CVE-2023-22391: Junos OS: ACX2K Series: Receipt of a high rate of specific traffic will lead to a Denial of Service (DoS)
First published: Thu Jan 12 2023(Updated: )
A vulnerability in class-of-service (CoS) queue management in Juniper Networks Junos OS on the ACX2K Series devices allows an unauthenticated network-based attacker to cause a Denial of Service (DoS). Specific packets are being incorrectly routed to a queue used for other high-priority traffic such as BGP, PIM, ICMP, ICMPV6 ND and ISAKMP. Due to this misclassification of traffic, receipt of a high rate of these specific packets will cause delays in the processing of other traffic, leading to a Denial of Service (DoS). Continued receipt of this amount of traffic will create a sustained Denial of Service (DoS) condition. This issue affects Juniper Networks Junos OS on ACX2K Series: All versions prior to 19.4R3-S9; All 20.2 versions; 20.3 versions prior to 20.3R3-S6 on ACX2K Series; 20.4 versions prior to 20.4R3-S4 on ACX2K Series; All 21.1 versions; 21.2 versions prior to 21.2R3-S3 on ACX2K Series. Note: This issues affects legacy ACX2K Series PPC-based devices. This platform reached Last Supported Version (LSV) as of the Junos OS 21.2 Release.
Credit: sirt@juniper.net
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Juniper JUNOS | <19.4 | |
| Juniper JUNOS | =19.4 | |
| Juniper JUNOS | =19.4-r1 | |
| Juniper JUNOS | =19.4-r1-s1 | |
| Juniper JUNOS | =19.4-r1-s2 | |
| Juniper JUNOS | =19.4-r1-s3 | |
| Juniper JUNOS | =19.4-r1-s4 | |
| Juniper JUNOS | =19.4-r2 | |
| Juniper JUNOS | =19.4-r2-s1 | |
| Juniper JUNOS | =19.4-r2-s2 | |
| Juniper JUNOS | =19.4-r2-s3 | |
| Juniper JUNOS | =19.4-r2-s4 | |
| Juniper JUNOS | =19.4-r2-s5 | |
| Juniper JUNOS | =19.4-r3-s7 | |
| Juniper JUNOS | =19.4-r3-s8 | |
| Juniper JUNOS | =20.2 | |
| Juniper JUNOS | =20.2-r1 | |
| Juniper JUNOS | =20.2-r1-s1 | |
| Juniper JUNOS | =20.2-r1-s2 | |
| Juniper JUNOS | =20.2-r1-s3 | |
| Juniper JUNOS | =20.2-r2 | |
| Juniper JUNOS | =20.2-r2-s1 | |
| Juniper JUNOS | =20.2-r2-s2 | |
| Juniper JUNOS | =20.2-r2-s3 | |
| Juniper JUNOS | =20.2-r3 | |
| Juniper JUNOS | =20.2-r3-s1 | |
| Juniper JUNOS | =20.2-r3-s2 | |
| Juniper JUNOS | =20.2-r3-s3 | |
| Juniper JUNOS | =20.2-r3-s4 | |
| Juniper JUNOS | =20.2-r3-s5 | |
| Juniper JUNOS | =20.2-r3-s6 | |
| Juniper JUNOS | =20.3 | |
| Juniper JUNOS | =20.3-r1 | |
| Juniper JUNOS | =20.3-r1-s1 | |
| Juniper JUNOS | =20.3-r1-s2 | |
| Juniper JUNOS | =20.3-r2 | |
| Juniper JUNOS | =20.3-r2-s1 | |
| Juniper JUNOS | =20.3-r3 | |
| Juniper JUNOS | =20.3-r3-s1 | |
| Juniper JUNOS | =20.3-r3-s2 | |
| Juniper JUNOS | =20.3-r3-s3 | |
| Juniper JUNOS | =20.3-r3-s4 | |
| Juniper JUNOS | =20.3-r3-s5 | |
| Juniper JUNOS | =20.4 | |
| Juniper JUNOS | =20.4-r1 | |
| Juniper JUNOS | =20.4-r1-s1 | |
| Juniper JUNOS | =20.4-r2 | |
| Juniper JUNOS | =20.4-r2-s1 | |
| Juniper JUNOS | =20.4-r2-s2 | |
| Juniper JUNOS | =20.4-r3 | |
| Juniper JUNOS | =20.4-r3-s1 | |
| Juniper JUNOS | =20.4-r3-s2 | |
| Juniper JUNOS | =20.4-r3-s3 | |
| Juniper JUNOS | =21.1 | |
| Juniper JUNOS | =21.1-r1 | |
| Juniper JUNOS | =21.1-r1-s1 | |
| Juniper JUNOS | =21.1-r2 | |
| Juniper JUNOS | =21.1-r2-s1 | |
| Juniper JUNOS | =21.1-r2-s2 | |
| Juniper JUNOS | =21.1-r3 | |
| Juniper JUNOS | =21.1-r3-s1 | |
| Juniper JUNOS | =21.1-r3-s2 | |
| Juniper JUNOS | =21.1-r3-s4 | |
| Juniper JUNOS | =21.2 | |
| Juniper JUNOS | =21.2-r1 | |
| Juniper JUNOS | =21.2-r1-s1 | |
| Juniper JUNOS | =21.2-r1-s2 | |
| Juniper JUNOS | =21.2-r2 | |
| Juniper JUNOS | =21.2-r2-s1 | |
| Juniper JUNOS | =21.2-r2-s2 | |
| Juniper JUNOS | =21.2-r3 | |
| Juniper JUNOS | =21.2-r3-s1 | |
| Juniper JUNOS | =21.2-r3-s2 |
Remedy
The following software releases have been updated to resolve this specific issue: Junos OS 19.4R3-S9, 20.3R3-S6, 20.4R3-S4, and 21.2R3-S3. Note: Legacy ACX2000 Series PPC-based devices have reached Last Supported Version (LSV) as of Junos OS 21.2.
