#VU55507 Use-after-free in Qualcomm products - CVE-2021-1947
Vulnerability identifier: #VU55507
Vulnerability risk: Low
CVSSv4.0: 4.4 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID:
CWE-ID:
CWE-416
Exploitation vector: Local
Exploit availability: No
Vulnerable software:
APQ8009W
Mobile applications /
Mobile firmware & hardware
AR9380
Mobile applications /
Mobile firmware & hardware
IPQ8065
Mobile applications /
Mobile firmware & hardware
IPQ8068
Mobile applications /
Mobile firmware & hardware
IPQ8069
Mobile applications /
Mobile firmware & hardware
QCA6320
Mobile applications /
Mobile firmware & hardware
QCA6390
Mobile applications /
Mobile firmware & hardware
QCA6391
Mobile applications /
Mobile firmware & hardware
QCA6426
Mobile applications /
Mobile firmware & hardware
QCA8337
Mobile applications /
Mobile firmware & hardware
QCA9561
Mobile applications /
Mobile firmware & hardware
QCA9563
Mobile applications /
Mobile firmware & hardware
QCA9880
Mobile applications /
Mobile firmware & hardware
QCA9882
Mobile applications /
Mobile firmware & hardware
QCA9886
Mobile applications /
Mobile firmware & hardware
QCA9887
Mobile applications /
Mobile firmware & hardware
QCA9888
Mobile applications /
Mobile firmware & hardware
QCA9889
Mobile applications /
Mobile firmware & hardware
QCA9896
Mobile applications /
Mobile firmware & hardware
QCA9898
Mobile applications /
Mobile firmware & hardware
QCA9982
Mobile applications /
Mobile firmware & hardware
QCA9984
Mobile applications /
Mobile firmware & hardware
QCA9990
Mobile applications /
Mobile firmware & hardware
QCA9992
Mobile applications /
Mobile firmware & hardware
QCA9994
Mobile applications /
Mobile firmware & hardware
QCM2290
Mobile applications /
Mobile firmware & hardware
QCM4290
Mobile applications /
Mobile firmware & hardware
QCM6125
Mobile applications /
Mobile firmware & hardware
QCS2290
Mobile applications /
Mobile firmware & hardware
QCS4290
Mobile applications /
Mobile firmware & hardware
QCS6125
Mobile applications /
Mobile firmware & hardware
QET4101
Mobile applications /
Mobile firmware & hardware
QRB5165
Mobile applications /
Mobile firmware & hardware
QSW8573
Mobile applications /
Mobile firmware & hardware
SD429
Mobile applications /
Mobile firmware & hardware
SD460
Mobile applications /
Mobile firmware & hardware
SD660
Mobile applications /
Mobile firmware & hardware
SD662
Mobile applications /
Mobile firmware & hardware
SD6905G
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
SD8655G
Mobile applications /
Mobile firmware & hardware
SD870
Mobile applications /
Mobile firmware & hardware
SDA429W
Mobile applications /
Mobile firmware & hardware
SDM830
Mobile applications /
Mobile firmware & hardware
SDX55M
Mobile applications /
Mobile firmware & hardware
SM4125
Mobile applications /
Mobile firmware & hardware
SM7250
Mobile applications /
Mobile firmware & hardware
WCD9326
Mobile applications /
Mobile firmware & hardware
WCD9335
Mobile applications /
Mobile firmware & hardware
WCD9340
Mobile applications /
Mobile firmware & hardware
WCD9341
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
WCN3610
Mobile applications /
Mobile firmware & hardware
WCN3615
Mobile applications /
Mobile firmware & hardware
WCN3620
Mobile applications /
Mobile firmware & hardware
WCN3660B
Mobile applications /
Mobile firmware & hardware
WCN3680B
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
WCN3998
Mobile applications /
Mobile firmware & hardware
WCN6850
Mobile applications /
