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cve[email protected]CVE-2022-1462
HistoryJun 02, 2022 - 2:15 p.m.

CVE-2022-1462

2022-06-0214:15:00
CWE-362
web.nvd.nist.gov
199
7
linux kernel
teletype subsystem
cve-2022-1462
security flaw
out-of-bounds read
race condition
leakage of memory
ioctls
tiocsptlck
tiocgptpeer
tiocsti
tcxonc
nvd

6.3 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:H

6.3 Medium

AI Score

Confidence

High

3.3 Low

CVSS2

Access Vector

LOCAL

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:L/AC:M/Au:N/C:P/I:N/A:P

0.0004 Low

EPSS

Percentile

5.3%

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.

Social References

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6.3 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:H

6.3 Medium

AI Score

Confidence

High

3.3 Low

CVSS2

Access Vector

LOCAL

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:L/AC:M/Au:N/C:P/I:N/A:P

0.0004 Low

EPSS

Percentile

5.3%