#VU57905 Out-of-bounds read in Qualcomm products - CVE-2021-1981

Vulnerability identifier: #VU57905

Vulnerability risk: Medium

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

CVE-ID: CVE-2021-1981

CWE-ID: CWE-125

Exploitation vector: Remote access

Exploit availability: No public exploit available

Vulnerable software:
APQ8017
MSM8917
QCA6574AU
SD205
SD210
SD665
SD670
SD675
SD730
SD845
SD855
SDX55
AR8035
QCA6390
QCA6391
QCA6421
QCA6426
QCA6431
QCA6436
QCA6574A
QCA6595AU
QCA6696
QCA8081
QCA8337
QCM6125
QCM6490
QCS410
QCS610
QCS6125
QCS6490
QCX315
QSM8350
Qualcomm215
SA515M
SD 675
SD429
SD439
SD480
SD678
SD690 5G
SD720G
SD750G
SD765
SD765G
SD768G
SD778G
SD865 5G
SD870
SD888 5G
SDX55M
SDX65
SDXR2 5G
SM6250
SM6250P
SM6375
SM7250
SM7325
SM8450
SM8450P
WCD9326
WCD9340
WCD9341
WCD9360
WCD9370
WCD9371
WCD9375
WCD9380
WCD9385
WCN3610
WCN3615
WCN3660B
WCN3680B
WCN3910
WCN3950
WCN3980
WCN3988
WCN3990
WCN3991
WCN3998
WCN6750
WCN6850
WCN6851
WCN6855
WCN6856
WCN7850
WCN7851
WSA8810
WSA8815
WSA8830
WSA8835

Software vendor:
Qualcomm

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

The vulnerability exists due to improper IE size check of Bearer capability IE in MT setup request from network. A remote attacker can trigger out-of-bounds read error and cause a denial of service condition on the system.

Install updates from vendor's website.

• https://www.qualcomm.com/company/product-security/bulletins/november-2021-bulletin