CVE-2018-1064: libvirt: Uncontrolled Resource Consumption

Recommended actionWithin 7 days

High technical severity; prioritise exposed affected systems while verifying vendor guidance.

Patch available

What, why and how

libvirt version before 4.2.0-rc1 is vulnerable to a resource exhaustion as a result of an incomplete fix for CVE-2018-5748 that affects QEMU monitor but now also triggered via QEMU guest agent.

What

libvirt version before 4.2.0-rc1 is vulnerable to a resource exhaustion as a result of an incomplete fix for CVE-2018-5748 that affects QEMU monitor but now also triggered via QEMU guest agent.

Why

The product does not properly control the allocation and maintenance of a limited resource.

How

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

What

libvirt version before 4.2.0-rc1 is vulnerable to a resource exhaustion as a result of an incomplete fix for CVE-2018-5748 that affects QEMU monitor but now also triggered via QEMU guest agent.

Why

The product does not properly control the allocation and maintenance of a limited resource.

How

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

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: a network path → Uncontrolled Resource Consumption → disrupt the affected service
Attack surface: Network
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: a standard category for the underlying weakness.: CWE-400 ↗
CWE-400: Uncontrolled Resource Consumption. The product does not properly control the allocation and maintenance of a limited resource.
CVSS vector ? CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Common Vulnerability Scoring System 3.0: the compact vector below is decoded into plain language.
AVNetworkAttack vector: The vulnerable component can be reached over a network.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: 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.

NetworkUnauthenticatedDenial of serviceCWE-400

Official authority intelligence

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

ENISA EUVD · EUVD-2018-11717Official EUVD mapping

0 linked advisory records.

Official EUVD record ↗

CERT-FR · French · CERTFR-2022-AVI-267Multiples vulnérabilités dans Juniper Networks Junos Space

id=CVE-2018-1000802 Référence CVE CVE-2018-1000876 https://www.cve.org/CVERecord?id=CVE-2018-1000876 Référence CVE CVE-2018-10360 https://www.cve.org/CVERecord?id=CVE-2018-10360 Référence CVE CVE-2018-10372 https://www.cve.org/CVERecord?id=CVE-2018-10372 Référence CVE CVE-2018-10373 https://www.cve.org/CVERecord?id=CVE-2018-10373 Référence CVE CVE-2018-10534 https://www.cve.org/CVERecord?id=CVE-2018-10534 Référence CVE CVE-2018-10535 https://www.cve.org/CVERecord?id=CVE-2018-10535 Référence CVE CVE-2018-1060 https://www.cve.org/CVERecord?id=CVE-2018-1060 Référence CVE CVE-2018-1061 https://www.cve.org/CVERecord?id=CVE-2018-1061 Référence CVE CVE-2018-1064 https://www.cve.org/CVERecord?id=CVE-2018-1064 Référence CVE CVE-2018-10733 https://www.cve.org/CVERecord?id=CVE-2018-10733 Référence CVE CVE-2018-10767 https://www.cve.org/CVERecord?id=CVE-2018-10767 Référence CVE CVE-2018-10768 https://www.cve.org/CVERecord?id=CVE-2018-10768 Référence CVE CVE-2018-1084 https://www.cve.org/CVERecord?id=CVE-2018-1084 Référence CVE CVE-2018-10897 https://www.cve.org/CVERecord?id=CVE-2018-10897 Référence CVE CVE-2018-10906 https://www.cve.org/CVERecord?id=CVE-2018-10906 Référence CVE CVE-2018-1113 https://www.cve.org/CVERecord?id=CVE-2018-1113 Référence CVE CVE-2018-1116 https://www.cve.org/CVERecord?id=CVE-20

Official advisory ↗

CERT-FR · French · CERTFR-2019-AVI-014Multiples vulnérabilités dans les produits Juniper

