BlackTreeIndependent security intelligence
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Full vulnerability report · 2022
CVE-2022-21385High confidence

A flaw in net_rds_alloc_sgs() in Oracle Linux kernels allows unprivileged local users to crash the machine

Oracle Corporation · Oracle Linux

6.2MediumCVSS 3.1
Recommended action
Within 7 days

Medium technical severity with public exploit material referenced by a structured source; prioritise exposed affected systems while verifying vendor guidance.

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
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-2022-26609

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 actionWithin 7 days

Medium technical severity with public exploit material referenced by a structured source; prioritise exposed affected systems while verifying vendor guidance.

Patch available
01

What, why and how

A flaw in net_rds_alloc_sgs() in Oracle Linux kernels allows unprivileged local users to crash the machine. CVSS 3.1 Base Score 6.2 (Availability impacts). CVSS Vector (CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

What

A flaw in net_rds_alloc_sgs() in Oracle Linux kernels allows unprivileged local users to crash the machine. CVSS 3.1 Base Score 6.2 (Availability impacts). CVSS Vector (CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

Why

The current structured CVE record identifies a security weakness, but the root cause requires confirmation in the linked vendor material.

How

An attacker operating through local access may attempt exploitation without authentication or user interaction. If successful, the issue may disrupt the affected service.

What

A flaw in net_rds_alloc_sgs() in Oracle Linux kernels allows unprivileged local users to crash the machine. CVSS 3.1 Base Score 6.2 (Availability impacts). CVSS Vector (CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

Why

The current structured CVE record identifies a security weakness, but the root cause requires confirmation in the linked vendor material.

How

An attacker operating through local access may attempt exploitation without authentication or user interaction. If successful, the issue may disrupt the affected service.

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.
Reference recorded

A structured CVE source labels at least one public reference as exploit material. BlackTree has not independently validated that it is safe, reliable or weaponised.

Likely attack path
local access → vulnerable operation → disrupt the affected service
Attack surface
Local
Privileges required
None: unauthenticated exploitation is possible
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.
CWE not yet assigned
CVSS vector
?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

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

AVLocalAttack vector: The attacker needs local access to the vulnerable system.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.PRNonePrivileges required: The attacker does not need an account or existing 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.AHighAvailability impact: A successful attack can cause a major loss.
Post-exploitation / living off the land
The issue can support a local privilege or sandbox boundary transition; normal system utilities may then be available in the gained context.
UnauthenticatedDenial of servicePublic exploit reference
A

Official authority intelligence

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

BSI · German · WID-SEC-W-2024-0794Dell ECS: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in Dell ECS ausnutzen, um seine Privilegien zu erweitern, beliebigen Programmcode mit Administratorrechten auszuführen, Informationen offenzulegen, Dateien zu manipulieren, einen Cross-Site-Scripting-Angriff durchzuführen, Sicherheitsvorkehrungen zu umgehen oder einen Denial of Service Zustand herbeizuführen.

Official advisory
BSI · German · WID-SEC-W-2022-1262Oracle Linux: Schwachstelle ermöglicht Denial of Service

Ein lokaler Angreifer kann eine Schwachstelle in Oracle Linux ausnutzen, um einen Denial of Service Angriff durchzuführen.

Official advisory
CERT-FR · French · CERTFR-2023-AVI-0148Multiples vulnérabilités dans le noyau Linux de SUSE

d?id=CVE-2022-20132 Référence CVE CVE-2022-20166 https://www.cve.org/CVERecord?id=CVE-2022-20166 Référence CVE CVE-2022-20368 https://www.cve.org/CVERecord?id=CVE-2022-20368 Référence CVE CVE-2022-20369 https://www.cve.org/CVERecord?id=CVE-2022-20369 Référence CVE CVE-2022-21123 https://www.cve.org/CVERecord?id=CVE-2022-21123 Référence CVE CVE-2022-21125 https://www.cve.org/CVERecord?id=CVE-2022-21125 Référence CVE CVE-2022-21127 https://www.cve.org/CVERecord?id=CVE-2022-21127 Référence CVE CVE-2022-21166 https://www.cve.org/CVERecord?id=CVE-2022-21166 Référence CVE CVE-2022-21180 https://www.cve.org/CVERecord?id=CVE-2022-21180 Référence CVE CVE-2022-21385 https://www.cve.org/CVERecord?id=CVE-2022-21385 Référence CVE CVE-2022-21499 https://www.cve.org/CVERecord?id=CVE-2022-21499 Référence CVE CVE-2022-2318 https://www.cve.org/CVERecord?id=CVE-2022-2318 Référence CVE CVE-2022-2663 https://www.cve.org/CVERecord?id=CVE-2022-2663 Référence CVE CVE-2022-28356 https://www.cve.org/CVERecord?id=CVE-2022-28356 Référence CVE CVE-2022-29900 https://www.cve.org/CVERecord?id=CVE-2022-29900 Référence CVE CVE-2022-29901 https://www.cve.org/CVERecord?id=CVE-2022-29901 Référence CVE CVE-2022-3028 https://www.cve.org/CVERecord?id=CVE-2022-3028 Référence CVE CVE-2022-3105 https://www.cve.org/CVERecord?id=CVE-202

Official advisory
CERT-FR · French · CERTFR-2022-AVI-857Multiples vulnérabilités dans le noyau Linux de SUSE

De multiples vulnérabilités ont été corrigées dans le noyau Linux de SUSE . Elles permettent à un attaquant de provoquer une élévation de privilèges, un contournement de la politique de sécurité, un déni de service et une atteinte à la confidentialité des données.

