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Red Hat: CVE-2023-31248: use-after-free in nft_chain_lookup_byid() (Multiple Advisories)

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Red Hat: CVE-2023-31248: use-after-free in nft_chain_lookup_byid() (Multiple Advisories)

Severity
7
CVSS
(AV:L/AC:L/Au:S/C:C/I:C/A:C)
Published
07/05/2023
Created
09/13/2023
Added
09/13/2023
Modified
01/28/2025

Description

Linux Kernel nftables Use-After-Free Local Privilege Escalation Vulnerability; `nft_chain_lookup_byid()` failed to check whether a chain was active and CAP_NET_ADMIN is in any user or network namespace

Solution(s)

  • redhat-upgrade-kernel
  • redhat-upgrade-kernel-rt

References

  • CVE-2023-31248
  • RHSA-2023:5069
  • RHSA-2023:5091
  • RHSA-2023:5093
  • RHSA-2023:5575
  • RHSA-2023:5603
  • RHSA-2023:5604
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