/CVERecord?id=CVE-2017-3142 Référence CVE CVE-2017-3143 https://www.cve.org/CVERecord?id=CVE-2017-3143 Référence CVE CVE-2017-3145 https://www.cve.org/CVERecord?id=CVE-2017-3145 Référence CVE CVE-2017-7375 https://www.cve.org/CVERecord?id=CVE-2017-7375 Référence CVE CVE-2018-0732 https://www.cve.org/CVERecord?id=CVE-2018-0732 Référence CVE CVE-2018-0737 https://www.cve.org/CVERecord?id=CVE-2018-0737 Référence CVE CVE-2018-1000004 https://www.cve.org/CVERecord?id=CVE-2018-1000004 Référence CVE CVE-2018-10301 https://www.cve.org/CVERecord?id=CVE-2018-10301 Référence CVE CVE-2018-1050 https://www.cve.org/CVERecord?id=CVE-2018-1050 Référence CVE CVE-2018-1064 https://www.cve.org/CVERecord?id=CVE-2018-1064 Référence CVE CVE-2018-10675 https://www.cve.org/CVERecord?id=CVE-2018-10675 Référence CVE CVE-2018-10872 https://www.cve.org/CVERecord?id=CVE-2018-10872 Référence CVE CVE-2018-10897 https://www.cve.org/CVERecord?id=CVE-2018-10897 Référence CVE CVE-2018-10901 https://www.cve.org/CVERecord?id=CVE-2018-10901 Référence CVE CVE-2018-10911 https://www.cve.org/CVERecord?id=CVE-2018-10911 Référence CVE CVE-2018-1124 https://www.cve.org/CVERecord?id=CVE-2018-1124 Référence CVE CVE-2018-1126 https://www.cve.org/CVERecord?id=CVE-2018-1126 Référence CVE CVE-2018-12020 https://www.cve.org/CVERecord?id=CVE-2

Official advisory ↗

JVN iPedia · Japanese · JVNDB-2018-003441libvirt におけるリソースの枯渇に関する脆弱性

libvirt には、リソースの枯渇に関する脆弱性が存在します。

Official advisory ↗

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: libvirt: before 4.2.0-rc1
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. If business-safe, reduce exposure to the affected interface and allow only trusted sources until authoritative guidance is available.

Evidence and provenance

Published 28 Mar 2018 · Last source change 17 Sept 2024, 01:51 UTC · CWE-400 · Uncontrolled Resource Consumption

CVE recordCVE.org · 5.1

CVSS sourceNIST NVD

EPSS source

The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.

FIRST · tracked since 2026-09-01

European sourceENISA EUVD · EUVD-2018-11717

Product sourceCNA

Remediation sourceCVE/CNA references

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 ↗

17 Sept 2024, 01:51 UTC
Vendor guidanceAuthoritative vendor guidance changed from vendor advisory to authoritative remediation link · patch.
Before
vendor advisory
After
authoritative remediation link · patch
af854a3a-2127-422b-91ae-364da2661108 ↗
17 Sept 2024, 01:51 UTC
Affected versionsThe structured affected or fixed version information changed.
Before
before 4.2.0-rc1 · Fixed: No fixed version is explicitly recorded in the structured CVE data.
After
before 4.2.0-rc1 · 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.
CNA ↗
17 Sept 2024, 01:51 UTC
Remediation statusRemediation status changed from Awaiting fix to Patch available.
Before
Awaiting fix
After
Patch available
af854a3a-2127-422b-91ae-364da2661108 ↗
17 Sept 2024, 01:51 UTC
SeveritySeverity changed from Unknown to High.
Before
Unknown
After
High
NIST NVD ↗
17 Sept 2024, 01:51 UTC
CVSS scoreCVSS score changed from not recorded to 7.5 (CVSS 3.0 · NIST NVD · CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).
Before
not recorded
After
7.5 (CVSS 3.0 · NIST NVD · CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
NIST NVD ↗
1 Sept 2026, 02:42 UTC
ENISA EUVD mappingEUVD-2018-11717 was added to the official ENISA EUVD mapping for this CVE.
Before
not recorded
After
{"euvdId":"EUVD-2018-11717"}
ENISA EUVD ↗
17 Sept 2024, 01:51 UTC
Catalogue recordCVE added to the BlackTree catalogue.
CNA ↗

2018-03-28CVE published

2024-09-17Fixed release or patch reference recorded

ENISA EUVD · EUVD-2018-11717↗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.

libvirt: Uncontrolled Resource Consumption

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

ENISA European Vulnerability Database

EUVD-2018-11717

What, why and how

Exploit reality and attack path

Official authority intelligence

Patch and workaround

Evidence and provenance

What changed after publication

libvirt: Uncontrolled Resource Consumption

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

EUVD-2018-11717

What, why and how

Exploit reality and attack path

Official authority intelligence

Patch and workaround

Evidence and provenance

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