Junos: EX Series PFE and MX MPC7E/8E/9E PFE crash when fetching interface stats with 'extended-statistics' enabled
Published Oct 13, 2017
6.5
MEDIUMCVSS 3.0
EPSS 0.88%
Description
If extended statistics are enabled via 'set chassis extended-statistics', when executing any operation that fetches interface statistics, including but not limited to SNMP GET requests, the pfem process or the FPC may crash and restart. Repeated crashes of PFE processing can result in an extended denial of service condition. This issue only affects the following platforms: (1) EX2200, EX3300, XRE200 (2) MX Series routers with MPC7E/8E/9E PFEs installed, and only if 'extended-statistics' are enabled under the [edit chassis] configuration. Affected releases are Juniper Networks Junos OS 14.1 prior to 14.1R8-S5, 14.1R9 on MX Series; 14.1X53 prior to 14.1X53-D46, 14.1X53-D50 on EX2200, EX3300, XRE200; 14.2 prior to 14.2R7-S9, 14.2R8 on MX Series; 15.1 prior to 15.1F5-S8, 15.1F6-S8, 15.1R5-S3, 15.1R6 on MX Series; 16.1 prior to 16.1R4-S5, 16.1R5, 16.1R6 on MX Series; 16.1X65 prior to 16.1X65-D45 on EX2200, EX3300, XRE200; 16.2 prior to 16.2R2-S1, 16.2R3 on MX Series; 17.1 prior to 17.1R2-S2, 17.1R3 on MX Series; 17.2 prior to 17.2R1-S3, 17.2R2 on MX Series; 17.2X75 prior to 17.2X75-D50 on MX Series; 17.3 prior to 17.3R1-S1, 17.3R2 on MX Series. No other Juniper Networks products or platforms are affected by this issue.
Affected products
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- Version 14.1 prior to 14.1R8-S5, 14.1R9StatusaffectedConstraints-
- Version 14.1X53 prior to 14.1X53-D46, 14.1X53-D50StatusaffectedConstraints-
- Version 14.2 prior to 14.2R7-S9, 14.2R8StatusaffectedConstraints-
- Version 15.1 prior to 15.1F5-S8, 15.1F6-S8, 15.1R5-S3, 15.1R6StatusaffectedConstraints-
- Version 16.1 prior to 16.1R4-S5, 16.1R5, 16.1R6StatusaffectedConstraints-
- Version 16.1X65 prior to 16.1X65-D45StatusaffectedConstraints-
- Version 16.2 prior to 16.2R2-S1, 16.2R3StatusaffectedConstraints-
- Version 17.1 prior to 17.1R2-S2, 17.1R3StatusaffectedConstraints-
- Version 17.2 prior to 17.2R1-S3, 17.2R2StatusaffectedConstraints-
- Version 17.2X75 prior to 17.2X75-D50StatusaffectedConstraints-
- Version 17.3 prior to 17.3R1-S1, 17.3R2StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Juniper Networks | Junos OS | n/a |
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Configuration 1
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Configuration 2
- 14.1x53
- 14.1x53
- 14.1x53
- 14.1x53
- 14.1x53
- 14.1x53
- 14.1x53
- 14.1x53
- 14.1x53
- 14.1x53
- 14.1x53
- 14.1x53
Configuration 3
Configuration 4
- 15.1
- 15.1
- 15.1
- 15.1
- 15.1
- 15.1
- 15.1
- 15.1
- 15.1
- 15.1
- 15.1
- 15.1
- 15.1
- 15.1
- 15.1
- 15.1
- 15.1
Configuration 5
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Configuration 6
Configuration 7
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Configuration 8
Running on/with
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Configuration 9
Running on/with
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Configuration 10
Running on/with
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Configuration 11
Running on/with
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No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
Vendor solution
Disable chassis extended-statistics.
Use access lists or firewall filters to limit access to the router via SNMP or CLI only from trusted hosts and administrators.
No CWE recorded.
References (2)
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2017-2258 Advisory
- https://kb.juniper.net/JSA10814 x_refsource_CONFIRMVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| https://euvd.enisa.europa.eu/vulnerability/EUVD-2017-2258 | Advisory | |
| https://kb.juniper.net/JSA10814 | x_refsource_CONFIRMVendor Advisory |
Change history (0)
No recorded changes yet.