CVE-2022-34918

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Summary

CVECVE-2022-34918
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2022-07-04 21:15:07 UTC
Updated2026-10-14 17:17:40 UTC
DescriptionAn issue was discovered in the Linux kernel through 5.18.9. A type confusion bug in nft_set_elem_init (leading to a buffer overflow) could be used by a local attacker to escalate privileges, a different vulnerability than CVE-2022-32250. (The attacker can obtain root access, but must start with an unprivileged user namespace to obtain CAP_NET_ADMIN access.) This can be fixed in nft_setelem_parse_data in net/netfilter/nf_tables_api.c.

Risk And Classification

Primary CVSS: v3.1 7.8 HIGH from [email protected]

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Problem Types: CWE-843 | n/a

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary7.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
2.0[email protected]Primary7.2AV:L/AC:L/Au:N/C:C/I:C/A:C

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS v2.0 Breakdown

Access Vector
Local
Access Complexity
Low
Authentication
None
Confidentiality
Complete
Integrity
Complete
Availability
Complete

AV:L/AC:L/Au:N/C:C/I:C/A:C

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified
ADP Siemens SIMATIC S7-1500 TM MFP - GNU/Linux Subsystem affected V1.1 custom Not specified

References

ReferenceSourceLinkTags
Kernel Live Patch Security Notice LSN-0089-1 ≈ Packet Storm af854a3a-2127-422b-91ae-364da2661108 packetstormsecurity.com Third Party Advisory, VDB Entry
Netfilter nft_set_elem_init Heap Overflow Privilege Escalation ≈ Packet Storm af854a3a-2127-422b-91ae-364da2661108 packetstormsecurity.com Exploit, Third Party Advisory, VDB Entry
Debian -- Security Information -- DSA-5191-1 linux af854a3a-2127-422b-91ae-364da2661108 www.debian.org Third Party Advisory
kernel/git/netdev/net.git - Netdev Group's networking tree af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Mailing List, Patch, Vendor Advisory
[CVE-2022-34918] A crack in the Linux firewall af854a3a-2127-422b-91ae-364da2661108 www.randorisec.fr Exploit, Third Party Advisory
oss-security - Re: Linux kernel: Netfilter heap buffer overflow in nft_set_elem_init af854a3a-2127-422b-91ae-364da2661108 www.openwall.com Exploit, Mailing List, Third Party Advisory
cert-portal.siemens.com/productcert/html/ssa-806742.html 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e cert-portal.siemens.com
oss-security - Re: Linux kernel: Netfilter heap buffer overflow in nft_set_elem_init af854a3a-2127-422b-91ae-364da2661108 www.openwall.com Mailing List, Third Party Advisory
cert-portal.siemens.com/productcert/html/ssa-794697.html 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e cert-portal.siemens.com
[vs] Netfilter vulnerability disclosure af854a3a-2127-422b-91ae-364da2661108 lore.kernel.org
oss-security - Re: Linux kernel: Netfilter heap buffer overflow in nft_set_elem_init af854a3a-2127-422b-91ae-364da2661108 www.openwall.com Exploit, Mailing List, Third Party Advisory
CVE-2022-34918 Linux Kernel Vulnerability in NetApp Products | NetApp Product Security af854a3a-2127-422b-91ae-364da2661108 security.netapp.com Third Party Advisory
[vs] Netfilter vulnerability disclosure MITRE lore.kernel.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 160106 Oracle Enterprise Linux Security Update for unbreakable enterprise kernel (ELSA-2022-9827)
  • 160109 Oracle Enterprise Linux Security Update for unbreakable enterprise kernel-container (ELSA-2022-9830)
  • 160110 Oracle Enterprise Linux Security Update for kernel (ELSA-2022-6610)
  • 160776 Oracle Enterprise Linux Security Update for unbreakable enterprise kernel (ELSA-2023-12588)
  • 160777 Oracle Enterprise Linux Security Update for unbreakable enterprise kernel-container (ELSA-2023-12590)
  • 160778 Oracle Enterprise Linux Security Update for unbreakable enterprise kernel-container (ELSA-2023-12591)
  • 160949 Oracle Enterprise Linux Security Update for unbreakable enterprise kernel (ELSA-2023-12842)
  • 180900 Debian Security Update for linux (DSA 5191-1)
  • 182626 Debian Security Update for linux (CVE-2022-34918)
  • 198880 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-5544-1)
  • 198881 Ubuntu Security Notification for Linux kernel (OEM) Vulnerability (USN-5545-1)
  • 198891 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-5560-1)
  • 198894 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-5566-1)
  • 198895 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-5562-1)
  • 198897 Ubuntu Security Notification for Linux kernel (Intel IoTG) Vulnerabilities (USN-5564-1)
  • 198911 Ubuntu Security Notification for Linux kernel (Azure CVM) Vulnerabilities (USN-5582-1)
  • 240677 Red Hat Update for kpatch-patch (RHSA-2022:6592)
  • 240680 Red Hat Update for kernel security (RHSA-2022:6610)
  • 240682 Red Hat Update for kernel-rt (RHSA-2022:6582)
  • 282922 Fedora Security Update for kernel (FEDORA-2022-d280d3b05d)
  • 282923 Fedora Security Update for kernel (FEDORA-2022-b47003a52b)
  • 354011 Amazon Linux Security Advisory for kernel-livepatch : ALAS2LIVEPATCH-2022-089
  • 354014 Amazon Linux Security Advisory for kernel-livepatch : ALAS2LIVEPATCH-2022-087
  • 354016 Amazon Linux Security Advisory for kernel : ALAS2KERNEL-5.10-2022-018
  • 354020 Amazon Linux Security Advisory for kernel : ALAS2KERNEL-5.15-2022-005
  • 354027 Amazon Linux Security Advisory for kernel-livepatch : ALAS2LIVEPATCH-2022-090
  • 354028 Amazon Linux Security Advisory for kernel-livepatch : ALAS2LIVEPATCH-2022-088
  • 354049 Amazon Linux Security Advisory for kernel : ALAS2KERNEL-5.4-2022-034
  • 354270 Amazon Linux Security Advisory for kernel : ALAS2022-2022-114
  • 354468 Amazon Linux Security Advisory for kernel : ALAS2022-2022-185
  • 354542 Amazon Linux Security Advisory for kernel : ALAS-2022-185
  • 355199 Amazon Linux Security Advisory for kernel : ALAS2023-2023-070
  • 355545 Amazon Linux Security Advisory for kernel : ALAS2-2023-2100
  • 355557 Amazon Linux Security Advisory for kernel : ALAS-2023-1773
  • 377117 Alibaba Cloud Linux Security Update for cloud-kernel (ALINUX3-SA-2022:0158)
  • 390290 Oracle Managed Virtualization (VM) Server for x86 Security Update for kernel (OVMSA-2023-0023)
  • 6140381 AWS Bottlerocket Security Update for kernel (GHSA-89wg-9m7j-mxmm)
  • 672086 EulerOS Security Update for kernel (EulerOS-SA-2022-2321)
  • 672114 EulerOS Security Update for kernel (EulerOS-SA-2022-2292)
  • 672139 EulerOS Security Update for kernel (EulerOS-SA-2022-2428)
  • 672141 EulerOS Security Update for kernel (EulerOS-SA-2022-2441)
  • 672158 EulerOS Security Update for kernel (EulerOS-SA-2022-2415)
  • 672205 EulerOS Security Update for kernel (EulerOS-SA-2022-2466)
  • 672218 EulerOS Security Update for kernel (EulerOS-SA-2022-2619)
  • 752364 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2022:2422-1)
  • 752370 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2022:2520-1)
  • 752391 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2022:2549-1)
  • 753148 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2022:2615-1)
  • 753184 SUSE Enterprise Linux Security Update for the Linux Kernel (Live Patch 11 for SLE 15 SP3) (SUSE-SU-2022:2738-1)
  • 753216 SUSE Enterprise Linux Security Update for the Linux Kernel (Live Patch 16 for SLE 15 SP3) (SUSE-SU-2022:2727-1)
  • 753219 SUSE Enterprise Linux Security Update for the Linux Kernel (Live Patch 14 for SLE 15 SP3) (SUSE-SU-2022:2726-1)
  • 753271 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2022:2424-1)
  • 753294 SUSE Enterprise Linux Security Update for the Linux Kernel (Live Patch 19 for SLE 15 SP3) (SUSE-SU-2022:2696-1)
  • 753315 SUSE Enterprise Linux Security Update for the Linux Kernel (Live Patch 18 for SLE 15 SP3) (SUSE-SU-2022:2759-1)
  • 753319 SUSE Enterprise Linux Security Update for the Linux Kernel (Live Patch 7 for SLE 15 SP3) (SUSE-SU-2022:2766-1)
  • 753362 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2022:2376-1)
  • 753481 SUSE Enterprise Linux Security Update for the Linux Kernel (Live Patch 9 for SLE 15 SP3) (SUSE-SU-2022:2770-1)
  • 753489 SUSE Enterprise Linux Security Update for the Linux Kernel (Live Patch 17 for SLE 15 SP3) (SUSE-SU-2022:2732-1)
  • 753491 SUSE Enterprise Linux Security Update for the Linux Kernel (Live Patch 0 for SLE 15 SP4) (SUSE-SU-2022:2854-1)
  • 902451 Common Base Linux Mariner (CBL-Mariner) Security Update for kernel (10078)
  • 902453 Common Base Linux Mariner (CBL-Mariner) Security Update for kernel (10075)
  • 902643 Common Base Linux Mariner (CBL-Mariner) Security Update for kernel (10075-1)
  • 902678 Common Base Linux Mariner (CBL-Mariner) Security Update for kernel (10078-1)
  • 906135 Common Base Linux Mariner (CBL-Mariner) Security Update for kernel (10078-2)
  • 906458 Common Base Linux Mariner (CBL-Mariner) Security Update for kernel (10075-2)
  • 940681 AlmaLinux Security Update for kernel (ALSA-2022:6610)
  • 940697 AlmaLinux Security Update for kernel-rt (ALSA-2022:6582)

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