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.

Score

CVSS 3.1 6.3 Medium

Status

Modified - secalert@redhat.com

Published

2022-06-02

Last modified

2026-10-14

Weaknesses

CWE-362

Affected products

• Debian Linux (Debian)
• Linux Kernel (Linux)
• Enterprise Linux (Redhat)
• Simatic S7-1500 Tm Mfp - Gnulinux Subsystem (Siemens)

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
• https://cert-portal.siemens.com/productcert/html/ssa-794697.html