CVE-2022-1462

medium

Description

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.

References

https://bugzilla.redhat.com/show_bug.cgi?id=2078466

https://lists.debian.org/debian-lts-announce/2022/10/msg00000.html

https://seclists.org/oss-sec/2022/q2/155

Details

Source: MITRE

Published: 2022-06-02

Updated: 2022-10-29

Type: CWE-362

Risk Information

CVSS v2

Base Score: 3.3

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

Impact Score: 4.9

Exploitability Score: 3.4

Severity: LOW

CVSS v3

Base Score: 6.3

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

Impact Score: 5.2

Exploitability Score: 1

Severity: MEDIUM