CVE-2017-2348

Junos OS: jdhcpd daemon crash due to invalid IPv6 UDP packets

HIGH

7.5

CVSS Score

Published: July 14, 2017 at 02:00 PM UTC

Updated: June 17, 2026 at 01:16 AM UTC

1 product affected across 1 vendorJunos

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Severity

HIGH7.5

Exploit prediction

EPSS 1%

Description

The Juniper Enhanced jdhcpd daemon may experience high CPU utilization, or crash and restart upon receipt of an invalid IPv6 UDP packet. Both high CPU utilization and repeated crashes of the jdhcpd daemon can result in a denial of service as DHCP service is interrupted. No other Juniper Networks products or platforms are affected by this issue. Affected releases are Juniper Networks Junos OS 14.1X53 prior to 14.1X53-D12, 14.1X53-D38, 14.1X53-D40 on QFX, EX, QFabric System; 15.1 prior to 15.1F2-S18, 15.1R4 on all products and platforms; 15.1X49 prior to 15.1X49-D80 on SRX; 15.1X53 prior to 15.1X53-D51, 15.1X53-D60 on NFX, QFX, EX.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Junos · Juniper Networks

95%

v < 14.1X53-D12v < 15.1F2-S18v < 15.1X49-D80v < 15.1X53-D5114.1x5314.1x53 d10 14.1x53 d38 14.1x53 d40 15.1 15.1 f1 15.1 f2 15.1 f2-s1 15.1 f2-s2 15.1 f2-s3 15.1 f2-s4 15.1 r415.1x4915.1x49 d10 15.1x49 d20 15.1x49 d30 15.1x49 d35 15.1x49 d40 15.1x49 d45 15.1x49 d50 15.1x49 d55 15.1x49 d60 15.1x49 d65 15.1x49 d70 15.1x49 d7515.1x5315.1x53 d10 15.1x53 d20 15.1x53 d21 15.1x53 d25 15.1x53 d30 15.1x53 d32 15.1x53 d33 15.1x53 d34 15.1x53 d47 15.1x53 d48 15.1x53 d60

Affected range stops below 14.1X53-D12, so it looks safe — our inference, not a vendor statement

Affected range stops below 15.1F2-S18, so it looks safe — our inference, not a vendor statement

Affected range stops below 15.1X49-D80, so it looks safe — our inference, not a vendor statement

Affected range stops below 15.1X53-D51, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

https://kb.juniper.net/JSA10800

References (2)

VDB Entryx_refsource_SECTRACKThird Party Advisory

Source: [email protected]

http://www.securitytracker.com/id/1038899

x_refsource_CONFIRMVendor Advisory

Source: [email protected]

https://kb.juniper.net/JSA10800

CVSS

7.5HIGHjuniper

Attack Vector: NETWORK
Complexity: LOW
Privileges: NONE
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: NONE
Integrity: NONE
Availability: HIGH

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-400

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