Use After Free Affecting kernel-azure package, versions <5.3.18-150300.38.80.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.23% (14th percentile)

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  • Snyk IDSNYK-SLES153-KERNELAZURE-3051956
  • published19 Oct 2022
  • disclosed18 Oct 2022

Introduced: 18 Oct 2022

CVE-2020-27784  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade SLES:15.3 kernel-azure to version 5.3.18-150300.38.80.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-azure package and not the kernel-azure package as distributed by SLES. See How to fix? for SLES:15.3 relevant fixed versions and status.

A vulnerability was found in the Linux kernel, where accessing a deallocated instance in printer_ioctl() printer_ioctl() tries to access of a printer_dev instance. However, use-after-free arises because it had been freed by gprinter_free().

CVSS Base Scores

version 3.1