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.
Published 2017-10-13 17:29:01
Updated 2019-10-09 23:21:40
View at NVD,   CVE.org
Vulnerability category: Denial of service

Products affected by CVE-2017-10611

Exploit prediction scoring system (EPSS) score for CVE-2017-10611

0.12%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 46 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2017-10611

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
4.3
MEDIUM AV:N/AC:M/Au:N/C:N/I:N/A:P
8.6
2.9
NIST
5.9
MEDIUM CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
2.2
3.6
NIST
6.5
MEDIUM CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
2.8
3.6
Juniper Networks, Inc.

References for CVE-2017-10611

  • https://kb.juniper.net/JSA10814
    Juniper Networks - 2017-10 Security Bulletin: Junos: EX Series PFE and MX MPC7E/8E/9E PFE crash when fetching interface stats with 'extended-statistics' enabled (CVE-2017-10611)
    Vendor Advisory
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