CVE-2022-1462 — MEDIUM (6.3)

Vulnerability 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.

CVSS Score

6.3

MEDIUM

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

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Linux	Linux Kernel	-
Redhat	Enterprise Linux	8.0
Debian	Debian Linux	10.0

Related Weaknesses (CWE)

CWE-362

References

https://bugzilla.redhat.com/show_bug.cgi?id=2078466Issue TrackingThird Party Advisory
https://lists.debian.org/debian-lts-announce/2022/10/msg00000.htmlMailing ListThird Party Advisory
https://seclists.org/oss-sec/2022/q2/155ExploitMailing ListThird Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2078466Issue TrackingThird Party Advisory
https://lists.debian.org/debian-lts-announce/2022/10/msg00000.htmlMailing ListThird Party Advisory
https://seclists.org/oss-sec/2022/q2/155ExploitMailing ListThird Party Advisory

FAQ

What is CVE-2022-1462?

CVE-2022-1462 is a vulnerability with a CVSS score of 6.3 (MEDIUM). 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 w...

How severe is CVE-2022-1462?

CVE-2022-1462 has been rated MEDIUM with a CVSS base score of 6.3/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2022-1462?

Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel, Redhat Enterprise Linux, Debian Debian Linux.