vulnerability

Red Hat: CVE-2021-27365: CVE-2021-27365 kernel: heap buffer overflow in the iSCSI subsystem (Multiple Advisories)

Name: Red Hat: CVE-2021-27365: CVE-2021-27365 kernel: heap buffer overflow in the iSCSI subsystem (Multiple Advisories)
Creator: Red Hat
Published: 2021-03-07T00:00:00.000Z
Keywords: CVE, CWE-787, Red Hat, 2021, 27365, 27365 kernel, redhat-upgrade-kernel, redhat-upgrade-kernel-rt, Severity 5

Try Surface Command

Back to search

Severity

CVSS

(AV:L/AC:L/Au:N/C:P/I:P/A:P)

Published

Mar 7, 2021

Added

Apr 7, 2021

Modified

Mar 27, 2026

Description

An issue was discovered in the Linux kernel through 5.11.3. Certain iSCSI data structures do not have appropriate length constraints or checks, and can exceed the PAGE_SIZE value. An unprivileged user can send a Netlink message that is associated with iSCSI, and has a length up to the maximum length of a Netlink message.

Solutions

redhat-upgrade-kernelredhat-upgrade-kernel-rt

References

Rapid7 Labs

2026 Global Threat Landscape Report

The predictive window has collapsed. Exploitation follows disclosure in days. See how attackers are accelerating and how to stay ahead.

Get report