CVE-2023-4004
Kernel: netfilter: use-after-free due to improper element removal in nft_pipapo_remove()
Vexday Risk Score
21Low
SSVC decision (CISA)
Track
No exploitation signal → monitor
CVSS 7.8EPSS 1.0%KEV nãoPoC —Nuclei —Metasploit —Patch referenciado
Lifecycle
31 Jul 2023Published on NVD
Recommendation: Monitor — no exploitation signal at the moment.
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.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products
Red Hat · Red Hat Enterprise Linux 6Red Hat · Red Hat Enterprise Linux 7Red Hat · Red Hat Enterprise Linux 8Red Hat · Red Hat Enterprise Linux 8.2 Advanced Update SupportRed Hat · Red Hat Enterprise Linux 8.2 Telecommunications Update ServiceRed Hat · Red Hat Enterprise Linux 8.2 Update Services for SAP SolutionsRed Hat · Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update SupportRed Hat · Red Hat Enterprise Linux 8.4 Telecommunications Update ServiceRed Hat · Red Hat Enterprise Linux 8.4 Update Services for SAP SolutionsRed Hat · Red Hat Enterprise Linux 8.6 Extended Update SupportRed Hat · Red Hat Enterprise Linux 9Red Hat · Red Hat Enterprise Linux 9.0 Extended Update SupportRed Hat · Red Hat Virtualization 4 for Red Hat Enterprise Linux 8Want to know if your infrastructure is exposed to this?
Talk to TrueHacking →References
http://packetstormsecurity.com/files/175072/Kernel-Live-Patch-Security-Notice-LSN-0098-1.htmlhttp://packetstormsecurity.com/files/175963/Kernel-Live-Patch-Security-Notice-LSN-0099-1.htmlhttps://access.redhat.com/errata/RHSA-2023:4961https://access.redhat.com/errata/RHSA-2023:4962https://access.redhat.com/errata/RHSA-2023:4967https://access.redhat.com/errata/RHSA-2023:5069https://access.redhat.com/errata/RHSA-2023:5091https://access.redhat.com/errata/RHSA-2023:5093https://access.redhat.com/errata/RHSA-2023:5221https://access.redhat.com/errata/RHSA-2023:5244https://access.redhat.com/errata/RHSA-2023:5255https://access.redhat.com/errata/RHSA-2023:5548