medium
5.9
CWE
20
Advisory Published
Updated

CVE-2018-0019: Junos: Denial of service vulnerability in SNMP MIB-II subagent daemon (mib2d).

First published: Wed Apr 11 2018(Updated: )

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;

Credit: sirt@juniper.net

Affected SoftwareAffected VersionHow to fix
Juniper Junos=15.1x49
Juniper Junos=15.1x49-d10
Juniper Junos=15.1x49-d100
Juniper Junos=15.1x49-d110
Juniper Junos=15.1x49-d120
Juniper Junos=15.1x49-d20
Juniper Junos=15.1x49-d30
Juniper Junos=15.1x49-d35
Juniper Junos=15.1x49-d40
Juniper Junos=15.1x49-d45
Juniper Junos=15.1x49-d50
Juniper Junos=15.1x49-d55
Juniper Junos=15.1x49-d60
Juniper Junos=15.1x49-d65
Juniper Junos=15.1x49-d70
Juniper Junos=15.1x49-d75
Juniper Junos=15.1x49-d80
Juniper Junos=15.1x49-d90
Juniper Junos=14.1
Juniper Junos=14.1-r1
Juniper Junos=14.1-r2
Juniper Junos=14.1-r3
Juniper Junos=14.1-r4
Juniper Junos=14.1-r5
Juniper Junos=14.1-r6
Juniper Junos=14.1-r7
Juniper Junos=14.1-r8
Juniper Junos=14.1x53
Juniper Junos=14.1x53-d15
Juniper Junos=14.1x53-d16
Juniper Junos=14.1x53-d25
Juniper Junos=14.1x53-d26
Juniper Junos=14.1x53-d27
Juniper Junos=14.1x53-d30
Juniper Junos=14.1x53-d35
Juniper Junos=14.1x53-d40
Juniper Junos=14.1x53-d42
Juniper Junos=14.1x53-d43
Juniper Junos=14.1x53-d44
Juniper Junos=14.1x53-d45
Juniper Junos=14.1x53-d46
Juniper EX4300-24T
Juniper EX4600
Juniper QFX5100
Juniper Junos=15.1x53
Juniper Junos=15.1x53-d10
Juniper Junos=15.1x53-d20
Juniper Junos=15.1x53-d21
Juniper Junos=15.1x53-d30
Juniper Junos=15.1x53-d32
Juniper Junos=15.1x53-d33
Juniper Junos=15.1x53-d34
Juniper Junos=15.1x53-d50
Juniper Junos=15.1x53-d51
Juniper Junos=15.1x53-d52
Juniper Junos=15.1x53-d55
Juniper Junos=15.1x53-d57
Juniper EX2300-24T
Juniper EX3400
Juniper Junos=16.1-r1
Juniper Junos=16.1-r2
Juniper Junos=16.1-r3
Juniper Junos=16.1-r4
Juniper Junos=16.1-r5
Juniper Junos=16.2-r1
Juniper Junos=16.2-r2
Juniper Junos=16.2-r3
Juniper Junos=17.1-r1
Juniper Junos=17.1-r2
Juniper Junos=17.1-r3
Juniper Junos=15.1
Juniper Junos=15.1-r1
Juniper Junos=15.1-r2
Juniper Junos=15.1-r3
Juniper Junos=15.1-r4
Juniper Junos=15.1-r6
Juniper Junos=12.1x46
Juniper Junos=12.1x46-d10
Juniper Junos=12.1x46-d15
Juniper Junos=12.1x46-d20
Juniper Junos=12.1x46-d25
Juniper Junos=12.1x46-d30
Juniper Junos=12.1x46-d35
Juniper Junos=12.1x46-d40
Juniper Junos=12.1x46-d45
Juniper Junos=12.1x46-d50
Juniper Junos=12.1x46-d55
Juniper Junos=12.1x46-d60
Juniper Junos=12.1x46-d65
Juniper Junos=12.3x48
Juniper Junos=12.3x48-d10
Juniper Junos=12.3x48-d15
Juniper Junos=12.3x48-d20
Juniper Junos=12.3x48-d25
Juniper Junos=12.3x48-d30
Juniper Junos=12.3x48-d35
Juniper Junos=12.3x48-d40
Juniper Junos=12.3x48-d45
Juniper Junos=12.3x48-d50
Juniper Junos=12.3x48-d55
Juniper Junos=12.3x48-d60
Juniper Junos=14.2
Juniper Junos=14.2-r1
Juniper Junos=14.2-r2
Juniper Junos=14.2-r3
Juniper Junos=14.2-r4
Juniper Junos=14.2-r5
Juniper Junos=14.2-r6
Juniper Junos=14.2-r7
Juniper Junos=15.1-f1
Juniper Junos=15.1-f2
Juniper Junos=15.1-f3
Juniper Junos=15.1-f4
Juniper Junos=15.1-f6
Juniper Junos=15.1x53-d210
Juniper Junos=15.1x53-d230
Juniper Junos=15.1x53-d231
Juniper Junos=15.1x53-d232
Juniper Junos=15.1x53-d58
Juniper Junos=15.1x53-d60
Juniper Junos=15.1x53-d61
Juniper Junos=15.1x53-d62
Juniper Junos=15.1x53-d63
Juniper Junos=15.1x53-d64
Juniper Junos=15.1x53-d65
Juniper Junos=15.1x53-d66
Juniper QFX5110
Juniper QFX5200-48Y
Juniper Junos=15.1x53-d233
Juniper Junos=15.1x53-d470
Juniper NFX
Juniper NFX
Juniper QFX10
Juniper Junos=17.2-r1
Juniper Junos=17.2-r2
Juniper Junos=12.3-r1
Juniper Junos=12.3-r10
Juniper Junos=12.3-r11
Juniper Junos=12.3-r12
Juniper Junos=12.3-r2
Juniper Junos=12.3-r3
Juniper Junos=12.3-r4
Juniper Junos=12.3-r5
Juniper Junos=12.3-r6
Juniper Junos=12.3-r7
Juniper Junos=12.3-r8
Juniper Junos=12.3-r9
Juniper Junos=14.1x53-d121
Juniper Qfabric
Juniper Junos=16.1x65-d30
Juniper Junos=16.1x65-d35
Juniper Junos=16.1x65-d40
Juniper Junos=16.1x70

