Use-after-free in Qualcomm products - CVE-2021-1905

Vulnerability identifier: #VU52818

CSH Severity: Medium

CVSS v4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2021-1905

CWE-ID: CWE-416

Exploitation vector: Local access

Exploit availability: The vulnerability is being exploited in the wild

The vulnerability allows a local user to escalate privileges on the system

The vulnerability exists due to a use-after-free error in Graphics component when handling memory mapping of multiple processes simultaneously. A local user can escalate privileges on the system.

Note, the vulnerability is being used in limited targeted attacks.

Qualcomm215
SA8195P
SA8155P
SA8155
SA8150P
SA6155
SA6150P
SA6145P
SA515M
SA2150P
RSW8577
RGR7640AU
SD455
QTM527
QTM525
QTC801S
QTC800T
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QTC410S
QSW8574
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QSM8250
SD632
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SD678
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QPA8673
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QLN5040
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SD768G
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QPM5677
QPM5670
QPM5658
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WCD9340
WCN3660B
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WCD9385
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WCN3680
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SMR546
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WCN6855
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QET6105
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QCA6174
QCA4020
QCA6431
QBT1500
QBT1000
QAT5568
QAT5533
QAT5522
QAT5516
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QAT3555
QAT3550
QAT3522
QAT3519
QCA9367
QCS603
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QCS410
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QCM6125
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QCC1110
QCA8337
QCA6696
QCA6595AU
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QCA6574A
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QCA6564
QCA6436
SA6155P
SD730
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SD888
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QCS605
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QCS405
QCA9379
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Google Android

Install updates from vendor's website.

Google Android - addressed in versions 8.1 2021-05-05, 9.0 2021-05-05, 10 2021-05-05, 11 2021-05-05

• https://www.qualcomm.com/company/product-security/bulletins/may-2021-bulletin
• https://source.codeaurora.org/quic/la/kernel/msm-4.9/commit/?id=d236d315145f8250523ce9e14897d62e5d66...
• https://source.android.com/security/bulletin/2021-05-01

• Multiple vulnerabilities in Qualcomm chipsets
• Multiple vulnerabilities in Google Android