CVE-2017-10618
Junos: RPD core due to BGP UPDATE with malformed optional transitive attributes
- Published
- Updated
- Reserved
- Assigned by
- juniper
Description
When the 'bgp-error-tolerance' feature â€" designed to help mitigate remote session resets from malformed path attributes â€" is enabled, a BGP UPDATE containing a specifically crafted set of transitive attributes can cause the RPD routing process to crash and restart. Devices with BGP enabled that do not have 'bgp-error-tolerance' configured are not vulnerable to this issue. Affected releases are Juniper Networks Junos OS 13.3 prior to 13.3R10-S2; 14.1 prior to 14.1R8-S4, 14.1R9; 14.1X50 prior to 14.1X50-D185; 14.1X53 prior to 14.1X53-D45, 14.1X53-D50; 14.2 prior to 14.2R7-S7, 14.2R8; 15.1 prior to 15.1F5-S8, 15.1F6-S7, 15.1R5-S6, 15.1R6-S2, 15.1R7; 15.1X49 prior to 15.1X49-D100; 15.1X53 prior to 15.1X53-D64, 15.1X53-D70; 16.1 prior to 16.1R3-S4, 16.1R4-S3, 16.1R5; 16.2 prior to 16.2R1-S5, 16.2R2; 17.1 prior to 17.1R1-S3, 17.1R2; 17.2 prior to 17.2R1-S2, 17.2R2; 17.2X75 prior to 17.2X75-D50. No other Juniper Networks products or platforms are affected by this issue.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| juniperCNA (assigner) | 3.0 | Medium5.9 | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H |
| NVDNVD · Modified | 3.0 | Medium5.9 | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 1.5% · top 25% of all CVEs (5 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.9.
Weakness
- Denial of service
Affected products
- affected 13.3 prior to 13.3R10-S2
- affected 14.1 prior to 14.1R8-S4, 14.1R9
- affected 14.1X50 prior to 14.1X50-D185
- affected 14.1X53 prior to 14.1X53-D45, 14.1X53-D50
- affected 14.2 prior to 14.2R7-S7, 14.2R8
- affected 15.1 prior to 15.1F5-S8, 15.1F6-S7, 15.1R5-S6, 15.1R6-S2, 15.1R7
- affected 15.1X49 prior to 15.1X49-D100
- affected 15.1X53 prior to 15.1X53-D64, 15.1X53-D70
- affected 16.1 prior to 16.1R3-S4, 16.1R4-S3, 16.1R5
- affected 16.2 prior to 16.2R1-S5, 16.2R2
- affected 17.1 prior to 17.1R1-S3, 17.1R2
- affected 17.2 prior to 17.2R1-S2, 17.2R2
- affected 17.2X75 prior to 17.2X75-D50
What to do
Workaround: If 'bgp-error-tolerance' is enabled, disabling this option under 'protocols bgp' will mitigate this issue. Note that when the error handling feature is off, the router is vulnerable to session resets from malformed path attributes. However, this is RFC 4271 compliant behavior.
References (3)
- https://www.juniper.net/documentation/en_US/junos/topics/concept/bgp-error-handling-overview.html (opens in a new tab)x_refsource_MISCx_transferred
- https://kb.juniper.net/JSA10820 (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://www.juniper.net/documentation/en_US/junos/topics/reference/configuration-statement/bgp-error-tolerance.html (opens in a new tab)x_refsource_MISCx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2017-10618)Record last updated .