CVE-2022-43945

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Summary

CVECVE-2022-43945
StatePUBLISHED
AssignerSNPS
Source PriorityCVE Program / NVD first with legacy fallback
Published2022-11-04 19:15:11 UTC
Updated2026-05-12 10:16:38 UTC
DescriptionThe Linux kernel NFSD implementation prior to versions 5.19.17 and 6.0.2 are vulnerable to buffer overflow. NFSD tracks the number of pages held by each NFSD thread by combining the receive and send buffers of a remote procedure call (RPC) into a single array of pages. A client can force the send buffer to shrink by sending an RPC message over TCP with garbage data added at the end of the message. The RPC message with garbage data is still correctly formed according to the specification and is passed forward to handlers. Vulnerable code in NFSD is not expecting the oversized request and writes beyond the allocated buffer space. CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Risk And Classification

Primary CVSS: v3.1 7.5 HIGH from [email protected]

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

Problem Types: CWE-131 | CWE-770 | CWE-131 CWE-131: Incorrect Calculation of Buffer Size

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary7.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
3.1ADPDECLARED7.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
3.1134c704f-9b21-4f2e-91b3-4a467353bcc0Secondary7.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS v3.1 Breakdown

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

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux Kernel affected < 6.0.2 Not specified
ADP Siemens SIMATIC S7-1500 TM MFP - GNU/Linux Subsystem affected * custom Not specified

References

ReferenceSourceLinkTags
kernel/git/torvalds/linux.git - Linux kernel source tree af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Mailing List, Patch, Vendor Advisory
cert-portal.siemens.com/productcert/html/ssa-265688.html 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e cert-portal.siemens.com
CVE-2022-43945 Linux Kernel Vulnerability in NetApp Products | NetApp Product Security af854a3a-2127-422b-91ae-364da2661108 security.netapp.com Third Party Advisory
Kernel Live Patch Security Notice LNS-0092-1 ≈ Packet Storm af854a3a-2127-422b-91ae-364da2661108 packetstormsecurity.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 160423 Oracle Enterprise Linux Security Update for kernel (ELSA-2023-0334)
  • 160476 Oracle Enterprise Linux Security Update for kernel (ELSA-2023-0832)
  • 184401 Debian Security Update for linux (CVE-2022-43945)
  • 199055 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-5754-1)
  • 199057 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-5755-1)
  • 199061 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-5755-2)
  • 199071 Ubuntu Security Notification for Linux kernel (Azure) Vulnerabilities (USN-5754-2)
  • 199073 Ubuntu Security Notification for Linux kernel (OEM) Vulnerabilities (USN-5773-1)
  • 199078 Ubuntu Security Notification for Linux kernel (Azure) Vulnerabilities (USN-5779-1)
  • 199084 Ubuntu Security Notification for Linux kernel (OEM) Vulnerabilities (USN-5789-1)
  • 199105 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-5804-1)
  • 199106 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-5804-2)
  • 199111 Ubuntu Security Notification for Linux kernel (IBM) Vulnerabilities (USN-5808-1)
  • 199121 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-5813-1)
  • 199132 Ubuntu Security Notification for Linux kernel (Raspberry Pi) Vulnerabilities (USN-5829-1)
  • 199137 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-5830-1)
  • 199165 Ubuntu Security Notification for Linux kernel (Dell300x) Vulnerabilities (USN-5861-1)
  • 199180 Ubuntu Security Notification for Linux kernel (GKE) Vulnerabilities (USN-5875-1)
  • 199207 Ubuntu Security Notification for Linux kernel (OEM) Vulnerabilities (USN-5914-1)
  • 199213 Ubuntu Security Notification for Linux kernel (BlueField) Vulnerabilities (USN-5918-1)
  • 199490 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-5802-1)
  • 199519 Ubuntu Security Notification for Linux kernel (Azure) Vulnerabilities (USN-5863-1)
  • 199547 Ubuntu Security Notification for Linux kernel (AWS) Vulnerabilities (USN-5794-1)
  • 241008 Red Hat Update for kernel (RHSA-2022:8973)
  • 241009 Red Hat Update for kernel-rt (RHSA-2022:8974)
  • 241022 Red Hat Update for kpatch-patch (RHSA-2022:9082)
  • 241095 Red Hat Update for kernel (RHSA-2023:0334)
  • 241096 Red Hat Update for kernel-rt (RHSA-2023:0300)
  • 241101 Red Hat Update for kpatch-patch (RHSA-2023:0348)
  • 241202 Red Hat Update for kpatch-patch (RHSA-2023:0839)
  • 241204 Red Hat Update for kernel-rt (RHSA-2023:0854)
  • 241209 Red Hat Update for kernel (RHSA-2023:0832)
  • 355199 Amazon Linux Security Advisory for kernel : ALAS2023-2023-070
  • 753014 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2022:4505-1)
  • 753015 SUSE Enterprise Linux Security Update for the Linux Kernel (Live Patch 23 for SLE 15 SP3) (SUSE-SU-2022:4544-1)
  • 753016 SUSE Enterprise Linux Security Update for the Linux Kernel (Live Patch 24 for SLE 15 SP2) (SUSE-SU-2022:4587-1)
  • 753017 SUSE Enterprise Linux Security Update for the Linux Kernel (Live Patch 4 for SLE 15 SP4) (SUSE-SU-2022:4560-1)
  • 753018 SUSE Enterprise Linux Security Update for the Linux Kernel (Live Patch 31 for SLE 15) (SUSE-SU-2022:4577-1)
  • 753020 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2022:4585-1)
  • 753021 SUSE Enterprise Linux Security Update for the Linux Kernel (Live Patch 14 for SLE 15 SP3) (SUSE-SU-2022:4528-1)
  • 753022 SUSE Enterprise Linux Security Update for the Linux Kernel (Live Patch 20 for SLE 15 SP3) (SUSE-SU-2022:4551-1)
  • 753023 SUSE Enterprise Linux Security Update for the Linux Kernel (Live Patch 5 for SLE 15 SP4) (SUSE-SU-2022:4542-1)
  • 753025 SUSE Enterprise Linux Security Update for the Linux Kernel (Live Patch 32 for SLE 15 SP1) (SUSE-SU-2022:4506-1)
  • 753026 SUSE Enterprise Linux Security Update for the Linux Kernel (Live Patch 33 for SLE 15 SP1) (SUSE-SU-2022:4533-1)
  • 753029 SUSE Enterprise Linux Security Update for the Linux Kernel (Live Patch 25 for SLE 15 SP3) (SUSE-SU-2022:4517-1)
  • 753031 SUSE Enterprise Linux Security Update for the Linux Kernel (Live Patch 31 for SLE 15 SP2) (SUSE-SU-2022:4515-1)
  • 753032 SUSE Enterprise Linux Security Update for the Linux Kernel (Live Patch 27 for SLE 15 SP2) (SUSE-SU-2022:4513-1)
  • 753033 SUSE Enterprise Linux Security Update for the Linux Kernel (Live Patch 1 for SLE 15 SP4) (SUSE-SU-2022:4518-1)
  • 753034 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2022:4504-1)
  • 753035 SUSE Enterprise Linux Security Update for the Linux Kernel (Live Patch 30 for SLE 15 SP2) (SUSE-SU-2022:4534-1)
  • 753036 SUSE Enterprise Linux Security Update for the Linux Kernel (Live Patch 26 for SLE 15) (SUSE-SU-2022:4550-1)
  • 753037 SUSE Enterprise Linux Security Update for the Linux Kernel (Live Patch 26 for SLE 15 SP2) (SUSE-SU-2022:4580-1)
  • 753038 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2022:4573-1)
  • 753039 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2022:4574-1)
  • 753040 SUSE Enterprise Linux Security Update for the Linux Kernel (Live Patch 12 for SLE 15 SP3) (SUSE-SU-2022:4562-1)
  • 753041 SUSE Enterprise Linux Security Update for the Linux Kernel (Live Patch 24 for SLE 15 SP3) (SUSE-SU-2022:4516-1)
  • 753042 SUSE Enterprise Linux Security Update for the Linux Kernel (Live Patch 35 for SLE 15 SP1) (SUSE-SU-2022:4539-1)
  • 753043 SUSE Enterprise Linux Security Update for the Linux Kernel (Live Patch 26 for SLE 15 SP3) (SUSE-SU-2022:4572-1)
  • 753044 SUSE Enterprise Linux Security Update for the Linux Kernel (Live Patch 3 for SLE 15 SP4) (SUSE-SU-2022:4559-1)
  • 753045 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2022:4503-1)
  • 753046 SUSE Enterprise Linux Security Update for the Linux Kernel (Live Patch 30 for SLE 15 SP1) (SUSE-SU-2022:4527-1)
  • 753047 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2022:4566-1)
  • 753048 SUSE Enterprise Linux Security Update for the Linux Kernel (Live Patch 18 for SLE 15 SP3) (SUSE-SU-2022:4569-1)
  • 753049 SUSE Enterprise Linux Security Update for the Linux Kernel (Live Patch 26 for SLE 12 SP5) (SUSE-SU-2022:4520-1)
  • 753050 SUSE Enterprise Linux Security Update for the Linux Kernel (Live Patch 22 for SLE 15 SP3) (SUSE-SU-2022:4543-1)
  • 753051 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2022:4589-1)
  • 753060 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2022:4615-1)
  • 753061 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2022:4616-1)
  • 753062 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2022:4613-1)
  • 753063 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2022:4617-1)
  • 753980 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2023:2151-1)
  • 753981 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2023:2146-1)
  • 753982 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2023:2148-1)
  • 753985 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2023:2162-1)
  • 754005 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2023:2163-1)
  • 754023 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2023:2232-1)
  • 904441 Common Base Linux Mariner (CBL-Mariner) Security Update for kernel (11415)
  • 904475 Common Base Linux Mariner (CBL-Mariner) Security Update for kernel (11379)
  • 904714 Common Base Linux Mariner (CBL-Mariner) Security Update for kernel (11379-1)
  • 904755 Common Base Linux Mariner (CBL-Mariner) Security Update for kernel (11415-1)
  • 906209 Common Base Linux Mariner (CBL-Mariner) Security Update for kernel (11415-2)
  • 906448 Common Base Linux Mariner (CBL-Mariner) Security Update for kernel (11379-2)
  • 940904 AlmaLinux Security Update for kernel (ALSA-2023:0334)
  • 940910 AlmaLinux Security Update for kernel-rt (ALSA-2023:0300)
  • 940926 AlmaLinux Security Update for kernel (ALSA-2023:0832)
  • 940936 AlmaLinux Security Update for kernel-rt (ALSA-2023:0854)
  • 960503 Rocky Linux Security Update for kernel-rt (RLSA-2023:0300)
  • 960587 Rocky Linux Security Update for kernel (RLSA-2023:0334)
  • 960651 Rocky Linux Security Update for kernel (RLSA-2023:0832)
  • 960656 Rocky Linux Security Update for kernel-rt (RLSA-2023:0854)
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