First published: Mon Apr 17 2023(Updated: )
An Improper Check or Handling of Exceptional Conditions vulnerability in packet processing on the network interfaces of Juniper Networks Junos OS on JRR200 route reflector appliances allows an adjacent, network-based attacker sending a specific packet to the device to cause a kernel crash, resulting in a Denial of Service (DoS). Continued receipt and processing of this packet will create a sustained Denial of Service (DoS) condition. This issue can only be triggered by an attacker on the local broadcast domain. Packets routed to the device are unable to trigger this crash. This issue affects Juniper Networks Junos OS on JRR200: All versions prior to 21.2R3-S4; 21.3 versions prior to 21.3R3-S4; 21.4 versions prior to 21.4R3-S3; 22.1 versions prior to 22.1R3-S1; 22.2 versions prior to 22.2R2-S2, 22.2R3; 22.3 versions prior to 22.3R1-S2, 22.3R2; 22.4 versions prior to 22.4R1-S1, 22.4R2.
Credit: sirt@juniper.net
Affected Software | Affected Version | How to fix |
---|---|---|
Juniper JUNOS | <21.2 | |
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 | |
Juniper JUNOS | =21.2-r3-s3 | |
Juniper JUNOS | =21.3 | |
Juniper JUNOS | =21.3-r1 | |
Juniper JUNOS | =21.3-r1-s1 | |
Juniper JUNOS | =21.3-r1-s2 | |
Juniper JUNOS | =21.3-r2 | |
Juniper JUNOS | =21.3-r2-s1 | |
Juniper JUNOS | =21.3-r2-s2 | |
Juniper JUNOS | =21.3-r3 | |
Juniper JUNOS | =21.3-r3-s1 | |
Juniper JUNOS | =21.3-r3-s2 | |
Juniper JUNOS | =21.3-r3-s3 | |
Juniper JUNOS | =21.4 | |
Juniper JUNOS | =21.4-r1 | |
Juniper JUNOS | =21.4-r1-s1 | |
Juniper JUNOS | =21.4-r1-s2 | |
Juniper JUNOS | =21.4-r2 | |
Juniper JUNOS | =21.4-r2-s1 | |
Juniper JUNOS | =21.4-r2-s2 | |
Juniper JUNOS | =21.4-r3 | |
Juniper JUNOS | =21.4-r3-s1 | |
Juniper JUNOS | =21.4-r3-s2 | |
Juniper JUNOS | =22.1-r1 | |
Juniper JUNOS | =22.1-r1-s1 | |
Juniper JUNOS | =22.1-r1-s2 | |
Juniper JUNOS | =22.1-r2 | |
Juniper JUNOS | =22.1-r2-s1 | |
Juniper JUNOS | =22.1-r2-s2 | |
Juniper JUNOS | =22.1-r3 | |
Juniper JUNOS | =22.2-r1 | |
Juniper JUNOS | =22.2-r1-s1 | |
Juniper JUNOS | =22.2-r1-s2 | |
Juniper JUNOS | =22.2-r2 | |
Juniper JUNOS | =22.2-r2-s1 | |
Juniper JUNOS | =22.3-r1 | |
Juniper JUNOS | =22.3-r1-s1 | |
Juniper JUNOS | =22.4-r1 | |
Juniper Jrr200 |
The following software releases have been updated to resolve this specific issue: Junos OS 21.2R3-S4, 21.4R3-S3, 22.1R3-S1, 22.2R2-S2, 22.2R3, 22.3R1-S2, 22.3R2, 22.4R1-S1, 22.4R2, 23.1R1, and all subsequent releases.
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CVE-2023-28970 is an Improper Check or Handling of Exceptional Conditions vulnerability in packet processing on the network interfaces of Juniper Networks Junos OS.
CVE-2023-28970 affects Juniper JUNOS versions up to 21.2.
An attacker can exploit CVE-2023-28970 by sending a specific packet to the device, causing a kernel crash.
CVE-2023-28970 has a severity rating of 6.5 (medium).
To fix CVE-2023-28970, update Juniper JUNOS to version 21.3 or later.