Vulnerability in Juniper Junos
CVE-2017-2346
An MS-MPC or MS-MIC Service PIC may crash when large fragmented packets are passed through an Application Layer Gateway (ALG). Repeated crashes of the Service PC can result in an extended denial of service condition. The issue can be seen only if NAT or stateful-firewall rules are configured with ALGs enabled. This issue was caused by the code change for PR 1182910 in Junos OS 14.1X55-D30, 14.1X55-D35, 14.2R7, 15.1R5, and 16.1R2. No other versions of Junos OS and no other Juniper Networks products or platforms are affected by this issue. Affected releases are Juniper Networks Junos OS on MX platforms running: 14.1X55 from 14.1X55-D30 to releases prior to 14.1X55-D35; 14.2R from 14.2R7 to releases prior to 14.2R7-S4, 14.2R8; 15.1R from 15.1R5 to releases prior to 15.1R5-S2, 15.1R6; 16.1R from 16.1R2 to releases prior to 16.1R3-S2, 16.1R4.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.011 (65.7th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 66th percentile — 65.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: 0.000
Affected products
- Juniper Junos — versions 14.1x55, 14.2, 15.1
- Juniper Mx
- Juniper Networks Junos OS — versions 14.1X55 from 14.1X55-D30 prior to 14.1X55-D35, 16.1R from 16.1R2 prior to 16.1R3-S2, 16.1R4, 15.1R from 15.1R5 prior to 15.1R5-S2, 15.1R6
References
- www.securitytracker.com/id/1038895 (VDB Entry, Third Party Advisory, vdb-entry)
- kb.juniper.net/JSA10794 (Vendor Advisory)
Frequently asked questions
- What is CVE-2017-2346?
- CVE-2017-2346 is a medium-severity vulnerability in Juniper Junos. CVSS score: 5.9/10. Published 2017-07-17.
- How severe is CVE-2017-2346?
- Medium severity. CVSS v3 base score is 5.9 out of 10.