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Amazon Linux AMI: CVE-2019-19816: Security patch for kernel (ALAS-2021-1477)

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Amazon Linux AMI: CVE-2019-19816: Security patch for kernel (ALAS-2021-1477)

Severity
9
CVSS
(AV:N/AC:M/Au:N/C:C/I:C/A:C)
Published
12/17/2019
Created
01/28/2021
Added
01/27/2021
Modified
10/14/2022

Description

In the Linux kernel 5.0.21, mounting a crafted btrfs filesystem image and performing some operations can cause slab-out-of-bounds write access in __btrfs_map_block in fs/btrfs/volumes.c, because a value of 1 for the number of data stripes is mishandled.

Solution(s)

  • amazon-linux-upgrade-kernel

References

  • ALAS-2021-1477
  • USN-4414-1
  • USN-4708-1
  • USN-4709-1
  • CVE-2019-19816

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