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CVE-2022-32250

Good to know:

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Date: June 2, 2022

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.

Language: C

Severity Score

Related Resources (25)

https://nvd.nist.gov/vuln/detail/CVE-2022-32250
http://www.openwall.com/lists/oss-security/2022/06/03/1
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MO6Y3TC4WUUNKRP7OQA26OVTZTPCS6F2/
https://access.redhat.com/security/cve/CVE-2022-32250
http://www.openwall.com/lists/oss-security/2022/06/04/1
https://bugzilla.redhat.com/show_bug.cgi?id=2092427
http://www.openwall.com/lists/oss-security/2022/06/20/1
https://www.openwall.com/lists/oss-security/2022/05/31/1
https://blog.theori.io/research/CVE-2022-32250-linux-kernel-lpe-2022/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UIZTJOJCVVEJVOQSCHE6IJQKMPISHQ5L/
https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/net/netfilter?id=520778042ccca019f3ffa136dd0ca565c486cedd
http://www.openwall.com/lists/oss-security/2022/09/02/9
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MO6Y3TC4WUUNKRP7OQA26OVTZTPCS6F2/
http://www.openwall.com/lists/oss-security/2022/08/25/1
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UIZTJOJCVVEJVOQSCHE6IJQKMPISHQ5L/
http://www.openwall.com/lists/oss-security/2022/07/03/6
https://lists.debian.org/debian-lts-announce/2022/07/msg00000.html
http://www.openwall.com/lists/oss-security/2022/07/03/5
https://people.canonical.com/~ubuntu-security/cve/CVE-2022-32250
https://github.com/theori-io/CVE-2022-32250-exploit
https://security-tracker.debian.org/tracker/CVE-2022-32250
https://security.netapp.com/advisory/ntap-20220715-0005/
https://www.debian.org/security/2022/dsa-5173
https://www.debian.org/security/2022/dsa-5161
https://www.mend.io/vulnerability-database/CVE-2022-32250

Severity Score

Weakness Type (CWE)

Use After Free

CWE-416

Top Fix

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Upgrade Version

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CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): LOW
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): LOCAL
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): COMPLETE
Integrity (I): COMPLETE
Availability (A): COMPLETE
Additional information:

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