#VU63087 Time-of-check Time-of-use (TOCTOU) Race Condition in Qualcomm products - CVE-2021-35082
Published: May 12, 2022 / Updated: May 12, 2022
Vulnerability identifier: #VU63087
Vulnerability risk: High
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2021-35082
CWE-ID: CWE-367
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
MDM9206
QCA9377
QCA9367
MDM9206
QCA9377
QCA9367
Software vendor:
Qualcomm
Qualcomm
Description
The vulnerability allows a remote attacker to compromise the affected device.
The vulnerability exists due to race condition between PDCP and RRC tasks within NB1 component. A remote attacker can send specially crafted traffic after a valid RRC security mode command packet has been received and execute arbitrary code on the system.
Remediation
Install updates from vendor's website.