Junos OS and Junos OS Evolved: Due to a race condition the rpd process can crash upon receipt of a BGP update message containing flow spec route (Juniper Networks Junos OS)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.53 % · percentile 45 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- juniper
- NVD status
- Modified
Description
A Time-of-check Time-of-use (TOCTOU) Race Condition vulnerability in Routing Protocol Daemon (rpd) of Juniper Networks Junos OS, Junos OS Evolved allows a network-based unauthenticated attacker to cause a Denial of Service (DoS). When a BGP flow route with redirect IP extended community is received, and the reachability to the next-hop of the corresponding redirect IP is flapping, the rpd process might crash. Whether the crash occurs depends on the timing of the internally processing of these two events and is outside the attackers control. Please note that this issue also affects Route-Reflectors unless 'routing-options flow firewall-install-disable' is configured. This issue affects: Juniper Networks Junos OS: 18.4 versions prior to 18.4R2-S10, 18.4R3-S10; 19.1 versions prior to 19.1R3-S7; 19.2 versions prior to 19.2R1-S8, 19.2R3-S4; 19.4 versions prior to 19.4R3-S8; 20.2 versions prior to 20.2R3-S3; 20.3 versions prior to 20.3R3-S2; 20.4 versions prior to 20.4R3; 21.1 versions prior to 21.1R2. Juniper Networks Junos OS Evolved: All versions prior to 20.4R2-EVO; 21.1-EVO versions prior to 21.1R2-EVO. This issue does not affect Juniper Networks Junos OS versions prior to 18.4R1.
Weaknesses (CWE)
- CWE-367 — Time-of-check Time-of-use (TOCTOU) Race Condition
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | MEDIUM 5.9 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H | juniper |
| CVSS 3.1 | MEDIUM 5.9 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H | NVD · sirt@juniper.net (Secondary) |
| CVSS 3.1 | MEDIUM 5.9 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2022-27367
- GCVE · GCVE-0-2022-22220
CERT-FR advisories
- CERTFR-2022-AVI-916 — Multiples vulnérabilités dans les produits Juniper · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:o:juniper:junos:*:*:*:*:*:*:*:*< 18.4cpe:2.3:o:juniper:junos:18.4:-:*:*:*:*:*:*cpe:2.3:o:juniper:junos:18.4:r1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:18.4:r1-s1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:18.4:r1-s2:*:*:*:*:*:*cpe:2.3:o:juniper:junos:18.4:r1-s3:*:*:*:*:*:*cpe:2.3:o:juniper:junos:18.4:r1-s4:*:*:*:*:*:*cpe:2.3:o:juniper:junos:18.4:r1-s5:*:*:*:*:*:*cpe:2.3:o:juniper:junos:18.4:r1-s6:*:*:*:*:*:*cpe:2.3:o:juniper:junos:18.4:r1-s7:*:*:*:*:*:*cpe:2.3:o:juniper:junos:18.4:r2:*:*:*:*:*:*cpe:2.3:o:juniper:junos:18.4:r2-s1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:18.4:r2-s2:*:*:*:*:*:*cpe:2.3:o:juniper:junos:18.4:r2-s3:*:*:*:*:*:*cpe:2.3:o:juniper:junos:18.4:r2-s4:*:*:*:*:*:*cpe:2.3:o:juniper:junos:18.4:r2-s5:*:*:*:*:*:*cpe:2.3:o:juniper:junos:18.4:r2-s6:*:*:*:*:*:*cpe:2.3:o:juniper:junos:18.4:r2-s7:*:*:*:*:*:*cpe:2.3:o:juniper:junos:18.4:r2-s8:*:*:*:*:*:*cpe:2.3:o:juniper:junos:18.4:r2-s9:*:*:*:*:*:*cpe:2.3:o:juniper:junos:18.4:r3-s10:*:*:*:*:*:*cpe:2.3:o:juniper:junos:19.1:-:*:*:*:*:*:*cpe:2.3:o:juniper:junos:19.1:r1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:19.1:r1-s1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:19.1:r1-s2:*:*:*:*:*:*cpe:2.3:o:juniper:junos:19.1:r1-s3:*:*:*:*:*:*cpe:2.3:o:juniper:junos:19.1:r1-s4:*:*:*:*:*:*cpe:2.3:o:juniper:junos:19.1:r1-s5:*:*:*:*:*:*cpe:2.3:o:juniper:junos:19.1:r1-s6:*:*:*:*:*:*cpe:2.3:o:juniper:junos:19.1:r2:*:*:*:*:*:*cpe:2.3:o:juniper:junos:19.1:r2-s1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:19.1:r2-s2:*:*:*:*:*:*cpe:2.3:o:juniper:junos:19.1:r2-s3:*:*:*:*:*:*cpe:2.3:o:juniper:junos:19.1:r3:*:*:*:*:*:*cpe:2.3:o:juniper:junos:19.1:r3-s1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:19.1:r3-s2:*:*:*:*:*:*cpe:2.3:o:juniper:junos:19.1:r3-s3:*:*:*:*:*:*cpe:2.3:o:juniper:junos:19.1:r3-s4:*:*:*:*:*:*cpe:2.3:o:juniper:junos:19.1:r3-s5:*:*:*:*:*:*cpe:2.3:o:juniper:junos:19.1:r3-s6:*:*:*:*:*:*- +52 more
Affected products
| Product | Versions |
|---|---|
| Juniper Networks · Junos OS | unaffected unspecified < 18.4R1 ; affected 18.4 < 18.4R2-S10, 18.4R3-S10 ; affected 19.1 < 19.1R3-S7 ; affected 19.2 < 19.2R1-S8, 19.2R3-S4 ; affected 19.4 < 19.4R3-S8 ; affected 20.2 < 20.2R3-S3 |
| Juniper Networks · Junos OS Evolved | affected unspecified < 20.4R2-EVO ; affected 21.1-EVO < 21.1R2-EVO |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |