Use After Free in Linux Kernel
CVE-2023-4004
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.
Vulnerability class: Use-After-Free
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.009 (58.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 59th percentile — 58.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: -0.000
Affected products
- Linux Kernel
- NetApp H300s
- NetApp H410s
- NetApp H500s
- NetApp H700s
- Debian Linux — versions 10.0, 11.0, 12.0
- Fedoraproject Fedora — versions 38
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8 — versions 0:4.18.0-477.27.1.rt7.290.el8_8, 0:4.18.0-477.27.1.el8_8
Weakness classification (CWE)
References
- access.redhat.com/errata/RHSA-2023:4961 (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2023:4962 (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2023:4967 (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2023:5069 (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2023:5091 (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2023:5093 (vendor-advisory, Third Party Advisory, Broken Link)
- access.redhat.com/errata/RHSA-2023:5221 (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2023:5244 (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2023:5255 (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2023:5548 (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2023-4004?
- CVE-2023-4004 is a high-severity vulnerability in Linux Kernel, classified under Use After Free. CVSS score: 7.8/10. Published 2023-07-31.
- How severe is CVE-2023-4004?
- High severity. CVSS v3 base score is 7.8 out of 10.