CVE-2023-4004
HIGH severity · CVSS 7.8 · Use-after-free
7.8CVSS HIGH
Summary
A use-after-free flaw was found in the Linux kernel's netfilter in the way a user triggers the nft_pipapo_remove function with the element, without a NFT_SET_EXT_KEY_END. This issue could allow a local user to crash the system or potentially escalate their privileges on the system.
Impact & exploitability
Attack vectorLocal
Attack complexityLow
Privileges requiredLow
User interactionNone
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
Exploit probability (EPSS)1%
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products we track (4)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Additional information
- NVD record
- https://access.redhat.com/errata/RHSA-2023:4961Advisory
- https://access.redhat.com/errata/RHSA-2023:4962Advisory
- https://access.redhat.com/errata/RHSA-2023:4967Advisory
- https://access.redhat.com/errata/RHSA-2023:5069Advisory
- https://access.redhat.com/errata/RHSA-2023:5091Advisory
- https://access.redhat.com/errata/RHSA-2023:5093Advisory
- https://access.redhat.com/errata/RHSA-2023:5221Advisory
- https://access.redhat.com/errata/RHSA-2023:5244Advisory