#VU59184 Heap-based buffer overflow in Qualcomm products - CVE-2021-30311

Vulnerability identifier: #VU59184

Vulnerability risk: Low

CVSSv4.0: 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/E:U/U:Clear

CVE-ID: CVE-2021-30311

CWE-ID: CWE-122

Exploitation vector: Local access

Exploit availability: No public exploit available

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

Software vendor:
Qualcomm

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.

Install updates from vendor's website.

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