MS-MPC or MS-MIC crash when passing large fragmented traffic through an ALG (Juniper Networks Junos OS)

CVE-2017-2346
MEDIUM 5.9

At a glance

Source
NVD
EPSS
EPSS 1.10 % · percentile 66 ()
State
PUBLISHED
Published
Updated
Assigner
juniper
NVD status
Modified

Description

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.

References

Scores

VersionScoreVectorScored by
CVSS 3.0MEDIUM 5.9CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:Hjuniper
CVSS 3.0MEDIUM 5.9CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:HNVD · sirt@juniper.net (Secondary)
CVSS 3.0MEDIUM 5.9CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:HNVD · nvd@nist.gov (Primary)
CVSS 2.0MEDIUM 4.3AV:N/AC:M/Au:N/C:N/I:N/A:PNVD · nvd@nist.gov (Primary)

European references

CERT-FR advisories

Affected configurations (NVD CPE)

Affected products

ProductVersions
Juniper Networks · Junos OSaffected 14.1X55 from 14.1X55-D30 prior to 14.1X55-D35 ; affected 14.2R from 14.2R7 prior to 14.2R7-S4, 14.2R8 ; affected 15.1R from 15.1R5 prior to 15.1R5-S2, 15.1R6 ; affected 16.1R from 16.1R2 prior to 16.1R3-S2, 16.1R4

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD