CVE-2017-10605

Junos: SRX Series denial of service vulnerability in flowd due to crafted DHCP packet

HIGH

8.6

CVSS Score

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

Updated: June 17, 2026 at 01:00 AM UTC

14 products affected across 2 vendorsJunosSRX5600SRX5800

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Severity

HIGH8.6

Exploit prediction

EPSS 2%

Description

On all vSRX and SRX Series devices, when the DHCP or DHCP relay is configured, specially crafted packet might cause the flowd process to crash, halting or interrupting traffic from flowing through the device(s). Repeated crashes of the flowd process may constitute an extended denial of service condition for the device(s). If the device is configured in high-availability, the RG1+ (data-plane) will fail-over to the secondary node. If the device is configured in stand-alone, there will be temporary traffic interruption until the flowd process is restored automatically. Sustained crafted packets may cause the secondary failover node to fail back, or fail completely, potentially halting flowd on both nodes of the cluster or causing flip-flop failovers to occur. No other Juniper Networks products or platforms are affected by this issue. Affected releases are Juniper Networks Junos OS 12.1X46 prior to 12.1X46-D67 on vSRX or SRX Series; 12.3X48 prior to 12.3X48-D50 on vSRX or SRX Series; 15.1X49 prior to 15.1X49-D91, 15.1X49-D100 on vSRX or SRX Series.

Affected

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

Junos · Juniper Networks

95%

v < 12.1X46-D67v < 12.3X48-D50v < 15.1X49-D9112.1x4612.1x46 d10 12.1x46 d15 12.1x46 d2012.1x46 d2512.1x46 d30 12.1x46 d35 12.1x46 d40 12.1x46 d45 12.1x46 d50 12.1x46 d55 12.1x46 d60 12.1x46 d65 12.3x48 d10 12.3x48 d15 12.3x48 d20 12.3x48 d25 12.3x48 d30 12.3x48 d35 15.1x49 d10 15.1x49 d100 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 d75 15.1x49 d80 15.1x49 d90

Affected range stops below 12.1X46-D67, so it looks safe — our inference, not a vendor statement

Affected range stops below 12.3X48-D50, so it looks safe — our inference, not a vendor statement

Affected range stops below 15.1X49-D91, so it looks safe — our inference, not a vendor statement

juniper-srx100 (environment) · juniper-srx110 (environment) · juniper-srx1400 (environment) · juniper-srx210 (environment) · juniper-srx220 (environment) · juniper-srx240 (environment) · juniper-srx3400 (environment) · juniper-srx3600 (environment) · juniper-srx5400 (environment) · juniper-srx550 (environment) · juniper-srx5600 (environment) · juniper-srx5800 (environment) · juniper-srx650 (environment)

SRX100 · Juniperdevice

80%

All versions

SRX110 · Juniperdevice

80%

All versions

SRX1400 · Juniperdevice

80%

All versions

SRX210 · Juniperdevice

80%

All versions