Buffer Over-read in Qualcomm products - CVE-2021-1928

Vulnerability identifier: #VU55511

CSH Severity: Low

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

CVE-ID: CVE-2021-1928

CWE-ID: CWE-126

Exploitation vector: Local access

Exploit availability: No public exploit available

Vulnerable software:
APQ8009
APQ8053
IPQ4019
IPQ8064
IPQ8074
MDM9206
QCA9377
QCA9531
QCA9558
QCA9980
SD205
SD210
AR9380
CSR8811
IPQ4018
IPQ4028
IPQ4029
IPQ5010
IPQ5018
IPQ6000
IPQ6005
IPQ6010
IPQ6018
IPQ6028
IPQ8065
IPQ8068
IPQ8069
IPQ8070
IPQ8070A
IPQ8071
IPQ8071A
IPQ8072
IPQ8072A
IPQ8074A
IPQ8076
IPQ8076A
IPQ8078
IPQ8078A
IPQ8173
IPQ8174
PMP8074
QCA4024
QCA6310
QCA6320
QCA6335
QCA6428
QCA6438
QCA6694
QCA7500
QCA8072
QCA8075
QCA8081
QCA9367
QCA9561
QCA9563
QCA9880
QCA9882
QCA9886
QCA9887
QCA9888
QCA9889
QCA9896
QCA9898
QCA9982
QCA9984
QCA9985
QCA9990
QCA9992
QCA9994
QCN5021
QCN5022
QCN5024
QCN5052
QCN5054
QCN5064
QCN5121
QCN5122
QCN5124
QCN5152
QCN5154
QCN5164
QCN5500
QCN5502
QCN5550
QCN6023
QCN6024
QCN9000
QCN9012
QCN9022
QCN9024
QCN9070
QCN9072
QCN9074
QCN9100
QFE1922
QFE1952
Qualcomm215
SDA429W
WCD9326
WCD9330
WCD9340
WCN3610
WCN3620
WCN3660B
WCN3680B
WCN3980
WSA8810
WSA8815

Software vendor:
Qualcomm

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

The vulnerability exists due to incorrect check of buffer size while flashing emmc devices. An attacker with physical access to device can perform a denial of service (DoS) attack.

Install updates from vendor's website.

• https://www.qualcomm.com/company/product-security/bulletins/august-2021-bulletin
• https://source.codeaurora.org/quic/le/kernel/lk/commit/?id=183e867d1b648772b6e8cddcd140968f1f8d5ecd