UBUNTU-CVE-2021-39685
In various setup methods of the USB gadget subsystem, there is a possible out of bounds write due to an incorrect flag check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-210292376References: Upstream kernel
02 / AFFECTED SOFTWARE
Affected packages
50 explicit affected versions
6 explicit affected versions
12 explicit affected versions
6 explicit affected versions
13 explicit affected versions
191 explicit affected versions
76 explicit affected versions
39 explicit affected versions
56 explicit affected versions
29 explicit affected versions
9 explicit affected versions
88 explicit affected versions
5 explicit affected versions
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23 explicit affected versions
75 explicit affected versions
1 explicit affected versions
1 explicit affected versions
21 explicit affected versions
8 explicit affected versions
1 explicit affected versions
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12 explicit affected versions
12 explicit affected versions
1 explicit affected versions
7 explicit affected versions
12 explicit affected versions
43 explicit affected versions
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51 explicit affected versions
12 explicit affected versions
42 explicit affected versions
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10 explicit affected versions
141 explicit affected versions
26 explicit affected versions
74 explicit affected versions
54 explicit affected versions
1 explicit affected versions
26 explicit affected versions
5 explicit affected versions
1 explicit affected versions
29 explicit affected versions
13 explicit affected versions
70 explicit affected versions
1 explicit affected versions
44 explicit affected versions
33 explicit affected versions
10 explicit affected versions
55 explicit affected versions
11 explicit affected versions
12 explicit affected versions
78 explicit affected versions
7 explicit affected versions
42 explicit affected versions
2 explicit affected versions
74 explicit affected versions
39 explicit affected versions
1 explicit affected versions
10 explicit affected versions
21 explicit affected versions
32 explicit affected versions
5 explicit affected versions
1 explicit affected versions
1 explicit affected versions
36 explicit affected versions
5 explicit affected versions
33 explicit affected versions
1 explicit affected versions
32 explicit affected versions
13 explicit affected versions
1 explicit affected versions
32 explicit affected versions
10 explicit affected versions
5 explicit affected versions
29 explicit affected versions
44 explicit affected versions
16 explicit affected versions
13 explicit affected versions
26 explicit affected versions
38 explicit affected versions
9 explicit affected versions
118 explicit affected versions
32 explicit affected versions
53 explicit affected versions
12 explicit affected versions
86 explicit affected versions
63 explicit affected versions
4 explicit affected versions
20 explicit affected versions
54 explicit affected versions
32 explicit affected versions
43 explicit affected versions
1 explicit affected versions
96 explicit affected versions
103 explicit affected versions
33 explicit affected versions
4 explicit affected versions
21 explicit affected versions
1 explicit affected versions
10 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
In various setup methods of the USB gadget subsystem, there is a possible out of bounds write due to an incorrect flag check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-210292376References: Upstream kernel
05 / REFERENCES
Further evidence
- https://github.com/szymonh/inspector-gadget
- https://ubuntu.com/security/CVE-2021-39685
- https://ubuntu.com/security/notices/USN-5278-1
- https://ubuntu.com/security/notices/USN-5294-1
- https://ubuntu.com/security/notices/USN-5294-2
- https://ubuntu.com/security/notices/USN-5297-1
- https://ubuntu.com/security/notices/USN-5298-1
- https://ubuntu.com/security/notices/USN-5337-1
- https://ubuntu.com/security/notices/USN-5368-1
- https://ubuntu.com/security/notices/USN-5505-1
- https://ubuntu.com/security/notices/USN-5513-1
- https://www.cve.org/CVERecord?id=CVE-2021-39685
- https://www.openwall.com/lists/oss-security/2021/12/15/4