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Amazon Linux AMI: CVE-2023-3390: Security patch for kernel (ALAS-2023-1827)

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Amazon Linux AMI: CVE-2023-3390: Security patch for kernel (ALAS-2023-1827)

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
06/28/2023
Created
09/28/2023
Added
09/26/2023
Modified
09/26/2023

Description

A use-after-free vulnerability was found in the Linux kernel's netfilter subsystem in net/netfilter/nf_tables_api.c.

Mishandled error handling with NFT_MSG_NEWRULE makes it possible to use a dangling pointer in the same transaction causing a use-after-free vulnerability. This flaw allows a local attacker with user access to cause a privilege escalation issue.

We recommend upgrading past commit 1240eb93f0616b21c675416516ff3d74798fdc97.

Solution(s)

  • amazon-linux-upgrade-kernel

References

  • ALAS-2023-1827
  • CVE-2023-3390

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