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Reference Links
- collector/nvd-index
- agent/type
- agent/softwarecombine
- collector/mitre-cve
- source/MITRE
- agent/severity
- agent/remedy
- agent/title
- agent/last-modified-date
- agent/references
- agent/tags
- agent/weakness
- agent/author
- agent/description
- agent/first-publish-date
- agent/event
- vendor/juniper
- canonical/juniper junos
- version/juniper junos/19.4
- version/juniper junos/19.4-r1
- version/juniper junos/19.4-r1-s1
- version/juniper junos/19.4-r1-s2
- version/juniper junos/19.4-r1-s3
- version/juniper junos/19.4-r1-s4
- version/juniper junos/19.4-r2
- version/juniper junos/19.4-r2-s1
- version/juniper junos/19.4-r2-s2
- version/juniper junos/19.4-r2-s3
- version/juniper junos/19.4-r2-s4
- version/juniper junos/19.4-r2-s5
- version/juniper junos/19.4-r3-s7
- version/juniper junos/19.4-r3-s8
- version/juniper junos/20.2
- version/juniper junos/20.2-r1
- version/juniper junos/20.2-r1-s1
- version/juniper junos/20.2-r1-s2
- version/juniper junos/20.2-r1-s3
- version/juniper junos/20.2-r2
- version/juniper junos/20.2-r2-s1
- version/juniper junos/20.2-r2-s2
- version/juniper junos/20.2-r2-s3
- version/juniper junos/20.2-r3
- version/juniper junos/20.2-r3-s1
- version/juniper junos/20.2-r3-s2
- version/juniper junos/20.2-r3-s3
- version/juniper junos/20.2-r3-s4
- version/juniper junos/20.2-r3-s5
- version/juniper junos/20.2-r3-s6
- version/juniper junos/20.3
- version/juniper junos/20.3-r1
- version/juniper junos/20.3-r1-s1
- version/juniper junos/20.3-r1-s2
- version/juniper junos/20.3-r2
- version/juniper junos/20.3-r2-s1
- version/juniper junos/20.3-r3
- version/juniper junos/20.3-r3-s1
- version/juniper junos/20.3-r3-s2
- version/juniper junos/20.3-r3-s3
- version/juniper junos/20.3-r3-s4
- version/juniper junos/20.3-r3-s5
- version/juniper junos/20.4
- version/juniper junos/20.4-r1
- version/juniper junos/20.4-r1-s1
- version/juniper junos/20.4-r2
- version/juniper junos/20.4-r2-s1
- version/juniper junos/20.4-r2-s2
- version/juniper junos/20.4-r3
- version/juniper junos/20.4-r3-s1
- version/juniper junos/20.4-r3-s2
- version/juniper junos/20.4-r3-s3
- version/juniper junos/21.1
- version/juniper junos/21.1-r1
- version/juniper junos/21.1-r1-s1
- version/juniper junos/21.1-r2
- version/juniper junos/21.1-r2-s1
- version/juniper junos/21.1-r2-s2
- version/juniper junos/21.1-r3
- version/juniper junos/21.1-r3-s1
- version/juniper junos/21.1-r3-s2
- version/juniper junos/21.1-r3-s4
- version/juniper junos/21.2
- version/juniper junos/21.2-r1
- version/juniper junos/21.2-r1-s1
- version/juniper junos/21.2-r1-s2
- version/juniper junos/21.2-r2
- version/juniper junos/21.2-r2-s1
- version/juniper junos/21.2-r2-s2
- version/juniper junos/21.2-r3
- version/juniper junos/21.2-r3-s1
- version/juniper junos/21.2-r3-s2