Vulnerability in Juniper Csrx
CVE-2023-36831
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.
EPSS: 0.006 (48.6th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
Weakness classification (CWE)
References
- sirt@juniper.net (Vendor Advisory)
Frequently asked questions
- What is CVE-2023-36831?
- CVE-2023-36831 is a high-severity vulnerability in Juniper Csrx, classified under CWE-703. CVSS score: 7.5/10. Published 2023-07-14.
- How severe is CVE-2023-36831?
- High severity. CVSS v3 base score is 7.5 out of 10.