VulnerabilityModified
CVE-2023-4147
A use-after-free flaw was found in the Linux kernel’s Netfilter functionality when adding a rule with NFTA_RULE_CHAIN_ID.
HIGH 7.8EPSS 0.56%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.56%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
A use-after-free flaw was found in the Linux kernel’s Netfilter functionality when adding a rule with NFTA_RULE_CHAIN_ID. This flaw allows a local user to crash or escalate their privileges on the system.
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.56% probability · 45th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-416
- Affected
- linux/linux kernel · fedoraproject/fedora · redhat/enterprise linux · redhat/enterprise linux eus · redhat/enterprise linux for real time · redhat/enterprise linux for real time for nfv · redhat/enterprise linux server aus · debian/debian linux
- Source
- secalert@redhat.com
References
- https://access.redhat.com/errata/RHSA-2023:5069Third Party Advisory
- https://access.redhat.com/errata/RHSA-2023:5091Third Party Advisory
- https://access.redhat.com/errata/RHSA-2023:5093Third Party Advisory
- https://access.redhat.com/errata/RHSA-2023:7382Third Party Advisory
- https://access.redhat.com/errata/RHSA-2023:7389Third Party Advisory
- https://access.redhat.com/errata/RHSA-2023:7411Third Party Advisory
- https://access.redhat.com/security/cve/CVE-2023-4147Patch, Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2225239Issue Tracking, Patch, Third Party Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=0ebc1064e4874d5987722a2ddbc18f94aa53b211Mailing List, Patch
- https://www.spinics.net/lists/stable/msg671573.htmlMailing List, Patch
- https://access.redhat.com/errata/RHSA-2023:5069Third Party Advisory
- https://access.redhat.com/errata/RHSA-2023:5091Third Party Advisory
- https://access.redhat.com/errata/RHSA-2023:5093Third Party Advisory
- https://access.redhat.com/errata/RHSA-2023:7382Third Party Advisory
- https://access.redhat.com/errata/RHSA-2023:7389Third Party Advisory
- https://access.redhat.com/errata/RHSA-2023:7411Third Party Advisory
- https://access.redhat.com/security/cve/CVE-2023-4147Patch, Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2225239Issue Tracking, Patch, Third Party Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=0ebc1064e4874d5987722a2ddbc18f94aa53b211Mailing List, Patch
- https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html
- https://security.netapp.com/advisory/ntap-20231020-0006/
- https://www.debian.org/security/2023/dsa-5480
- https://www.debian.org/security/2023/dsa-5492
- https://www.spinics.net/lists/stable/msg671573.htmlMailing List, Patch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.