CVE-2023-36843
published 2023-10-12CVE-2023-36843: An Improper Handling of Inconsistent Special Elements vulnerability in the Junos Services Framework (jsf) module of Juniper Networks Junos OS allows an…
high7.5CVSS 3.1
AVNACLPRNUINSUCNINAH
An Improper Handling of Inconsistent Special Elements vulnerability in the Junos Services Framework (jsf) module of Juniper Networks Junos OS allows an unauthenticated network based attacker to cause a crash in the Packet Forwarding Engine (pfe) and thereby resulting in a Denial of Service (DoS).
Upon receiving malformed SSL traffic, the PFE crashes. A manual restart will be needed to recover the device.
This issue only affects devices with Juniper Networks Advanced Threat Prevention (ATP) Cloud enabled with Encrypted Traffic Insights (configured via ‘security-metadata-streaming policy’).
This issue affects Juniper Networks Junos OS:
* All versions prior to 20.4R3-S8, 20.4R3-S9;
* 21.1 version 21.1R1 and later versions;
* 21.2 versions prior to 21.2R3-S6;
* 21.3 versions prior to 21.3R3-S5;
* 21.4 versions prior to 21.4R3-S5;
* 22.1 versions prior to 22.1R3-S4;
* 22.2 versions prior to 22.2R3-S2;
* 22.3 versions prior to 22.3R2-S2, 22.3R3;
* 22.4 versions prior to 22.4R2-S1, 22.4R3;
Affected
20 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| juniper | junos | < 20.4 | 20.4 |
| juniper | junos | — | — |
| juniper | junos | — | — |
| juniper | junos | — | — |
| juniper | junos | — | — |
| juniper | junos | — | — |
| juniper | junos | — | — |
| juniper | junos | — | — |
| juniper | junos | — | — |
| juniper | junos | — | — |
| juniper | junos_os | — | — |
| juniper_networks | junos_os | < 20.4R3-S8 | 20.4R3-S8 |
| juniper_networks | junos_os | >= 21.1R1 < 21.1* | 21.1* |
| juniper_networks | junos_os | >= 21.2 < 21.2R3-S6 | 21.2R3-S6 |
| juniper_networks | junos_os | >= 21.3 < 21.3R3-S5 | 21.3R3-S5 |
| juniper_networks | junos_os | >= 21.4 < 21.4R3-S5 | 21.4R3-S5 |
| juniper_networks | junos_os | >= 22.1 < 22.1R3-S4 | 22.1R3-S4 |
| juniper_networks | junos_os | >= 22.2 < 22.2R3-S2 | 22.2R3-S2 |
| juniper_networks | junos_os | >= 22.3 < 22.3R2-S2, 22.3R3 | 22.3R2-S2, 22.3R3 |
| juniper_networks | junos_os | >= 22.4 < 22.4R2-S1, 22.4R3 | 22.4R2-S1, 22.4R3 |