CVEvulnerability
CVE-2023-36831
7.5 HIGH
Official page ↗
- Status
- Modified
- Published
- 2023-07-14
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-703
Description
An Improper Check or Handling of Exceptional Conditions vulnerability in the UTM (Unified Threat Management) Web-Filtering feature of Juniper Networks Junos OS on SRX Series causes a jbuf memory leak to occur when accessing certain websites, eventually leading to a Denial of Service (DoS) condition. Service restoration is only possible by rebooting the system.
The jbuf memory leak only occurs in SSL Proxy and UTM Web-Filtering configurations. Other products, platforms, and configurations are not affected by this vulnerability.
This issue affects Juniper Networks Junos OS on SRX Series:
22.2 versions prior to 22.2R3;
22.3 versions prior to 22.3R2-S1, 22.3R3;
22.4 versions prior to 22.4R1-S2, 22.4R2.
This issue does not affect Juniper Networks Junos OS versions prior to 22.2R2.
Affected configurations
• juniper junos 22.2
• juniper junos 22.3
• juniper junos 22.4
Related
Weakness · CWE (1)
- CWE-703 Improper Check or Handling of Exceptional Conditions weakness
References
- https://supportportal.juniper.net/JSA71636 Vendor Advisory
- https://supportportal.juniper.net/JSA71636 Vendor Advisory