CVE-2022-1462

Public Exploit

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

Link	Tags
https://bugzilla.redhat.com/show_bug.cgi?id=2078466	issue tracking third party advisory
https://lists.debian.org/debian-lts-announce/2022/10/msg00000.html	third party advisory mailing list
https://seclists.org/oss-sec/2022/q2/155	mailing list exploit third party advisory

Frequently Asked Questions

What is the severity of CVE-2022-1462?: CVE-2022-1462 has been scored as a medium severity vulnerability.
How to fix CVE-2022-1462?: To fix CVE-2022-1462, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2022-1462 being actively exploited in the wild?: It is possible that CVE-2022-1462 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2022-1462?: CVE-2022-1462 affects n/a kernel.

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Description

Category

CWE-362 – Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

References

Frequently Asked Questions