Vulnerability 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
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 5.9, < 5.10.188 |
| Fedoraproject | Fedora | 37 |
| Debian | Debian Linux | 11.0 |
| Canonical | Ubuntu Linux | 14.04 |
Related Weaknesses (CWE)
References
- http://packetstormsecurity.com/files/173757/Kernel-Live-Patch-Security-Notice-LSThird Party AdvisoryVDB Entry
- http://packetstormsecurity.com/files/174577/Kernel-Live-Patch-Security-Notice-LSThird Party AdvisoryVDB Entry
- http://www.openwall.com/lists/oss-security/2023/07/05/2Mailing ListThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2023/08/msg00001.htmlThird Party AdvisoryVDB Entry
- https://lists.fedoraproject.org/archives/list/[email protected]Mailing List
- https://lists.fedoraproject.org/archives/list/[email protected]Mailing List
- https://lore.kernel.org/netfilter-devel/[email protected]/T/Patch
- https://security.netapp.com/advisory/ntap-20240201-0001/
- https://www.debian.org/security/2023/dsa-5453Third Party Advisory
- https://www.openwall.com/lists/oss-security/2023/07/05/2Mailing List
- http://packetstormsecurity.com/files/173757/Kernel-Live-Patch-Security-Notice-LSThird Party AdvisoryVDB Entry
- http://packetstormsecurity.com/files/174577/Kernel-Live-Patch-Security-Notice-LSThird Party AdvisoryVDB Entry
- http://www.openwall.com/lists/oss-security/2023/07/05/2Mailing ListThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2023/08/msg00001.htmlThird Party AdvisoryVDB Entry
- https://lists.fedoraproject.org/archives/list/[email protected]Mailing List
FAQ
What is CVE-2023-31248?
CVE-2023-31248 is a vulnerability with a CVSS score of 7.8 (HIGH). 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 namespac...
How severe is CVE-2023-31248?
CVE-2023-31248 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2023-31248?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel, Fedoraproject Fedora, Debian Debian Linux, Canonical Ubuntu Linux.