high
7.8
CWE
20
Advisory Published
Updated

CVE-2018-0020: Junos OS: rpd daemon cores due to malformed BGP UPDATE packet

First published: Wed Apr 11 2018(Updated: )

Junos OS may be impacted by the receipt of a malformed BGP UPDATE which can lead to a routing process daemon (rpd) crash and restart. Receipt of a repeated malformed BGP UPDATEs can result in an extended denial of service condition for the device. This malformed BGP UPDATE does not propagate to other BGP peers. Affected releases are Juniper Networks Junos OS: 14.1X53 versions prior to 14.1X53-D47; 15.1 versions prior to 15.1F6-S10, 15.1R4-S9, 15.1R6-S6, 15.1R7; 15.1X49 versions prior to 15.1X49-D130 on SRX; 15.1X53 versions prior to 15.1X53-D66 on QFX10K; 15.1X53 versions prior to 15.1X53-D58 on EX2300/EX3400; 15.1X53 versions prior to 15.1X53-D233 on QFX5200/QFX5110; 15.1X53 versions prior to 15.1X53-D471 on NFX; 16.1 versions prior to 16.1R3-S8, 16.1R4-S9, 16.1R5-S3, 16.1R6-S3, 16.1R7; 16.1X65 versions prior to 16.1X65-D47; 16.2 versions prior to 16.2R1-S6, 16.2R2-S5, 16.2R3; 17.1 versions prior to 17.1R2-S3, 17.1R3; 17.2 versions prior to 17.2R1-S3, 17.2R2-S1, 17.2R3; 17.2X75 versions prior to 17.2X75-D70; 13.2 versions above and including 13.2R1. Versions prior to 13.2R1 are not affected. Juniper SIRT is not aware of any malicious exploitation of this vulnerability. No other Juniper Networks products or platforms are affected by this issue.

