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Full vulnerability report · 2017
CVE-2017-2315High confidence

Juniper Networks Junos OS on EX series Ethernet Switches with IPv6 enabled: Missing Release of Resource after Effective Lifetime

Juniper Networks · Junos OS on EX series Ethernet Switches with IPv6 enabled

7.5HighCVSS 3.0
Recommended action
Within 7 days

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

Mitigation available
R
Operational reassessment

Published severity in operational context

Open reassessment dashboard →
Published severityHighOperational priority:High, unchanged from published severity.unchanged

Evidence used

  • No CISA KEV confirmation is currently recorded.
  • The selected CVSS metric records a network-reachable, unauthenticated path with no user interaction.
  • EPSS is 2.48% for the current model date.

Compensating controls

  • Apply the linked authoritative mitigation while planning the permanent fix.
  • Restrict the affected network interface to trusted sources where business-safe.
  • Monitor vendor guidance and exploitation sources for a material change.

Verification

  1. Confirm that the asset runs Juniper Networks Junos OS on EX series Ethernet Switches with IPv6 enabled and falls inside the recorded affected range.
  2. Recheck the vendor advisory before scheduling a change because no verified fixed version is currently retained.
  3. Validate exposure, authentication requirements and compensating controls in the actual environment.
  4. Reopen this reassessment when CVSS, KEV, EPSS, exploit evidence or remediation changes.
Mitigation target: Within 30 daysRemediation target: Within 180 days

This automated reassessment organises public evidence. It does not know asset exposure, business impact or control effectiveness and does not replace CVSS or a human risk decision.

Optional official sources

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

Choose official national sources for this report. Each advisory shows its original language. Your selection is remembered on this device and included in shared links.

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-2017-11498

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

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

Mitigation available
01

What, why and how

On Juniper Networks EX Series Ethernet Switches running affected Junos OS versions, a vulnerability in IPv6 processing has been discovered that may allow a specially crafted IPv6 Neighbor Discovery (ND) packet destined to an EX Series Ethernet Switch to cause a slow memory leak. A malicious network-based packet flood of these crafted IPv6 NDP packets may eventually lead to resource exhaustion and a denial of service. The affected Junos OS versions are: 12.3 prior to 12.3R12-S4, 12.3R13; 13.3 prior to 13.3R10; 14.1 prior to 14.1R8-S3, 14.1R9; 14.1X53 prior ro 14.1X53-D12, 14.1X53-D40; 14.1X55 prior to 14.1X55-D35; 14.2 prior to 14.2R6-S4, 14.2R7-S6, 14.2R8; 15.1 prior to 15.1R5; 16.1 before 16.1R3; 16.2 before 16.2R1-S3, 16.2R2. 17.1R1 and all subsequent releases have a resolution for this vulnerability.

What

On Juniper Networks EX Series Ethernet Switches running affected Junos OS versions, a vulnerability in IPv6 processing has been discovered that may allow a specially crafted IPv6 Neighbor Discovery (ND) packet destined to an EX Series Ethernet Switch to cause a slow memory leak. A malicious network-based packet flood of these crafted IPv6 NDP packets may eventually lead to resource exhaustion and a denial of service. The affected Junos OS versions are: 12.3 prior to 12.3R12-S4, 12.3R13; 13.3 prior to 13.3R10; 14.1 prior to 14.1R8-S3, 14.1R9; 14.1X53 prior ro 14.1X53-D12, 14.1X53-D40; 14.1X55 prior to 14.1X55-D35; 14.2 prior to 14.2R6-S4, 14.2R7-S6, 14.2R8; 15.1 prior to 15.1R5; 16.1 before 16.1R3; 16.2 before 16.2R1-S3, 16.2R2. 17.1R1 and all subsequent releases have a resolution for this vulnerability.

Why

The product does not release a resource after its effective lifetime has ended, i.e., after the resource is no longer needed.