Remedy

https://kb.juniper.net/JSA10847

Remedy

The following software releases have been updated to resolve this specific issue:12.3R12-S7, 12.3R13, 12.3X48-D65, 14.1R9, 14.1X53-D130, 15.1F2-S20, 15.1F6-S10, 15.1R7, 15.1X49-D130, 15.1X53-D233, 15.1X53-D471, 15.1X53-D472, 15.1X53-D58, 15.1X53-D66, 16.1R5-S3, 16.1R7, 16.1X65-D47, 16.1X70-D10, 16.2R1-S6, 16.2R2-S5, 16.2R3, 17.1R2-S6, 17.1R3, 17.2R1, and all subsequent releases.

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2018-0019?

    CVE-2018-0019 has a medium severity rating because it may lead to denial of service for the SNMP subsystem.

  • How do I fix CVE-2018-0019?

    To mitigate CVE-2018-0019, upgrade to a non-vulnerable version of Junos OS as advised in security advisories from Juniper.

  • Which versions of Junos OS are affected by CVE-2018-0019?

    CVE-2018-0019 affects several versions of Junos OS, including 15.1x49 and various revisions of 14.1 and 16.1.

  • Can CVE-2018-0019 be exploited remotely?

    Yes, CVE-2018-0019 can be exploited remotely by an attacker to crash the mib2d process.

  • What impact does CVE-2018-0019 have on network operations?

    CVE-2018-0019 can disrupt network monitoring capabilities due to the denial of service condition.

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