Official advisory
CERT-FR · French · CERTFR-2022-AVI-826Multiples vulnérabilités dans le noyau Linux de SUSE

ERecord?id=CVE-2020-36557 Référence CVE CVE-2020-36558 https://www.cve.org/CVERecord?id=CVE-2020-36558 Référence CVE CVE-2021-33135 https://www.cve.org/CVERecord?id=CVE-2021-33135 Référence CVE CVE-2021-4037 https://www.cve.org/CVERecord?id=CVE-2021-4037 Référence CVE CVE-2021-4203 https://www.cve.org/CVERecord?id=CVE-2021-4203 Référence CVE CVE-2022-1184 https://www.cve.org/CVERecord?id=CVE-2022-1184 Référence CVE CVE-2022-20166 https://www.cve.org/CVERecord?id=CVE-2022-20166 Référence CVE CVE-2022-20368 https://www.cve.org/CVERecord?id=CVE-2022-20368 Référence CVE CVE-2022-20369 https://www.cve.org/CVERecord?id=CVE-2022-20369 Référence CVE CVE-2022-21385 https://www.cve.org/CVERecord?id=CVE-2022-21385 Référence CVE CVE-2022-2585 https://www.cve.org/CVERecord?id=CVE-2022-2585 Référence CVE CVE-2022-2588 https://www.cve.org/CVERecord?id=CVE-2022-2588 Référence CVE CVE-2022-26373 https://www.cve.org/CVERecord?id=CVE-2022-26373 Référence CVE CVE-2022-2639 https://www.cve.org/CVERecord?id=CVE-2022-2639 Référence CVE CVE-2022-2663 https://www.cve.org/CVERecord?id=CVE-2022-2663 Référence CVE CVE-2022-28356 https://www.cve.org/CVERecord?id=CVE-2022-28356 Référence CVE CVE-2022-28693 https://www.cve.org/CVERecord?id=CVE-2022-28693 Référence CVE CVE-2022-2873 https://www.cve.org/CVERecord?id=CVE-2022-

Official advisory
CERT-FR · French · CERTFR-2022-AVI-823Multiples vulnérabilités dans le noyau Linux de SUSE

nt/2022/suse-su-20223263-1/ Référence CVE CVE-2016-3695 https://www.cve.org/CVERecord?id=CVE-2016-3695 Référence CVE CVE-2019-3900 https://www.cve.org/CVERecord?id=CVE-2019-3900 Référence CVE CVE-2020-27784 https://www.cve.org/CVERecord?id=CVE-2020-27784 Référence CVE CVE-2020-36516 https://www.cve.org/CVERecord?id=CVE-2020-36516 Référence CVE CVE-2021-4155 https://www.cve.org/CVERecord?id=CVE-2021-4155 Référence CVE CVE-2021-4203 https://www.cve.org/CVERecord?id=CVE-2021-4203 Référence CVE CVE-2022-20368 https://www.cve.org/CVERecord?id=CVE-2022-20368 Référence CVE CVE-2022-20369 https://www.cve.org/CVERecord?id=CVE-2022-20369 Référence CVE CVE-2022-21385 https://www.cve.org/CVERecord?id=CVE-2022-21385 Référence CVE CVE-2022-2588 https://www.cve.org/CVERecord?id=CVE-2022-2588 Référence CVE CVE-2022-26373 https://www.cve.org/CVERecord?id=CVE-2022-26373 Référence CVE CVE-2022-2639 https://www.cve.org/CVERecord?id=CVE-2022-2639 Référence CVE CVE-2022-2663 https://www.cve.org/CVERecord?id=CVE-2022-2663 Référence CVE CVE-2022-2905 https://www.cve.org/CVERecord?id=CVE-2022-2905 Référence CVE CVE-2022-29581 https://www.cve.org/CVERecord?id=CVE-2022-29581 Référence CVE CVE-2022-2977 https://www.cve.org/CVERecord?id=CVE-2022-2977 Référence CVE CVE-2022-2991 https://www.cve.org/CVERecord?id=CVE-2022-29

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
*
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
Review the linked authoritative reference and apply the recorded fixed release appropriate to the affected product branch.
Workaround
No verified workaround is recorded. Limit untrusted access and use least privilege until authoritative guidance is available.
04

Evidence and provenance

Published 29 Aug 2022 · Last source change 23 Sept 2024, 18:26 UTC · CWE not yet assigned

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-2022-26609
Product sourceCNA
Remediation sourceCVE/CNA references
CWE sourceUnavailable
NVD statusNVD modified after enrichment

Missing structured fields: CWE classification. Missing data is not evidence of low risk; review the primary advisory.

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-2022-26609↗Public exploit 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-2022-21385 · cve.blacktree.nl