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CVE Record

CVE-2017-2344: Junos: Buffer overflow in sockets library

A routine within an internal Junos OS sockets library is vulnerable to a buffer overflow. Malicious exploitation of this issue may lead to a denial of service (kernel panic) or be leveraged as a privilege escalation through local code execution. The routines are only accessible via programs running on the device itself, and veriexec restricts arbitrary programs from running on Junos OS. There are no known exploit vectors utilizing signed binaries shipped with Junos OS itself. Affected releases are Juniper Networks Junos OS 12.1X46 prior to 12.1X46-D67; 12.3X48 prior to 12.3X48-D51, 12.3X48-D55; 13.3 prior to 13.3R10-S2; 14.1 prior to 14.1R2-S10, 14.1R8-S4, 14.1R9; 14.1X50 prior to 14.1X50-D185; 14.1X53 prior to 14.1X53-D122, 14.1X53-D45, 14.1X53-D50; 14.2 prior to 14.2R4-S9, 14.2R7-S7, 14.2R8; 15.1 prior to 15.1F2-S18, 15.1F6-S7, 15.1R4-S8, 15.1R5-S5, 15.1R6-S1, 15.1R7; 15.1X49 prior to 15.1X49-D100; 15.1X53 prior to 15.1X53-D231, 15.1X53-D47, 15.1X53-D48, 15.1X53-D57, 15.1X53-D64, 15.1X53-D70; 16.1 prior to 16.1R3-S4, 16.1R4-S3, 16.1R4-S4, 16.1R5; 16.2 prior to 16.2R2; 17.1 prior to 17.1R1-S3, 17.1R2; 17.2 prior to 17.2R1-S1, 17.2R2; 17.2X75 prior to 17.2X75-D30. No other Juniper Networks products or platforms are affected by this issue.

HighCVSS 7.8Not KEV-listedUpdated
Glexia's TakeAutomated analysis

Security readout for executives and security teams

This is a high-severity Juniper Junos OS flaw that could crash a device or allow local privilege escalation. It is not described as remotely reachable; the vulnerable routines are only accessible by programs already running on the device. Business risk is highest for organizations still operating the listed older Junos releases. Exposure is limited to Juniper Networks Junos OS versions listed as vulnerable in the advisory. The source bundle states no other Juniper Networks products or platforms are affected. Because access is local to programs running on the device, internet-facing exposure alone does not establish exploitability. Treat as high priority for legacy Junos estates, especially core routing, firewall, or service-provider infrastructure. The issue is not presented as remote wormable exploitation, but a successful local attack could affect confidentiality, integrity, and availability of critical network devices. Mitigation focus: Inventory Junos OS versions across routers, firewalls, and network appliances.; Upgrade affected Junos OS releases to the fixed versions named by Juniper.; Prioritize devices with local users, automation hooks, or delegated operational access..

Prepared

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

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Execution behavior lookup

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Privilege behavior lookup

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CVE-2017-2344 mapping review

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Vulnerability profileCVE Program record
Severity
High
CVSS
7.8 (3.0)
Known Exploited
No
Published

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
7.8CVSS 3.0HighCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H1.85.9Primary CVE score

Vulnerability scoring details

Base CVSS 3.0 score

7.8High
CVSS 3.0 vector shape for CVE-2017-2344Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
Juniper NetworksJunos OS12.1X46 prior to 12.1X46-D67, 12.3X48 prior to 12.3X48-D51, 12.3X48-D55, 13.3 prior to 13.3R10-S2, 14.1 prior to 14.1R2-S10, 14.1R8-S4, 14.1R9, 14.1X50 prior to 14.1X50-D185, 14.1X53 prior to 14.1X53-D122, 14.1X53-D45, 14.1X53-D50, 14.2 prior to 14.2R4-S9, 14.2R7-S7, 14.2R8, 15.1 prior to 15.1F2-S18, 15.1F6-S7, 15.1R4-S8, 15.1R5-S5, 15.1R6-S1, 15.1R7, 15.1X49 prior to 15.1X49-D100, 15.1X53 prior to 15.1X53-D231, 15.1X53-D47, 15.1X53-D48, 15.1X53-D57, 15.1X53-D64, 15.1X53-D70, 16.1 prior to 16.1R3-S4, 16.1R4-S3, 16.1R4-S4, 16.1R5, 16.2 prior to 16.2R2, 17.1 prior to 17.1R1-S3, 17.1R2, 17.2 prior to 17.2R1-S1, 17.2R2, 17.2X75 prior to 17.2X75-D30Listed
Weakness

CWE details

No CWE listed

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