Vulnerability identifier: #VU59192

Vulnerability risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-30307

CWE-ID: CWE-617

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
AR8035
Mobile applications / Mobile firmware & hardware
CSRB31024
Mobile applications / Mobile firmware & hardware
QCA6390
Mobile applications / Mobile firmware & hardware
QCA6391
Mobile applications / Mobile firmware & hardware
QCA6426
Mobile applications / Mobile firmware & hardware
QCA6436
Mobile applications / Mobile firmware & hardware
QCA6564AU
Mobile applications / Mobile firmware & hardware
QCA6574A
Mobile applications / Mobile firmware & hardware
QCA6595AU
Mobile applications / Mobile firmware & hardware
QCA6696
Mobile applications / Mobile firmware & hardware
QCA8081
Mobile applications / Mobile firmware & hardware
QCA8337
Mobile applications / Mobile firmware & hardware
QCM2290
Mobile applications / Mobile firmware & hardware
QCM4290
Mobile applications / Mobile firmware & hardware
QCM6490
Mobile applications / Mobile firmware & hardware
QCS2290
Mobile applications / Mobile firmware & hardware
QCS410
Mobile applications / Mobile firmware & hardware
QCS4290
Mobile applications / Mobile firmware & hardware
QCS610
Mobile applications / Mobile firmware & hardware
QCS6490
Mobile applications / Mobile firmware & hardware
QCX315
Mobile applications / Mobile firmware & hardware
SA415M
Mobile applications / Mobile firmware & hardware
SA515M
Mobile applications / Mobile firmware & hardware
SA6145P
Mobile applications / Mobile firmware & hardware
SA6150P
Mobile applications / Mobile firmware & hardware
SA8145P
Mobile applications / Mobile firmware & hardware
SA8150P
Mobile applications / Mobile firmware & hardware
SA8155P
Mobile applications / Mobile firmware & hardware
SA8195P
Mobile applications / Mobile firmware & hardware
SD8Gen15G
Mobile applications / Mobile firmware & hardware
SD8cxGen2
Mobile applications / Mobile firmware & hardware
SD460
Mobile applications / Mobile firmware & hardware
SD480
Mobile applications / Mobile firmware & hardware
SD662
Mobile applications / Mobile firmware & hardware
SD678
Mobile applications / Mobile firmware & hardware
SD6905G
Mobile applications / Mobile firmware & hardware
SD720G
Mobile applications / Mobile firmware & hardware
SD750G
Mobile applications / Mobile firmware & hardware
SD765
Mobile applications / Mobile firmware & hardware
SD765G
Mobile applications / Mobile firmware & hardware
SD768G
Mobile applications / Mobile firmware & hardware
SD778G
Mobile applications / Mobile firmware & hardware
SD7c
Mobile applications / Mobile firmware & hardware
SD8655G
Mobile applications / Mobile firmware & hardware
SD870
Mobile applications / Mobile firmware & hardware
SD8885G
Mobile applications / Mobile firmware & hardware
SDX55M
Mobile applications / Mobile firmware & hardware
SDX65
Mobile applications / Mobile firmware & hardware
SDXR25G
Mobile applications / Mobile firmware & hardware
SM6225
Mobile applications / Mobile firmware & hardware
SM6250
Mobile applications / Mobile firmware & hardware
SM6250P
Mobile applications / Mobile firmware & hardware
SM6375
Mobile applications / Mobile firmware & hardware
SM7250P
Mobile applications / Mobile firmware & hardware
SM7315
Mobile applications / Mobile firmware & hardware
SM7325P
Mobile applications / Mobile firmware & hardware
WCD9340
Mobile applications / Mobile firmware & hardware
WCD9360
Mobile applications / Mobile firmware & hardware
WCD9370
Mobile applications / Mobile firmware & hardware
WCD9375
Mobile applications / Mobile firmware & hardware
WCD9380
Mobile applications / Mobile firmware & hardware
WCD9385
Mobile applications / Mobile firmware & hardware
WCN3910
Mobile applications / Mobile firmware & hardware
WCN3950
Mobile applications / Mobile firmware & hardware
WCN3980
Mobile applications / Mobile firmware & hardware
WCN3988
Mobile applications / Mobile firmware & hardware
WCN3990
Mobile applications / Mobile firmware & hardware
WCN3991
Mobile applications / Mobile firmware & hardware
WCN6750
Mobile applications / Mobile firmware & hardware
WCN6850
Mobile applications / Mobile firmware & hardware
WCN6851
Mobile applications / Mobile firmware & hardware
WCN6855
Mobile applications / Mobile firmware & hardware
WCN6856
Mobile applications / Mobile firmware & hardware
WSA8830
Mobile applications / Mobile firmware & hardware
WSA8835
Mobile applications / Mobile firmware & hardware
QCA6174A
Hardware solutions / Firmware
QCA6574AU
Hardware solutions / Firmware
QCA9377
Hardware solutions / Firmware
SA6155P
Hardware solutions / Firmware
SD675
Hardware solutions / Firmware
SD665
Hardware solutions / Firmware
SD730
Hardware solutions / Firmware
SD888
Hardware solutions / Firmware
SDX24
Hardware solutions / Firmware
SDX55
Hardware solutions / Firmware

Vendor: Qualcomm

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to improper validation of DNS response when DNS client requests with PTR, NAPTR or SRV query type within the Data Modem component. A remote attacker can send a specially crafted response to the device, trigger an assertion failure and perform a denial denial of service (DoS) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

AR8035: All versions

CSRB31024: All versions

QCA6174A: All versions

QCA6390: All versions

QCA6391: All versions

QCA6426: All versions

QCA6436: All versions

QCA6564AU: All versions

QCA6574A: All versions

QCA6574AU: All versions

QCA6595AU: All versions

QCA6696: All versions

QCA8081: All versions

QCA8337: All versions

QCA9377: All versions

QCM2290: All versions

QCM4290: All versions

QCM6490: All versions

QCS2290: All versions

QCS410: All versions

QCS4290: All versions

QCS610: All versions

QCS6490: All versions

QCX315: All versions

SA415M: All versions

SA515M: All versions

SA6145P: All versions

SA6150P: All versions

SA6155P: All versions

SA8145P: All versions

SA8150P: All versions

SA8155P: All versions

SA8195P: All versions

SD675: All versions

SD8Gen15G: All versions

SD8cxGen2: All versions

SD460: All versions

SD480: All versions

SD662: All versions

SD665: All versions

SD678: All versions

SD6905G: All versions

SD720G: All versions

SD730: All versions

SD750G: All versions

SD765: All versions

SD765G: All versions

SD768G: All versions

SD778G: All versions

SD7c: All versions

SD8655G: All versions

SD870: All versions

SD888: All versions

SD8885G: All versions

SDX24: All versions

SDX55: All versions

SDX55M: All versions

SDX65: All versions

SDXR25G: All versions

SM6225: All versions

SM6250: All versions

SM6250P: All versions

SM6375: All versions

SM7250P: All versions

SM7315: All versions

SM7325P: All versions

WCD9340: 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

WCN6750: All versions

WCN6850: All versions

WCN6851: All versions

WCN6855: All versions

WCN6856: All versions

WSA8830: All versions

WSA8835: All versions

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External links
http://www.qualcomm.com/company/product-security/bulletins/january-2022-bulletin

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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