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

On Juniper Networks EX Series Ethernet Switches running affected Junos OS versions, a vulnerability in IPv6 processing has been discovered that may allow a specially crafted IPv6 Neighbor Discovery (ND) packet destined to an EX Series Ethernet Switch to cause a slow memory leak. A malicious network-based packet flood of these crafted IPv6 NDP packets may eventually lead to resource exhaustion and a denial of service. The affected Junos OS versions are: 12.3 prior to 12.3R12-S4, 12.3R13; 13.3 prior to 13.3R10; 14.1 prior to 14.1R8-S3, 14.1R9; 14.1X53 prior ro 14.1X53-D12, 14.1X53-D40; 14.1X55 prior to 14.1X55-D35; 14.2 prior to 14.2R6-S4, 14.2R7-S6, 14.2R8; 15.1 prior to 15.1R5; 16.1 before 16.1R3; 16.2 before 16.2R1-S3, 16.2R2. 17.1R1 and all subsequent releases have a resolution for this vulnerability.

Why

The product does not release a resource after its effective lifetime has ended, i.e., after the resource is no longer needed.

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.

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
a network path → Missing Release of Resource after Effective Lifetime → 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-772 ↗

CWE-772: Missing Release of Resource after Effective Lifetime. The product does not release a resource after its effective lifetime has ended, i.e., after the resource is no longer needed.

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-772
A

Official authority intelligence

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

Canadian Centre for Cyber Security · English · AV17-050Juniper Networks Security Advisories

attention to security advisories released by Juniper Networks. Assessment Juniper Networks has released product updates addressing security issues for multiple products. Affected Products: • Juniper EX Series • Juniper SRX, vSRX and J-Series • Junos OS • NorthStar Controller Application CVE References: CVE-2015-1349, CVE-2015-2808, CVE-2015-3209, CVE-2015-3456, CVE-2015-4620, CVE-2015-5307, CVE-2015-5477, CVE-2015-7973, CVE-2015-7979, CVE-2015-8104, CVE-2015-8138, CVE-2015-8158, CVE-2016-7427, CVE-2016-7429, CVE-2016-7431, CVE-2016-8864, CVE-2016-9131, CVE-2016-9147, CVE-2016-9310, CVE-2016-9311, CVE-2016-9444, CVE-2017-2312, CVE-2017-2313, CVE-2017-2315, CVE-2017-2316, CVE-2017-2317, CVE-2017-2318, CVE-2017-2319, CVE-2017-2320, CVE-2017-2321, CVE-2017-2322, CVE-2017-2323, CVE-2017-2324, CVE-2017-2325, CVE-2017-2326, CVE-2017-2327, CVE-2017-2328, , CVE-2017-2329, CVE-2017-2330, CVE-2017-2331, CVE-2017-2332, CVE-2017-2333, CVE-2017-2334, CVE-2017-2340 Suggested Action CCIRC recommends that system administrators test and deploy the vendor released updates on affected platforms accordingly. References: https://kb.juniper.net/InfoCenter/index?page=content&id=JSA10776 https://kb.juniper.net/InfoCenter/index?page=content&id=JSA10777 https://kb.juniper.net/InfoCenter/index?page=content&id=JSA10778

Official advisory ↗
CERT-FR · French · CERTFR-2017-AVI-111Multiples vulnérabilités dans les produits Juniper

