VulnerabilityModified
CVE-2023-31248
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
HIGH 7.8EPSS 2.05%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.05%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 2.05% probability · 80th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-416
- Affected
- linux/linux kernel · fedoraproject/fedora · debian/debian linux · canonical/ubuntu linux
- Source
- security@ubuntu.com
References
- http://packetstormsecurity.com/files/173757/Kernel-Live-Patch-Security-Notice-LSN-0096-1.htmlThird Party Advisory, VDB Entry
- http://packetstormsecurity.com/files/174577/Kernel-Live-Patch-Security-Notice-LSN-0097-1.htmlThird Party Advisory, VDB Entry
- http://www.openwall.com/lists/oss-security/2023/07/05/2Mailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2023/08/msg00001.htmlThird Party Advisory, VDB Entry
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RGZC5XOANA75OJ4XARBBXYSLDKUIJI5E/Mailing List
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UPHI46ROSSLVAV4R5LJWJYU747JGOS6D/Mailing List
- https://lore.kernel.org/netfilter-devel/20230705121627.GC19489@breakpoint.cc/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-LSN-0096-1.htmlThird Party Advisory, VDB Entry
- http://packetstormsecurity.com/files/174577/Kernel-Live-Patch-Security-Notice-LSN-0097-1.htmlThird Party Advisory, VDB Entry
- http://www.openwall.com/lists/oss-security/2023/07/05/2Mailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2023/08/msg00001.htmlThird Party Advisory, VDB Entry
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RGZC5XOANA75OJ4XARBBXYSLDKUIJI5E/Mailing List
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UPHI46ROSSLVAV4R5LJWJYU747JGOS6D/Mailing List
- https://lore.kernel.org/netfilter-devel/20230705121627.GC19489@breakpoint.cc/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
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.