CVE-2018-0019

Junos: Denial of service vulnerability in SNMP MIB-II subagent daemon (mib2d).

MEDIUM

5.3

CVSS Score

Published: April 11, 2018 at 07:00 PM UTC

Updated: June 17, 2026 at 01:29 AM UTC

12 products affected across 2 vendorsJunosQfx5200Qfx5110

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Severity

MEDIUM5.3

Exploit prediction

EPSS 1%

Description

A vulnerability in Junos OS SNMP MIB-II subagent daemon (mib2d) may allow a remote network based attacker to cause the mib2d process to crash resulting in a denial of service condition (DoS) for the SNMP subsystem. While a mib2d process crash can disrupt the network monitoring via SNMP, it does not impact routing, switching or firewall functionalities. SNMP is disabled by default on devices running Junos OS. Affected releases are Juniper Networks Junos OS: 12.1X46 versions prior to 12.1X46-D76; 12.3 versions prior to 12.3R12-S7, 12.3R13; 12.3X48 versions prior to 12.3X48-D65; 14.1 versions prior to 14.1R9; 14.1X53 versions prior to 14.1X53-D130; 15.1 versions prior to 15.1F2-S20, 15.1F6-S10, 15.1R7; 15.1X49 versions prior to 15.1X49-D130; 15.1X53 versions prior to 15.1X53-D233, 15.1X53-D471, 15.1X53-D472, 15.1X53-D58, 15.1X53-D66; 16.1 versions prior to 16.1R5-S3, 16.1R7; 16.1X65 versions prior to 16.1X65-D47; 16.1X70 versions prior to 16.1X70-D10; 16.2 versions prior to 16.2R1-S6, 16.2R2-S5, 16.2R3; 17.1 versions prior to 17.1R2-S6, 17.1R3;

Affected

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

Junos · Juniper Networks

95%

12.1X46 ≤ v < 12.1X46-D7612.3 ≤ v < 12.3R12-S7, 12.3R1312.3X48 ≤ v < 12.3X48-D6514.1 ≤ v < 14.1R914.1X53 ≤ v < 14.1X53-D13015.1 ≤ v < 15.1F2-S20, 15.1F6-S10, 15.1R715.1X49 ≤ v < 15.1X49-D13015.1X53 ≤ v < 15.1X53-D233, 15.1X53-D471, 15.1X53-D472, 15.1X53-D58, 15.1X53-D6616.1 ≤ v < 16.1R5-S3, 16.1R716.1X65 ≤ v < 16.1X65-D4716.1X70 ≤ v < 16.1X70-D1016.2 ≤ v < 16.2R1-S6, 16.2R2-S5, 16.2R317.1 ≤ v < 17.1R2-S6, 17.1R312.1X4612.1x4612.1x46 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 12.3 12.3 r1 12.3 r10 12.3 r11 12.3 r12 12.3 r2 12.3 r3 12.3 r4 12.3 r5 12.3 r6 12.3 r7 12.3 r8 12.3 r9 12.3X4812.3x4812.3x48 d10 12.3x48 d15 12.3x48 d20 12.3x48 d25 12.3x48 d30 12.3x48 d35 12.3x48 d40 12.3x48 d45 12.3x48 d50 12.3x48 d55 12.3x48 d60 14.1 14.1 r1 14.1 r2 14.1 r3 14.1 r4 14.1 r5 14.1 r6 14.1 r7 14.1 r8 14.1X5314.1x5314.1x53 d121 14.1x53 d15 14.1x53 d16 14.1x53 d25 14.1x53 d26 14.1x53 d27 14.1x53 d30 14.1x53 d35 14.1x53 d40 14.1x53 d42 14.1x53 d43 14.1x53 d44 14.1x53 d45 14.1x53 d46 14.2 14.2 r1 14.2 r2 14.2 r3 14.2 r4 14.2 r5 14.2 r6 14.2 r7 15.1 15.1 f1 15.1 f2 15.1 f3 15.1 f4 15.1 f6 15.1 r1 15.1 r2 15.1 r3 15.1 r4 15.1 r6 15.1X49 15.1X5315.1x4915.1x49 d10 15.1x49 d100 15.1x49 d110 15.1x49 d120 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 d9015.1x5315.1x53 d10 15.1x53 d20 15.1x53 d21 15.1x53 d210 15.1x53 d230 15.1x53 d231 15.1x53 d23215.1x53 d23315.1x53 d30 15.1x53 d32 15.1x53 d33 15.1x53 d34 15.1x53 d470 15.1x53 d50 15.1x53 d51 15.1x53 d52 15.1x53 d55 15.1x53 d57 15.1x53 d58 15.1x53 d60 15.1x53 d61 15.1x53 d62 15.1x53 d63 15.1x53 d64 15.1x53 d65 15.1x53 d66 16.1 16.1 r1 16.1 r2 16.1 r3 16.1 r4 16.1 r5 16.1X65 16.1X70 16.1x65 d30 16.1x65 d35 16.1x65 d4016.1x7016.2 16.2 r1 16.2 r2 16.2 r3 17.1 17.1 r1 17.1 r2 17.1 r3 17.2 r1 17.2 r2

Affected range stops below 12.1X46-D76, so it looks safe — our inference, not a vendor statement

Affected range stops below 12.3R12-S7, 12.3R13, so it looks safe — our inference, not a vendor statement

Affected range stops below 12.3X48-D65, so it looks safe — our inference, not a vendor statement

Affected range stops below 14.1R9, so it looks safe — our inference, not a vendor statement

Affected range stops below 14.1X53-D130, so it looks safe — our inference, not a vendor statement

Affected range stops below 15.1F2-S20, 15.1F6-S10, 15.1R7, so it looks safe — our inference, not a vendor statement

Affected range stops below 15.1X49-D130, so it looks safe — our inference, not a vendor statement

Affected range stops below 15.1X53-D233, 15.1X53-D471, 15.1X53-D472, 15.1X53-D58, 15.1X53-D66, so it looks safe — our inference, not a vendor statement

Affected range stops below 16.1R5-S3, 16.1R7, so it looks safe — our inference, not a vendor statement

Affected range stops below 16.1X65-D47, so it looks safe — our inference, not a vendor statement

Affected range stops below 16.1X70-D10, so it looks safe — our inference, not a vendor statement

Affected range stops below 16.2R1-S6, 16.2R2-S5, 16.2R3, so it looks safe — our inference, not a vendor statement

Affected range stops below 17.1R2-S6, 17.1R3, so it looks safe — our inference, not a vendor statement

Vendor states this is fixed in 17.2 (unaffected)

juniper-ex2300 (environment) · juniper-ex3400 (environment) · juniper-ex4300 (environment) · juniper-ex4600 (environment) · juniper-nfx150 (environment) · juniper-nfx250 (environment) · juniper-qfabric (environment) · juniper-qfx10 (environment) · juniper-qfx5100 (environment) · juniper-qfx5110 (environment) · juniper-qfx5200 (environment)

Ex2300 · Juniperdevice

80%

All versions

Ex3400 · Juniperdevice

80%

All versions

Ex4300 · Juniperdevice

80%

All versions

Ex4600 · Juniperdevice

80%

All versions