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Full vulnerability report · 2022
CVE-2022-3633High confidence

Linux Kernel transport.c j1939_session_destroy memory leak

Linux · Kernel

3.5LowCVSS 3.1
Recommended action
Scheduled

Low technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority.

Patch available
Distribution package intelligence

Ubuntu vendor package status

Canonical’s release and source-package findings are shown separately from local repository availability.

1 package state
Repository candidate not checked

A published vendor fix does not prove that a matching update is enabled and installable on a particular asset. Confirm the local package candidate before scheduling remediation.

Ubuntu releaseSource packageVendor stateFixed versionEvidence
Ubuntu 24.04 LTSnoble · standard archivelinux-raspi-realtimeAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical record ↗Source updated 8 Sept 2026
Direct vendor intelligence

Authoritative vendor CSAF and VEX advisories

Structured product status and remediation from the issuing vendor. Product-state explanations are always visible; large lists can be searched or downloaded.

1 current
SSA-794697 · CSAF 2.0 · revision 9 · interimSiemens ProductCERTSSA-794697: Vulnerabilities in the additional GNU/Linux subsystem of the SIMATIC S7-1500 TM MFP before V1.1
1 known affected

The vendor explicitly identifies these products as affected by this CVE.

  • SIMATIC S7-1500 TM MFP - GNU/Linux subsystem
Summary
A vulnerability classified as problematic has been found in Linux Kernel. Affected is the function j1939_session_destroy of the file net/can/j1939/transport.c. The manipulation leads to memory leak. It is recommended to apply a patch to fix this issue. The identifier of this vulnerability is VDB-211932.
Remediation
Update to V1.1 or later version
Optional official sources

National CERT insights
?CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.

Select the national-authority views to include. The exact source language is shown on each matched advisory. Your choice is remembered on this device and encoded in the shareable URL.

Official European source

ENISA European Vulnerability Database

Official EUVD identifiers, advisory evidence and known-exploited context. Missing fields are not treated as evidence of low risk.

1 current
ENISA EUVD identifier

EUVD-2022-42993

No EUVD known-exploited evidence

ENISA has published the identifier mapping but no EUVD description has been stored yet.

EUVD state
Present in the current official mapping
Known exploitation
Not present in the current ENISA EUVD known-exploited dataset. This is not proof of no exploitation.
ENISA score
Not supplied in the stored EUVD record
Advisory evidence
No linked advisory details stored yet
Recommended actionScheduled

Low technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority.

Patch available
01

What, why and how

A vulnerability classified as problematic has been found in Linux Kernel. Affected is the function j1939_session_destroy of the file net/can/j1939/transport.c. The manipulation leads to memory leak. It is recommended to apply a patch to fix this issue. The identifier of this vulnerability is VDB-211932.

What

A vulnerability classified as problematic has been found in Linux Kernel. Affected is the function j1939_session_destroy of the file net/can/j1939/transport.c. The manipulation leads to memory leak. It is recommended to apply a patch to fix this issue. The identifier of this vulnerability is VDB-211932.

Why

The product does not sufficiently track and release allocated memory after it has been used, making the memory unavailable for reallocation and reuse.

How

An attacker operating through an adjacent network may attempt exploitation with low privileges. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

What

A vulnerability classified as problematic has been found in Linux Kernel. Affected is the function j1939_session_destroy of the file net/can/j1939/transport.c. The manipulation leads to memory leak. It is recommended to apply a patch to fix this issue. The identifier of this vulnerability is VDB-211932.

Why

The product does not sufficiently track and release allocated memory after it has been used, making the memory unavailable for reallocation and reuse.

How

An attacker operating through an adjacent network may attempt exploitation with low privileges. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

02

Exploit reality and attack path

CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.

Observed exploitation
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
No confirmed evidence

No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.

Public PoC / exploit material
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
None recorded

No exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.

Likely attack path
an adjacent network → Missing Release of Memory after Effective Lifetime → cause the confidentiality, integrity or availability impact described by the vendor
Attack surface
Adjacent
Privileges required
Low: a basic authenticated account is required
User interaction
None
Attack complexity
Low: no specialised conditions are recorded
Security boundary
Unchanged: impact remains within the vulnerable component's security authority
Weakness
?CWE means Common Weakness Enumeration: a standard category for the underlying weakness.
CWE-401 ↗

CWE-401: Missing Release of Memory after Effective Lifetime. The product does not sufficiently track and release allocated memory after it has been used, making the memory unavailable for reallocation and reuse.

