What’s Vulnerable › Vulnerabilities

CVE-2022-1462

• Severity: medium (CVSS 6.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2022-06-02 · updated 2026-10-14
• Weakness: CWE-362

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.

Affected products

• Debian Linux: 10.0
• Linux kernel: all versions
• Red Hat Enterprise Linux: 8.0, 9.0

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://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

Get alerted when CVE-2022-1462 or the next vulnerability affects your stack