UBUNTU-CVE-2022-1462
An out-of-bounds read flaw was found in the Linux kernel’s TeleTYpe subsystem. The issue occurs in how a user triggers a race condition using ioctls TIOCSPTLCK and TIOCGPTPEER and TIOCSTI and TCXONC with leakage of memory in the flush_to_ldisc function. This flaw allows a local user to crash the system or read unauthorized random data from memory.
02 / AFFECTED SOFTWARE
Affected packages
5 explicit affected versions
9 explicit affected versions
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12 explicit affected versions
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18 explicit affected versions
57 explicit affected versions
3 explicit affected versions
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4 explicit affected versions
12 explicit affected versions
1 explicit affected versions
7 explicit affected versions
12 explicit affected versions
57 explicit affected versions
16 explicit affected versions
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10 explicit affected versions
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37 explicit affected versions
82 explicit affected versions
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1 explicit affected versions
2 explicit affected versions
26 explicit affected versions
13 explicit affected versions
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13 explicit affected versions
84 explicit affected versions
15 explicit affected versions
1 explicit affected versions
14 explicit affected versions
57 explicit affected versions
33 explicit affected versions
23 explicit affected versions
10 explicit affected versions
69 explicit affected versions
11 explicit affected versions
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7 explicit affected versions
55 explicit affected versions
2 explicit affected versions
5 explicit affected versions
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87 explicit affected versions
53 explicit affected versions
26 explicit affected versions
15 explicit affected versions
6 explicit affected versions
1 explicit affected versions
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34 explicit affected versions
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12 explicit affected versions
6 explicit affected versions
1 explicit affected versions
1 explicit affected versions
50 explicit affected versions
5 explicit affected versions
47 explicit affected versions
1 explicit affected versions
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13 explicit affected versions
12 explicit affected versions
46 explicit affected versions
7 explicit affected versions
10 explicit affected versions
12 explicit affected versions
41 explicit affected versions
44 explicit affected versions
16 explicit affected versions
13 explicit affected versions
1 explicit affected versions
37 explicit affected versions
38 explicit affected versions
5 explicit affected versions
9 explicit affected versions
5 explicit affected versions
126 explicit affected versions
13 explicit affected versions
45 explicit affected versions
61 explicit affected versions
22 explicit affected versions
100 explicit affected versions
77 explicit affected versions
4 explicit affected versions
33 explicit affected versions
10 explicit affected versions
68 explicit affected versions
45 explicit affected versions
43 explicit affected versions
12 explicit affected versions
105 explicit affected versions
119 explicit affected versions
45 explicit affected versions
4 explicit affected versions
34 explicit affected versions
1 explicit affected versions
23 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
An out-of-bounds read flaw was found in the Linux kernel’s TeleTYpe subsystem. The issue occurs in how a user triggers a race condition using ioctls TIOCSPTLCK and TIOCGPTPEER and TIOCSTI and TCXONC with leakage of memory in the flush_to_ldisc function. This flaw allows a local user to crash the system or read unauthorized random data from memory.
05 / REFERENCES
Further evidence
- https://lore.kernel.org/all/20220601183426.GD2168@kadam/
- https://ubuntu.com/security/CVE-2022-1462
- https://ubuntu.com/security/notices/USN-6001-1
- https://ubuntu.com/security/notices/USN-6013-1
- https://ubuntu.com/security/notices/USN-6014-1
- https://www.cve.org/CVERecord?id=CVE-2022-1462
- https://www.openwall.com/lists/oss-security/2022/05/27/2