Mobile firmware & hardware
WCN6851
Mobile applications /
Mobile firmware & hardware
WSA8810
Mobile applications /
Mobile firmware & hardware
WSA8815
Mobile applications /
Mobile firmware & hardware
WSA8830
Mobile applications /
Mobile firmware & hardware
WSA8835
Mobile applications /
Mobile firmware & hardware
APQ8053
Hardware solutions /
Firmware
IPQ8064
Hardware solutions /
Firmware
MSM8909W
Hardware solutions /
Firmware
MSM8953
Hardware solutions /
Firmware
QCA9531
Hardware solutions /
Firmware
QCA9558
Hardware solutions /
Firmware
QCA9980
Hardware solutions /
Firmware
SD665
Hardware solutions /
Firmware
SD855
Hardware solutions /
Firmware
SDM429W
Hardware solutions /
Firmware
SDX55
Hardware solutions /
Firmware
Vendor: Qualcomm
Description
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error in kernel graphics driver. A local user can run a specially crafted program to trigger a use-after-free error and execute arbitrary code elevated privileges.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
APQ8009W: All versions
APQ8053: All versions
AR9380: All versions
IPQ8064: All versions
IPQ8065: All versions
IPQ8068: All versions
IPQ8069: All versions
MSM8909W: All versions
MSM8953: All versions
QCA6320: All versions
QCA6390: All versions
QCA6391: All versions
QCA6426: All versions
QCA8337: All versions
QCA9531: All versions
QCA9558: All versions
QCA9561: All versions
QCA9563: All versions
QCA9880: All versions
QCA9882: All versions
QCA9886: All versions
QCA9887: All versions
QCA9888: All versions
QCA9889: All versions
QCA9896: All versions
QCA9898: All versions
QCA9980: All versions
QCA9982: All versions
QCA9984: All versions
QCA9990: All versions
QCA9992: All versions
QCA9994: All versions
QCM2290: All versions
QCM4290: All versions
QCM6125: All versions
QCS2290: All versions
QCS4290: All versions
QCS6125: All versions
QET4101: All versions
QRB5165: All versions
QSW8573: All versions
SD429: All versions
SD460: All versions
SD660: All versions
SD662: All versions
SD665: All versions
SD6905G: All versions
SD750G: All versions
SD765: All versions
SD765G: All versions
SD768G: All versions
SD855: All versions
SD8655G: All versions
SD870: All versions
SDA429W: All versions
SDM429W: All versions
SDM830: All versions
SDX55: All versions
SDX55M: All versions
SM4125: All versions
SM7250: All versions
WCD9326: All versions
WCD9335: All versions
WCD9340: All versions
WCD9341: All versions
WCD9370: All versions
WCD9375: All versions
WCD9380: All versions
WCD9385: All versions
WCN3610: All versions
WCN3615: All versions
WCN3620: All versions
WCN3660B: All versions
WCN3680B: All versions
WCN3910: All versions
WCN3950: All versions
WCN3980: All versions
WCN3988: All versions
WCN3990: All versions
WCN3991: All versions
WCN3998: All versions
WCN6850: All versions
WCN6851: All versions
WSA8810: All versions
WSA8815: All versions
WSA8830: All versions
WSA8835: All versions
External links
https://www.qualcomm.com/company/product-security/bulletins/august-2021-bulletin
https://source.codeaurora.org/quic/le/kernel/msm-4.19/commit/?id=cb82ed90520b6801e6b0ec6bac6821cd347e3de7
https://source.codeaurora.org/quic/le/kernel/msm-4.19/commit/?id=70c13b73f1ea7a30a730ced48a59d366898677bc
https://source.codeaurora.org/quic/le/kernel/msm-4.19/commit/?id=a637a43b7995cf905f1d0d059b418ee57e60aa67
https://source.codeaurora.org/quic/le/kernel/msm-4.19/commit/?id=851a03f61d90566e37408240b2f71ed34f8cc73a
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.
