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CVE-2022-32250
net/netfilter/nf_tables_api.c in the Linux kernel through 5.18.1 allows a local user (able to create user/net namespaces) to escalate…
High7.8EPSS 2.9%
- Published
- Updated
- Reserved
- Assigned by
- mitre
Description
net/netfilter/nf_tables_api.c in the Linux kernel through 5.18.1 allows a local user (able to create user/net namespaces) to escalate privileges to root because an incorrect NFT_STATEFUL_EXPR check leads to a use-after-free.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 2.9% · top 13% of all CVEs (6 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.
Weakness
Affected products
n/a
- affected n/a
References (19)
- https://www.openwall.com/lists/oss-security/2022/05/31/1 (opens in a new tab)x_refsource_MISCx_transferred
- https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/net/netfilter?id=520778042ccca019f3ffa136dd0ca565c486cedd (opens in a new tab)x_refsource_MISCx_transferred
- [oss-security] 20220603 Re: Linux Kernel use-after-free write in netfilter (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [oss-security] 20220604 Re: Linux Kernel use-after-free write in netfilter (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MO6Y3TC4WUUNKRP7OQA26OVTZTPCS6F2/ (opens in a new tab)x_refsource_MISCx_transferred
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UIZTJOJCVVEJVOQSCHE6IJQKMPISHQ5L/ (opens in a new tab)x_refsource_MISCx_transferred
- https://www.debian.org/security/2022/dsa-5161 (opens in a new tab)x_refsource_MISCx_transferred
- https://bugzilla.redhat.com/show_bug.cgi?id=2092427 (opens in a new tab)x_refsource_MISCx_transferred
- [oss-security] 20220620 Re: Linux Kernel use-after-free write in netfilter (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [debian-lts-announce] 20220701 [SECURITY] [DLA 3065-1] linux security update (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [oss-security] 20220703 Re: Linux kernel: Netfilter heap buffer overflow: Is this CVE-2022-32250? (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [oss-security] 20220703 Linux kernel: Netfilter heap buffer overflow: Is this CVE-2022-32250? (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- DSA-5173 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- https://security.netapp.com/advisory/ntap-20220715-0005/ (opens in a new tab)x_refsource_CONFIRMx_transferred
- [oss-security] 20220825 Re: Linux Kernel use-after-free write in netfilter (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- https://blog.theori.io/research/CVE-2022-32250-linux-kernel-lpe-2022/ (opens in a new tab)x_refsource_MISCx_transferred
- https://github.com/theori-io/CVE-2022-32250-exploit (opens in a new tab)x_refsource_MISCx_transferred
- [oss-security] 20220902 Re: Linux Kernel use-after-free write in netfilter (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- https://cert-portal.siemens.com/productcert/html/ssa-794697.html (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
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[](https://trackcve.app/cve/CVE-2022-32250)Record last updated .