CVSS vector
?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

Common Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.

AVAdjacentAttack vector: The attacker must be on an adjacent or logically close network.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.PRLowPrivileges required: The attacker needs basic user-level privileges.UINoneUser interaction: No action by another user is required.SUnchangedScope: The security impact remains within the vulnerable component's authority.CNoneConfidentiality impact: No direct loss is represented by this metric.INoneIntegrity impact: No direct loss is represented by this metric.ALowAvailability impact: A successful attack can cause a limited loss.
Post-exploitation / living off the land
No specific living-off-the-land technique is confirmed in the structured sources. Monitor normal administration tools for activity inconsistent with the affected service's baseline.
CWE-401
A

Official authority intelligence

Only matched European and national findings are included. Language selectors and unavailable sources are omitted.

BSI · German · WID-SEC-W-2023-1432Siemens SIMATIC S7: Mehrere Schwachstellen

Ein Angreifer aus dem angrenzenden Netzwerk oder ein entfernter, anonymer, authentisierter, physischer oder lokaler Angreifer kann mehrere Schwachstellen in Siemens SIMATIC S7 ausnutzen, um beliebigen Code auszuführen, Sicherheitsmaßnahmen zu umgehen, vertrauliche Informationen offenzulegen, einen Denial-of-Service-Zustand herbeizuführen, seine Privilegien zu erweitern und Daten zu manipulieren.

Official advisory
BSI · German · WID-SEC-W-2022-1823Linux Kernel: Mehrere Schwachstellen

Ein entfernter, authentisierter Angreifer kann mehrere Schwachstellen in Linux Kernel ausnutzen, um einen Denial of Service Angriff durchzuführen oder weitere, nicht spezifizierte Auswirkungen zu erzielen.

Official advisory
CERT-FR · French · CERTFR-2025-AVI-1057Multiples vulnérabilités dans les produits VMware

CVERecord?id=CVE-2022-32208 Référence CVE CVE-2022-32221 https://www.cve.org/CVERecord?id=CVE-2022-32221 Référence CVE CVE-2022-33099 https://www.cve.org/CVERecord?id=CVE-2022-33099 Référence CVE CVE-2022-3358 https://www.cve.org/CVERecord?id=CVE-2022-3358 Référence CVE CVE-2022-35252 https://www.cve.org/CVERecord?id=CVE-2022-35252 Référence CVE CVE-2022-3534 https://www.cve.org/CVERecord?id=CVE-2022-3534 Référence CVE CVE-2022-35737 https://www.cve.org/CVERecord?id=CVE-2022-35737 Référence CVE CVE-2022-3602 https://www.cve.org/CVERecord?id=CVE-2022-3602 Référence CVE CVE-2022-3629 https://www.cve.org/CVERecord?id=CVE-2022-3629 Référence CVE CVE-2022-3633 https://www.cve.org/CVERecord?id=CVE-2022-3633 Référence CVE CVE-2022-37434 https://www.cve.org/CVERecord?id=CVE-2022-37434 Référence CVE CVE-2022-3786 https://www.cve.org/CVERecord?id=CVE-2022-3786 Référence CVE CVE-2022-37967 https://www.cve.org/CVERecord?id=CVE-2022-37967 Référence CVE CVE-2022-3903 https://www.cve.org/CVERecord?id=CVE-2022-3903 Référence CVE CVE-2022-3996 https://www.cve.org/CVERecord?id=CVE-2022-3996 Référence CVE CVE-2022-40303 https://www.cve.org/CVERecord?id=CVE-2022-40303 Référence CVE CVE-2022-40304 https://www.cve.org/CVERecord?id=CVE-2022-40304 Référence CVE CVE-2022-4203 https://www.cve.org/CVERecord?id=CVE-2022

Official advisory
CERT-FR · French · CERTFR-2023-AVI-0453Multiples vulnérabilités dans les produits Siemens

.org/CVERecord?id=CVE-2022-3586 Référence CVE CVE-2022-3594 https://www.cve.org/CVERecord?id=CVE-2022-3594 Référence CVE CVE-2022-3606 https://www.cve.org/CVERecord?id=CVE-2022-3606 Référence CVE CVE-2022-36123 https://www.cve.org/CVERecord?id=CVE-2022-36123 Référence CVE CVE-2022-3621 https://www.cve.org/CVERecord?id=CVE-2022-3621 Référence CVE CVE-2022-3625 https://www.cve.org/CVERecord?id=CVE-2022-3625 Référence CVE CVE-2022-3628 https://www.cve.org/CVERecord?id=CVE-2022-3628 Référence CVE CVE-2022-36280 https://www.cve.org/CVERecord?id=CVE-2022-36280 Référence CVE CVE-2022-3629 https://www.cve.org/CVERecord?id=CVE-2022-3629 Référence CVE CVE-2022-3633 https://www.cve.org/CVERecord?id=CVE-2022-3633 Référence CVE CVE-2022-3635 https://www.cve.org/CVERecord?id=CVE-2022-3635 Référence CVE CVE-2022-3646 https://www.cve.org/CVERecord?id=CVE-2022-3646 Référence CVE CVE-2022-3649 https://www.cve.org/CVERecord?id=CVE-2022-3649 Référence CVE CVE-2022-36879 https://www.cve.org/CVERecord?id=CVE-2022-36879 Référence CVE CVE-2022-36946 https://www.cve.org/CVERecord?id=CVE-2022-36946 Référence CVE CVE-2022-39188 https://www.cve.org/CVERecord?id=CVE-2022-39188 Référence CVE CVE-2022-39190 https://www.cve.org/CVERecord?id=CVE-2022-39190 Référence CVE CVE-2022-40307 https://www.cve.org/CVERecord?id=CVE-202

Official advisory
CERT-FR · French · CERTFR-2022-AVI-984Multiples vulnérabilités dans le noyau Linux de Debian LTS

.cve.org/CVERecord?id=CVE-2022-2905 Référence CVE CVE-2022-3028 https://www.cve.org/CVERecord?id=CVE-2022-3028 Référence CVE CVE-2022-3061 https://www.cve.org/CVERecord?id=CVE-2022-3061 Référence CVE CVE-2022-3176 https://www.cve.org/CVERecord?id=CVE-2022-3176 Référence CVE CVE-2022-3303 https://www.cve.org/CVERecord?id=CVE-2022-3303 Référence CVE CVE-2022-3586 https://www.cve.org/CVERecord?id=CVE-2022-3586 Référence CVE CVE-2022-3621 https://www.cve.org/CVERecord?id=CVE-2022-3621 Référence CVE CVE-2022-3625 https://www.cve.org/CVERecord?id=CVE-2022-3625 Référence CVE CVE-2022-3629 https://www.cve.org/CVERecord?id=CVE-2022-3629 Référence CVE CVE-2022-3633 https://www.cve.org/CVERecord?id=CVE-2022-3633 Référence CVE CVE-2022-3635 https://www.cve.org/CVERecord?id=CVE-2022-3635 Référence CVE CVE-2022-3646 https://www.cve.org/CVERecord?id=CVE-2022-3646 Référence CVE CVE-2022-3649 https://www.cve.org/CVERecord?id=CVE-2022-3649 Référence CVE CVE-2022-39188 https://www.cve.org/CVERecord?id=CVE-2022-39188 Référence CVE CVE-2022-3919 https://www.cve.org/CVERecord?id=CVE-2022-3919 Référence CVE CVE-2022-39190 https://www.cve.org/CVERecord?id=CVE-2022-39190 Référence CVE CVE-2022-39842 https://www.cve.org/CVERecord?id=CVE-2022-39842 Référence CVE CVE-2022-40307 https://www.cve.org/CVERecord?id=CVE-2022-

Official advisory
CERT-FR · French · CERTFR-2022-AVI-1125Multiples vulnérabilités dans le noyau Linux de SUSE

.cve.org/CVERecord?id=CVE-2022-3567 Référence CVE CVE-2022-3577 https://www.cve.org/CVERecord?id=CVE-2022-3577 Référence CVE CVE-2022-3586 https://www.cve.org/CVERecord?id=CVE-2022-3586 Référence CVE CVE-2022-3594 https://www.cve.org/CVERecord?id=CVE-2022-3594 Référence CVE CVE-2022-3619 https://www.cve.org/CVERecord?id=CVE-2022-3619 Référence CVE CVE-2022-3621 https://www.cve.org/CVERecord?id=CVE-2022-3621 Référence CVE CVE-2022-3625 https://www.cve.org/CVERecord?id=CVE-2022-3625 Référence CVE CVE-2022-3628 https://www.cve.org/CVERecord?id=CVE-2022-3628 Référence CVE CVE-2022-3629 https://www.cve.org/CVERecord?id=CVE-2022-3629 Référence CVE CVE-2022-3633 https://www.cve.org/CVERecord?id=CVE-2022-3633 Référence CVE CVE-2022-3635 https://www.cve.org/CVERecord?id=CVE-2022-3635 Référence CVE CVE-2022-3640 https://www.cve.org/CVERecord?id=CVE-2022-3640 Référence CVE CVE-2022-3643 https://www.cve.org/CVERecord?id=CVE-2022-3643 Référence CVE CVE-2022-3646 https://www.cve.org/CVERecord?id=CVE-2022-3646 Référence CVE CVE-2022-3649 https://www.cve.org/CVERecord?id=CVE-2022-3649 Référence CVE CVE-2022-36879 https://www.cve.org/CVERecord?id=CVE-2022-36879 Référence CVE CVE-2022-36946 https://www.cve.org/CVERecord?id=CVE-2022-36946 Référence CVE CVE-2022-3707 https://www.cve.org/CVERecord?id=CVE-2022-370

Official advisory
CERT-FR · French · CERTFR-2022-AVI-1044Multiples vulnérabilités dans le noyau Linux de SUSE

.cve.org/CVERecord?id=CVE-2022-3565 Référence CVE CVE-2022-3577 https://www.cve.org/CVERecord?id=CVE-2022-3577 Référence CVE CVE-2022-3586 https://www.cve.org/CVERecord?id=CVE-2022-3586 Référence CVE CVE-2022-3594 https://www.cve.org/CVERecord?id=CVE-2022-3594 Référence CVE CVE-2022-3619 https://www.cve.org/CVERecord?id=CVE-2022-3619 Référence CVE CVE-2022-3621 https://www.cve.org/CVERecord?id=CVE-2022-3621 Référence CVE CVE-2022-3625 https://www.cve.org/CVERecord?id=CVE-2022-3625 Référence CVE CVE-2022-3628 https://www.cve.org/CVERecord?id=CVE-2022-3628 Référence CVE CVE-2022-3629 https://www.cve.org/CVERecord?id=CVE-2022-3629 Référence CVE CVE-2022-3633 https://www.cve.org/CVERecord?id=CVE-2022-3633 Référence CVE CVE-2022-3640 https://www.cve.org/CVERecord?id=CVE-2022-3640 Référence CVE CVE-2022-3646 https://www.cve.org/CVERecord?id=CVE-2022-3646 Référence CVE CVE-2022-3649 https://www.cve.org/CVERecord?id=CVE-2022-3649 Référence CVE CVE-2022-39189 https://www.cve.org/CVERecord?id=CVE-2022-39189 Référence CVE CVE-2022-40476 https://www.cve.org/CVERecord?id=CVE-2022-40476 Référence CVE CVE-2022-40768 https://www.cve.org/CVERecord?id=CVE-2022-40768 Référence CVE CVE-2022-42703 https://www.cve.org/CVERecord?id=CVE-2022-42703 Référence CVE CVE-2022-42722 https://www.cve.org/CVERecord?id=CVE-202

Official advisory
CERT-FR · French · CERTFR-2022-AVI-1035Multiples vulnérabilités dans le noyau Linux de SUSE

.cve.org/CVERecord?id=CVE-2022-3565 Référence CVE CVE-2022-3577 https://www.cve.org/CVERecord?id=CVE-2022-3577 Référence CVE CVE-2022-3586 https://www.cve.org/CVERecord?id=CVE-2022-3586 Référence CVE CVE-2022-3594 https://www.cve.org/CVERecord?id=CVE-2022-3594 Référence CVE CVE-2022-3619 https://www.cve.org/CVERecord?id=CVE-2022-3619 Référence CVE CVE-2022-3621 https://www.cve.org/CVERecord?id=CVE-2022-3621 Référence CVE CVE-2022-3625 https://www.cve.org/CVERecord?id=CVE-2022-3625 Référence CVE CVE-2022-3628 https://www.cve.org/CVERecord?id=CVE-2022-3628 Référence CVE CVE-2022-3629 https://www.cve.org/CVERecord?id=CVE-2022-3629 Référence CVE CVE-2022-3633 https://www.cve.org/CVERecord?id=CVE-2022-3633 Référence CVE CVE-2022-3640 https://www.cve.org/CVERecord?id=CVE-2022-3640 Référence CVE CVE-2022-3646 https://www.cve.org/CVERecord?id=CVE-2022-3646 Référence CVE CVE-2022-3649 https://www.cve.org/CVERecord?id=CVE-2022-3649 Référence CVE CVE-2022-40476 https://www.cve.org/CVERecord?id=CVE-2022-40476 Référence CVE CVE-2022-40768 https://www.cve.org/CVERecord?id=CVE-2022-40768 Référence CVE CVE-2022-41674 https://www.cve.org/CVERecord?id=CVE-2022-41674 Référence CVE CVE-2022-42703 https://www.cve.org/CVERecord?id=CVE-2022-42703 Référence CVE CVE-2022-42719 https://www.cve.org/CVERecord?id=CVE-202

Official advisory
03

Patch and workaround

Operational remediation based on structured source evidence.

Status
?Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change.
Patch available
Affected
SIMATIC S7-1500 TM MFP - GNU/Linux subsystem
Fixed
An authoritative update reference is available, but the fixed version is not recorded in the structured CVE fields. Check the linked vendor advisory for the applicable release.
Action
Update to V1.1 or later version
Workaround
No verified workaround is recorded. Limit untrusted access and use least privilege until authoritative guidance is available.
04

Evidence and provenance

Published 21 Oct 2022 · Last source change 23 Apr 2025, 16:45 UTC · CWE-401 · Missing Release of Memory after Effective Lifetime

CVE recordCVE.org · 5.1
CVSS sourceCNA
EPSS source
?The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.
FIRST · tracked since 2026-08-14
European sourceENISA EUVD · EUVD-2022-42993
Product sourceVendor CSAF · Siemens ProductCERT
Remediation sourceVendor CSAF · Siemens ProductCERT
CWE sourceCNA
NVD statusNVD modified after enrichment

Core structured fields are present and their contributing authorities are shown above.

Material change intelligence

What changed after publication

View recent updates →

No material field changes have been recorded since change tracking began. Routine source refreshes and cosmetic edits are intentionally excluded.

Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
Fixed release or patch reference recorded
ENISA EUVD · EUVD-2022-42993↗Vendor CSAF · Siemens ProductCERT↗Patch or update reference↗CVE authority or vendor reference↗Official CVE record (CNA and ADP data)↗NVD record↗
Technical terms and abbreviations used in this report
CVE
Common Vulnerabilities and Exposures: the public identifier for one disclosed vulnerability.
CVSS
Common Vulnerability Scoring System: a technical severity framework; it is not patching priority by itself.
EPSS
Exploit Prediction Scoring System: FIRST's estimate of the probability that exploitation activity will be observed in the next 30 days; it is a forecast, not confirmation.
CWE
Common Weakness Enumeration: the standard category describing the underlying software or hardware weakness.
CNA
CVE Numbering Authority: an organisation authorised to assign and publish CVE records.
CISA ADP
Cybersecurity and Infrastructure Security Agency Authorized Data Publisher: structured enrichment added to a CVE record.
NVD
National Vulnerability Database: NIST's enrichment service for CVE records.
CERT / CSIRT
A computer security incident response team that publishes warnings or coordinates incident response.
PoC
Proof of concept: public material that demonstrates or helps reproduce exploitation.
CSAF
Common Security Advisory Framework: a machine-readable format for security advisories.
LoTL
Living off the land: abuse of legitimate tools or system functions during an attack.
Free version - for non-commercial use only.CVE-2022-3633 · cve.blacktree.nl