.cve.org/CVERecord?id=CVE-2016-7431 Référence CVE CVE-2016-8864 https://www.cve.org/CVERecord?id=CVE-2016-8864 Référence CVE CVE-2016-9131 https://www.cve.org/CVERecord?id=CVE-2016-9131 Référence CVE CVE-2016-9147 https://www.cve.org/CVERecord?id=CVE-2016-9147 Référence CVE CVE-2016-9310 https://www.cve.org/CVERecord?id=CVE-2016-9310 Référence CVE CVE-2016-9311 https://www.cve.org/CVERecord?id=CVE-2016-9311 Référence CVE CVE-2016-9444 https://www.cve.org/CVERecord?id=CVE-2016-9444 Référence CVE CVE-2017-2312 https://www.cve.org/CVERecord?id=CVE-2017-2312 Référence CVE CVE-2017-2313 https://www.cve.org/CVERecord?id=CVE-2017-2313 Référence CVE CVE-2017-2315 https://www.cve.org/CVERecord?id=CVE-2017-2315 Référence CVE CVE-2017-2316 https://www.cve.org/CVERecord?id=CVE-2017-2316 Référence CVE CVE-2017-2317 https://www.cve.org/CVERecord?id=CVE-2017-2317 Référence CVE CVE-2017-2318 https://www.cve.org/CVERecord?id=CVE-2017-2318 Référence CVE CVE-2017-2319 https://www.cve.org/CVERecord?id=CVE-2017-2319 Référence CVE CVE-2017-2320 https://www.cve.org/CVERecord?id=CVE-2017-2320 Référence CVE CVE-2017-2321 https://www.cve.org/CVERecord?id=CVE-2017-2321 Référence CVE CVE-2017-2322 https://www.cve.org/CVERecord?id=CVE-2017-2322 Référence CVE CVE-2017-2323 https://www.cve.org/CVERecord?id=CVE-2017-2323 Ré

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2017-003626Juniper Networks EX シリーズイーサネットスイッチ製品で稼動する Junos OS におけるリソースの枯渇に関する脆弱性

Juniper Networks EX シリーズイーサネットスイッチ製品で稼動する Junos OS には、リソースの枯渇に関する脆弱性が存在します。

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.
Mitigation available
Affected
Junos OS on EX series Ethernet Switches with IPv6 enabled: 12.3 prior to 12.3R12-S4, 12.3R13, 13.3 prior to 13.3R10, 14.1 prior to 14.1R8-S3, 14.1R9, 14.1X53 prior ro 14.1X53-D12, 14.1X53-D40, 14.1X55 prior to 14.1X55-D35, 14.2 prior to 14.2R6-S4, 14.2R7-S6, 14.2R8, 15.1 prior to 15.1R5, 16.1 before 16.1R3, 16.2 before 16.2R1-S3, 16.2R2, 17.1R1 and all subsequent releases have a resolution for this vulnerability
Fixed
No fixed version is explicitly recorded in the structured CVE data.
Action
Apply the mitigation in the linked authoritative guidance while planning the vendor's permanent fix.
Workaround
A mitigation or workaround reference is available from the source linked below; validate it against the affected product and version.
04

Evidence and provenance

Published 24 Apr 2017 · Last source change 5 Aug 2024, 13:48 UTC · CWE-772 · Missing Release of Resource after Effective Lifetime

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-2017-11498
Product sourceCNA
Remediation sourceCVE/CNA references
CWE sourceNIST NVD
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 ↗
  1. ENISA EUVD mappingEUVD-2017-11498 was added to the official ENISA EUVD mapping for this CVE.
    Before
    not recorded
    After
    {"euvdId":"EUVD-2017-11498"}
    ENISA EUVD ↗
  2. Vendor guidanceAuthoritative vendor guidance changed: added mitigation: kb.juniper.net/JSA10781; added remediation: kb.juniper.net/JSA10781.
    Before
    no authoritative guidance recorded
    After
    mitigation: kb.juniper.net/JSA10781 · remediation: kb.juniper.net/JSA10781
    kb.juniper.net ↗
  3. Remediation statusRemediation status changed from Awaiting fix to Mitigation available.
    Before
    Awaiting fix
    After
    Mitigation available
    kb.juniper.net ↗
  4. SeveritySeverity changed from Unknown to High.
    Before
    Unknown
    After
    High
    NIST NVD ↗
  5. 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 ↗
  6. Catalogue recordCVE added to the BlackTree catalogue.
    CNA ↗
Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
Mitigation reference recorded
ENISA EUVD · EUVD-2017-11498↗Mitigation 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-2017-2315 · cve.blacktree.nl