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Amazon Linux AMI: CVE-2019-19770: Security patch for kernel ((Multiple Advisories))

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Amazon Linux AMI: CVE-2019-19770: Security patch for kernel ((Multiple Advisories))

Severity
6
CVSS
(AV:N/AC:L/Au:N/C:P/I:N/A:P)
Published
12/12/2019
Created
12/22/2020
Added
12/19/2020
Modified
10/14/2022

Description

** DISPUTED ** 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.

Solution(s)

  • amazon-linux-upgrade-kernel

References

  • ALAS-2021-1461
  • CVE-2019-19770
  • USN-4680-1

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