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Amazon Linux AMI: CVE-2021-31916: Security patch for kernel (ALAS-2021-1503)

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Amazon Linux AMI: CVE-2021-31916: Security patch for kernel (ALAS-2021-1503)

Severity
6
CVSS
(AV:L/AC:L/Au:N/C:P/I:P/A:C)
Published
05/06/2021
Created
05/29/2021
Added
05/26/2021
Modified
10/14/2022

Description

An out-of-bounds (OOB) memory write flaw was found in list_devices in drivers/md/dm-ioctl.c in the Multi-device driver module in the Linux kernel before 5.12. A bound check failure allows an attacker with special user (CAP_SYS_ADMIN) privilege to gain access to out-of-bounds memory leading to a system crash or a leak of internal kernel information. The highest threat from this vulnerability is to system availability.

Solution(s)

  • amazon-linux-upgrade-kernel

References

  • ALAS-2021-1503
  • CVE-2021-31916
  • USN-4948-1
  • USN-4979-1
  • USN-4982-1
  • USN-4984-1
  • USN-5361-1
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