Juniper Junos OS prior 22.2R3/22.3R2-S1/22.3R3/22.4R1-S2/22.4R2 on SRX SSL Proxy/UTM Web-Filtering denial of service

CVSS Meta Temp Score
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CTI Interest Score
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7.3$0-$5k0.00

Summaryinfo

A vulnerability labeled as problematic has been found in Juniper Junos OS on SRX. The affected element is an unknown function of the component SSL Proxy/UTM Web-Filtering. The manipulation results in denial of service. This vulnerability is cataloged as CVE-2023-36831. The attack may be launched remotely. There is no exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability, which was classified as critical, was found in Juniper Junos OS on SRX (Router Operating System). Affected is an unknown part of the component SSL Proxy/UTM Web-Filtering. The manipulation with an unknown input leads to a denial of service vulnerability. CWE is classifying the issue as CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. This is going to have an impact on availability. CVE summarizes:

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.

The weakness was shared 07/14/2023 as JSA71636. The advisory is available at supportportal.juniper.net. This vulnerability is traded as CVE-2023-36831 since 06/27/2023. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1499 by the MITRE ATT&CK project.

Upgrading to version 22.2R3, 22.3R2-S1, 22.3R3, 22.4R1-S2 or 22.4R2 eliminates this vulnerability.

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Productinfo

Type

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.3

VulDB Base Score: 7.5
VulDB Temp Score: 7.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 7.5
CNA Vector (Juniper Networks, Inc.): 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Junos OS 22.2R3/22.3R2-S1/22.3R3/22.4R1-S2/22.4R2

Timelineinfo

06/27/2023 🔍
07/14/2023 +17 days 🔍
07/14/2023 +0 days 🔍
08/05/2023 +22 days 🔍

Sourcesinfo

Vendor: juniper.net

Advisory: JSA71636
Status: Confirmed

CVE: CVE-2023-36831 (🔍)
GCVE (CVE): GCVE-0-2023-36831
GCVE (VulDB): GCVE-100-234174

Entryinfo

Created: 07/14/2023 18:40
Updated: 08/05/2023 20:47
Changes: 07/14/2023 18:40 (51), 08/05/2023 20:47 (1)
Complete: 🔍
Cache ID: 216::103

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