Credit: sirt@juniper.net

Affected SoftwareAffected VersionHow to fix
Junos OS Evolved=15.1x49
Junos OS Evolved=15.1x49-d10
Junos OS Evolved=15.1x49-d100
Junos OS Evolved=15.1x49-d110
Junos OS Evolved=15.1x49-d120
Junos OS Evolved=15.1x49-d20
Junos OS Evolved=15.1x49-d30
Junos OS Evolved=15.1x49-d35
Junos OS Evolved=15.1x49-d40
Junos OS Evolved=15.1x49-d45
Junos OS Evolved=15.1x49-d50
Junos OS Evolved=15.1x49-d55
Junos OS Evolved=15.1x49-d60
Junos OS Evolved=15.1x49-d65
Junos OS Evolved=15.1x49-d70
Junos OS Evolved=15.1x49-d75
Junos OS Evolved=15.1x49-d80
Junos OS Evolved=15.1x49-d90
Juniper SRX100
Juniper SRX110
Juniper SRX1400
Juniper SRX1500
Juniper SRX210
Juniper SRX220
Juniper SRX240
Juniper SRX300
Juniper SRX320
Juniper SRX340
Juniper SRX3400
Juniper SRX345
Juniper SRX3600
Juniper SRX4100
Juniper SRX4200
Juniper SRX4600
Juniper SRX5400
Juniper SRX550
Juniper SRX5600
Juniper SRX5800
Juniper SRX650
Junos OS Evolved=14.1x53
Junos OS Evolved=14.1x53-d15
Junos OS Evolved=14.1x53-d16
Junos OS Evolved=14.1x53-d25
Junos OS Evolved=14.1x53-d26
Junos OS Evolved=14.1x53-d27
Junos OS Evolved=14.1x53-d30
Junos OS Evolved=14.1x53-d35
Junos OS Evolved=14.1x53-d40
Junos OS Evolved=14.1x53-d42
Junos OS Evolved=14.1x53-d43
Junos OS Evolved=14.1x53-d44
Junos OS Evolved=14.1x53-d45
Junos OS Evolved=14.1x53-d46
Junos OS Evolved=15.1x53
Junos OS Evolved=15.1x53-d10
Junos OS Evolved=15.1x53-d20
Junos OS Evolved=15.1x53-d21
Junos OS Evolved=15.1x53-d30
Junos OS Evolved=15.1x53-d32
Junos OS Evolved=15.1x53-d33
Junos OS Evolved=15.1x53-d34
Junos OS Evolved=15.1x53-d50
Junos OS Evolved=15.1x53-d51
Junos OS Evolved=15.1x53-d52
Junos OS Evolved=15.1x53-d55
Junos OS Evolved=15.1x53-d57
Juniper EX2300-24T
Juniper EX3400
Junos OS Evolved=16.1-r1
Junos OS Evolved=16.1-r2
Junos OS Evolved=16.1-r3
Junos OS Evolved=16.1-r4
Junos OS Evolved=16.1-r5
Junos OS Evolved=16.1-r6
Junos OS Evolved=16.2-r1
Junos OS Evolved=16.2-r2
Junos OS Evolved=16.2-r3
Junos OS Evolved=17.1-r1
Junos OS Evolved=17.1-r2
Junos OS Evolved=17.1-r3
Junos OS Evolved=15.1
Junos OS Evolved=15.1-r1
Junos OS Evolved=15.1-r2
Junos OS Evolved=15.1-r3
Junos OS Evolved=15.1-r4
Junos OS Evolved=15.1-r6
Junos OS Evolved=15.1-f1
Junos OS Evolved=15.1-f2
Junos OS Evolved=15.1-f3
Junos OS Evolved=15.1-f4
Junos OS Evolved=15.1-f6
Junos OS Evolved=15.1x53-d210
Junos OS Evolved=15.1x53-d230
Junos OS Evolved=15.1x53-d231
Junos OS Evolved=15.1x53-d232
Junos OS Evolved=15.1x53-d58
Junos OS Evolved=15.1x53-d60
Junos OS Evolved=15.1x53-d61
Junos OS Evolved=15.1x53-d62
Junos OS Evolved=15.1x53-d63
Junos OS Evolved=15.1x53-d64
Junos OS Evolved=15.1x53-d65
Junos OS Evolved=15.1x53-d66
Juniper QFX5110
Juniper QFX5200-32C
Junos OS Evolved=15.1x53-d233
Junos OS Evolved=15.1x53-d470
Juniper NFX
Juniper NFX
Junos OS Evolved=17.2-r1
Junos OS Evolved=17.2-r2
Junos OS Evolved=17.2-r3
Junos OS Evolved=16.1x65-d30
Junos OS Evolved=16.1x65-d35
Junos OS Evolved=16.1x65-d40
Juniper QFX10000
Junos OS Evolved=17.2x75

Remedy

The following software releases have been updated to resolve this specific issue: 14.1X53-D47, 15.1F6-S10, 15.1R4-S9, 15.1R6-S6, 15.1R7, 15.1X49-D130, 15.1X53-D233, 15.1X53-D471, 15.1X53-D58, 15.1X53-D66, 16.1R3-S8, 16.1R4-S9, 16.1R5-S3, 16.1R6-S3, 16.1R7, 16.1X65-D47, 16.2R1-S6, 16.2R2-S5, 16.2R3, 17.1R2-S3, 17.1R3, 17.2R1-S3, 17.2R2-S1, 17.2R3, 17.2X75-D70, 17.3R1 and all subsequent releases.

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2018-0020?

    CVE-2018-0020 is classified as a medium severity vulnerability due to its potential to cause a denial of service.

  • How do I fix CVE-2018-0020?

    To mitigate CVE-2018-0020, you should upgrade to the latest version of Junos OS provided by Juniper Networks and apply relevant patches.

  • What are the affected software versions for CVE-2018-0020?

    CVE-2018-0020 affects various versions of Junos OS including 15.1x49 and 14.1x53.

  • What impact does CVE-2018-0020 have on network devices?

    CVE-2018-0020 can lead to the crash and restart of the routing process daemon, causing a denial of service.

  • Is my device vulnerable to CVE-2018-0020?

    Devices running specific versions of Junos OS such as 15.1x49 and 14.1x53 may be vulnerable to CVE-2018-0020.

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