Use After Free Affecting kernel-devel package, versions <4.12.14-197.40.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.31% (71st percentile)

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  • Snyk IDSNYK-SLES151-KERNELDEVEL-2713247
  • published14 Apr 2022
  • disclosed29 Apr 2020

Introduced: 29 Apr 2020

CVE-2019-19770  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade SLES:15.1 kernel-devel to version 4.12.14-197.40.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-devel package and not the kernel-devel package as distributed by SLES. See How to fix? for SLES:15.1 relevant fixed versions and status.

In the Linux kernel 4.19.83, there is a use-after-free (read) in the debugfs_remove function in fs/debugfs/inode.c (which is used to remove a file or directory in debugfs that was previously created with a call to another debugfs function such as debugfs_create_file). NOTE: Linux kernel developers dispute this issue as not being an issue with debugfs, instead this is an issue with misuse of debugfs within blktrace

CVSS Scores

version 3.1