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Amazon Linux AMI: CVE-2023-1829: Security patch for kernel (ALAS-2023-1701)

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Amazon Linux AMI: CVE-2023-1829: Security patch for kernel (ALAS-2023-1701)

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
03/17/2023
Created
05/05/2023
Added
05/02/2023
Modified
05/02/2023

Description

A use-after-free vulnerability in the Linux Kernel traffic control index filter (tcindex) can be exploited to achieve local privilege escalation. The tcindex_delete function which does not properly deactivate filters in case of a perfect hashes while deleting the underlying structure which can later lead to double freeing the structure. A local attacker user can use this vulnerability to elevate its privileges to root.

We recommend upgrading past commit 8c710f75256bb3cf05ac7b1672c82b92c43f3d28.

Solution(s)

  • amazon-linux-upgrade-kernel

References

  • ALAS-2023-1701
  • CVE-2023-1829

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