#VU63103 Use of Out-of-range Pointer Offset in Qualcomm products - CVE-2021-35098

Cybersecurity Help s.r.o.

Published: 2022-05-12 | Updated: 2022-05-12

Vulnerability identifier: #VU63103

Vulnerability risk: Low

CVSSv4.0: 5.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-35098

CWE-ID: CWE-823

Exploitation vector: Local

Exploit availability: No

Vendor: Qualcomm

Description

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

The vulnerability exists due to an improper validation of session id in PCM routing process. A local appliction can trigger a use of out-of-range pointer offset and escalate privileges on the system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

APQ8053: All versions

APQ8096AU: All versions

AQT1000: All versions

AR8031: All versions

CSRA6620: All versions

CSRA6640: All versions

MDM9150: All versions

MDM9640: All versions

MDM9650: All versions

MSM8953: All versions

QCA6174A: All versions

QCA6390: All versions

QCA6391: All versions

QCA6420: All versions

QCA6426: All versions

QCA6430: All versions

QCA6436: All versions

QCA6574A: All versions

QCA6574AU: All versions

QCA9377: All versions

QCM4290: All versions

QCM6125: All versions

QCS405: All versions

QCS410: All versions

QCS4290: All versions

QCS603: All versions

QCS605: All versions

QCS610: All versions

QCS6125: All versions

QRB5165: All versions

QRB5165M: All versions

QRB5165N: All versions

Qualcomm215: All versions

SA515M: All versions

SD429: All versions

SD460: All versions

SD480: All versions

SD662: All versions

SD680: All versions

SD690 5G: All versions

SD695: All versions

SD750G: All versions

SD765: All versions

SD765G: All versions

SD768G: All versions

SD778G: All versions

SD780G: All versions

SD855: All versions

SD865 5G: All versions

SD870: All versions

SD888 5G: All versions

SDM429W: All versions

SDX12: All versions

SDX55: All versions

SDX55M: All versions

SDXR2 5G: All versions

SM7250P: All versions

SM7325P: All versions

WCD9326: All versions

WCD9335: All versions

WCD9341: All versions

WCD9370: All versions

WCD9375: All versions

WCD9380: All versions

WCD9385: All versions

WCN3615: All versions

WCN3620: All versions

WCN3660B: All versions

WCN3680: All versions

WCN3680B: All versions

WCN3950: All versions

WCN3980: All versions

WCN3988: All versions

WCN3990: All versions

WCN3991: All versions

WCN3998: All versions

WCN6740: All versions

WCN6750: All versions

WCN6850: All versions

WCN6851: All versions

WCN6855: All versions

WCN6856: All versions

WSA8810: All versions

WSA8815: All versions

WSA8830: All versions

WSA8835: All versions

External links
https://docs.qualcomm.com/bundle/publicresource/HD-10000-1/topics/may-2022-bulletin.html
https://source.codeaurora.org/quic/qsdk/platform/vendor/opensource/audio-kernel/commit/?id=1d3fb0289f8f1c7f53027933ea9b3922dfc58d90

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 Qualcomm chipsets