Junos OS and Junos OS Evolved: MX Series with MPC10/MPC11, PTX10003, PTX10008: Line card may crash and restart when traffic is hitting a firewall filter having a term with syslog action configured (Juniper Networks Junos OS)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.98 % · percentile 62 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- juniper
- NVD status
- Modified
Description
A vulnerability in the processing of traffic matching a firewall filter containing a syslog action in Juniper Networks Junos OS on MX Series with MPC10/MPC11 cards installed, PTX10003 and PTX10008 Series devices, will cause the line card to crash and restart, creating a Denial of Service (DoS). Continued receipt and processing of packets matching the firewall filter can create a sustained Denial of Service (DoS) condition. When traffic hits the firewall filter, configured on lo0 or any physical interface on the line card, containing a term with a syslog action (e.g. 'term <name> then syslog'), the affected line card will crash and restart, impacting traffic processing through the ports of the line card. This issue only affects MX Series routers with MPC10 or MPC11 line cards, and PTX10003 or PTX10008 Series packet transport routers. No other platforms or models of line cards are affected by this issue. Note: This issue has also been identified and described in technical service bulletin TSB17931 (login required). This issue affects: Juniper Networks Junos OS on MX Series: 19.3 versions prior to 19.3R3-S2; 19.4 versions prior to 19.4R3-S2; 20.1 versions prior to 20.1R3; 20.2 versions prior to 20.2R2-S2, 20.2R3; 20.3 versions prior to 20.3R3; 20.4 versions prior to 20.4R2. Juniper Networks Junos OS Evolved on PTX10003, PTX10008: All versions prior to 20.4R2-EVO. This issue does not affect Juniper Networks Junos OS versions prior to 19.3R1.
Weaknesses (CWE)
- CWE-703 — Improper Check or Handling of Exceptional Conditions
- CWE-755 — Improper Handling of Exceptional Conditions
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 | HIGH 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | NVD · nvd@nist.gov (Primary) |
| CVSS 2.0 | MEDIUM 5.0 | AV:N/AC:L/Au:N/C:N/I:N/A:P | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2021-2883
- GCVE · GCVE-0-2021-0264
CERT-FR advisories
- CERTFR-2021-AVI-290 — Multiples vulnérabilités dans les produits Juniper · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:o:juniper:junos:19.3:-:*:*:*:*:*:*cpe:2.3:o:juniper:junos:19.3:r1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:19.3:r1-s1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:19.3:r2:*:*:*:*:*:*cpe:2.3:o:juniper:junos:19.3:r2-s1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:19.3:r2-s2:*:*:*:*:*:*cpe:2.3:o:juniper:junos:19.3:r2-s3:*:*:*:*:*:*cpe:2.3:o:juniper:junos:19.3:r2-s4:*:*:*:*:*:*cpe:2.3:o:juniper:junos:19.3:r2-s5:*:*:*:*:*:*cpe:2.3:o:juniper:junos:19.3:r3:*:*:*:*:*:*cpe:2.3:o:juniper:junos:19.4:r1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:19.4:r1-s1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:19.4:r1-s2:*:*:*:*:*:*cpe:2.3:o:juniper:junos:19.4:r2:*:*:*:*:*:*cpe:2.3:o:juniper:junos:19.4:r2-s1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:19.4:r2-s2:*:*:*:*:*:*cpe:2.3:o:juniper:junos:19.4:r3:*:*:*:*:*:*cpe:2.3:o:juniper:junos:19.4:r3-s1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:20.1:r1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:20.1:r1-s1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:20.1:r1-s2:*:*:*:*:*:*cpe:2.3:o:juniper:junos:20.1:r1-s3:*:*:*:*:*:*cpe:2.3:o:juniper:junos:20.1:r1-s4:*:*:*:*:*:*cpe:2.3:o:juniper:junos:20.1:r2:*:*:*:*:*:*cpe:2.3:o:juniper:junos:20.1:r2-s1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:20.2:r1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:20.2:r1-s1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:20.2:r1-s2:*:*:*:*:*:*cpe:2.3:o:juniper:junos:20.2:r1-s3:*:*:*:*:*:*cpe:2.3:o:juniper:junos:20.2:r2:*:*:*:*:*:*cpe:2.3:o:juniper:junos:20.2:r2-s1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:20.3:r1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:20.3:r2:*:*:*:*:*:*cpe:2.3:o:juniper:junos:20.4:r1:*:*:*:*:*:*cpe:2.3:o:juniper:junos_os_evolved:18.3:r1:*:*:*:*:*:*cpe:2.3:o:juniper:junos_os_evolved:19.1:r1:*:*:*:*:*:*cpe:2.3:o:juniper:junos_os_evolved:19.1:r2:*:*:*:*:*:*cpe:2.3:o:juniper:junos_os_evolved:19.2:r1:*:*:*:*:*:*cpe:2.3:o:juniper:junos_os_evolved:19.2:r2:*:*:*:*:*:*cpe:2.3:o:juniper:junos_os_evolved:19.3:r1:*:*:*:*:*:*- +8 more
Affected products
| Product | Versions |
|---|---|
| Juniper Networks · Junos OS | unaffected unspecified < 19.3R1 |
| Juniper Networks · Junos OS | affected 19.3 < 19.3R3-S2 ; affected 19.4 < 19.4R3-S2 ; affected 20.1 < 20.1R3 ; affected 20.2 < 20.2R2-S2, 20.2R3 ; affected 20.3 < 20.3R3 ; affected 20.4 < 20.4R2 |
| Juniper Networks · Junos OS Evolved | affected unspecified < 20.4R2-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 |