Use After Free Affecting kernel-rt-debug package, versions <0:3.10.0-957.27.2.rt56.940.el7


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.05% (16th percentile)

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  • Snyk IDSNYK-RHEL7-KERNELRTDEBUG-4878831
  • published26 Jul 2021
  • disclosed7 May 2019

Introduced: 7 May 2019

CVE-2019-11811  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade RHEL:7 kernel-rt-debug to version 0:3.10.0-957.27.2.rt56.940.el7 or higher.
This issue was patched in RHSA-2019:1891.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-rt-debug package and not the kernel-rt-debug package as distributed by RHEL. See How to fix? for RHEL:7 relevant fixed versions and status.

An issue was discovered in the Linux kernel before 5.0.4. There is a use-after-free upon attempted read access to /proc/ioports after the ipmi_si module is removed, related to drivers/char/ipmi/ipmi_si_intf.c, drivers/char/ipmi/ipmi_si_mem_io.c, and drivers/char/ipmi/ipmi_si_port_io.c.

CVSS Base Scores

version 3.1