

The vulnerability exists due to insufficient validation of user-supplied input in NR5G within the Modem component. A malicious application can trigger a heap-based buffer overflow and execute arbitrary code with elevated privileges.

SM6375
WCD9380
WCD9375
WCD9370
WCD9360
WCD9341
SM7325P
SM7315
SM7250P
WCD9385
SM6250
SM6225
SDXR25G
SDX65
SDX55M
SD8885G
WCN3950
WCN3980
WCN3988
WCN3991
WCN3998
WCN6740
WCN6750
WCN6850
WCN6851
WCN6855
WCN6856
WSA8810
WSA8815
WSA8830
WSA8835
QCA6696
SD8Gen15G
SA515M
QCX315
QCS6490
QCM6490
QCA8337
QCA8081
SD460
QCA6595AU
QCA6574A
QCA6436
QCA6426
QCA6391
QCA6390
AR8035
SD480
SD662
SD678
SD6905G
SD720G
SD750G
SD765
SD765G
SD768G
SD778G
SD780G
SD8655G
SD870
SDX55
SD888
SD675
QCA6574AU
SD665
SD730
Google Android

Install updates from vendor's website.

Google Android - addressed in versions 9 2022-01-05, 10 2022-01-05, 11 2022-01-05, 12 2022-01-05

• https://www.qualcomm.com/company/product-security/bulletins/january-2022-bulletin

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