#VU52809 Buffer overflow in Qualcomm products - CVE-2020-11284

Cybersecurity Help s.r.o.

Published: 2021-05-03

Vulnerability identifier: #VU52809

Vulnerability risk: Medium

CVSSv4.0: 5.9 [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:Green]

CVE-ID: CVE-2020-11284

CWE-ID: CWE-119

Exploitation vector: Local

Exploit availability: No

Vendor: Qualcomm

Description

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

The vulnerability exists due to a boundary error in QTEE. Locked memory can be unlocked and modified by non secure boot loader through improper system call sequence making the memory region untrusted source of input for secure boot loader.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

AQT1000: All versions

AR8035: All versions

PM3003A: All versions

PM4125: All versions

PM4250: All versions

PM6125: All versions

PM6150: All versions

PM6150A: All versions

PM6150L: All versions

PM6350: All versions

PM640A: All versions

PM640L: All versions

PM640P: All versions

PM7250B: All versions

PM8004: All versions

PM8005: All versions

PM8008: All versions

PM8009: All versions

PM8150A: All versions

PM8150B: All versions

PM8150C: All versions

PM8150L: All versions

PM8250: All versions

PM8350: All versions

PM855: All versions

PM855B: All versions

PM855L: All versions

PM855P: All versions

PM8998: All versions

PMD9655: All versions

PMI632: All versions

PMI8998: All versions

PMK8002: All versions

PMK8003: All versions

PMM8195AU: All versions

PMM855AU: All versions

PMR525: All versions

PMX24: All versions

PMX55: All versions

QAT3522: All versions

QAT3550: All versions

QBT1500: All versions

QBT2000: All versions

QCA6390: All versions

QCA6391: All versions

QCA6420: All versions

QCA6421: All versions

QCA6426: All versions

QCA6430: All versions

QCA6431: All versions

QCA6436: All versions

QCA6574AU: All versions

QCA6595: All versions

QCA9984: All versions

QCM2290: All versions

QCM4290: All versions

QCS2290: All versions

QCS405: All versions

QCS4290: All versions

QET4101: All versions

QET5100: All versions

QET6100: All versions

QET6105: All versions

QFS2530: All versions

QFS2580: All versions

QPA4360: All versions

QPA5460: All versions

QPA6560: All versions

QSW8574: All versions

QTC410S: All versions

QTC800H: All versions

QTC800S: All versions

QTC801S: All versions

QTM525: All versions

SA6155P: All versions

SA8195P: All versions

SD8C: All versions

SD8CX: All versions

SD460: All versions

SD480: All versions

SD662: All versions

SD675: All versions

SD855: All versions

SD8655G: All versions

SD870: All versions

SD8885G: All versions

SDM830: All versions

SDR425: All versions

SDR660: All versions

SDR660G: All versions

SDR735: All versions

SDR735G: All versions

SDR8150: All versions

SDR8250: All versions

SDR865: All versions

SDX24: All versions

SDX55: All versions

SDX55M: All versions

SDXR25G: All versions

SM4125: All versions

SMB1351: All versions

SMB1354: All versions

SMB1355: All versions

SMB1390: All versions

SMB1396: All versions

SMR525: All versions

SMR526: All versions

SMR545: All versions

SMR546: All versions

WCD9340: All versions

WCD9341: All versions

WCD9360: All versions

WCD9370: All versions

WCD9375: All versions

WCD9380: All versions

WCD9385: All versions

WCN3910: All versions

WCN3950: All versions

WCN3980: All versions

WCN3988: All versions

WCN3990: All versions

WCN3991: All versions

WCN3998: All versions

WCN3999: All versions

WGR7640: All versions

WHS9410: All versions

WSA8810: All versions

WSA8815: All versions

WTR2965: All versions

WTR3925: All versions

WTR5975: All versions

External links
https://www.qualcomm.com/company/product-security/bulletins/may-2021-bulletin

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

Latest bulletins with this vulnerability

Multiple vulnerabilities in Google Android

Multiple vulnerabilities in Qualcomm chipsets