Description
An Improper Check for Unusual or Exceptional Conditions vulnerability in the routing protocol daemon (RPD) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated, network based attacker to cause a Denial of Service (DoS).
In a scenario where BGP Monitoring Protocol (BMP) is configured with rib-in pre-policy monitoring, receiving a BGP update with a specifically malformed AS PATH attribute over an established BGP session, can cause an RPD crash and restart.
This issue affects:
Junos OS:
* All versions before 21.2R3-S8,
* 21.4 versions before 21.4R3-S8,
* 22.2 versions before 22.2R3-S4,
* 22.3 versions before 22.3R3-S3,
* 22.4 versions before 22.4R3-S2,
* 23.2 versions before 23.2R2-S1,
* 23.4 versions before 23.4R1-S2, 23.4R2;
Junos OS Evolved:
* All versions before 21.2R3-S8-EVO,
* 21.4 versions before 21.4R3-S8-EVO,
* 22.2 versions before 22.2R3-S4-EVO,
* 22.3 versions before 22.3R3-S3-EVO,
* 22.4 versions before 22.4R3-S2-EVO,
* 23.2 versions before 23.2R2-S1-EVO,
* 23.4 versions before 23.4R1-S2-EVO, 23.4R2-EVO.
Understanding This Vulnerability
This Common Vulnerabilities and Exposures (CVE) entry provides detailed information about a security vulnerability that has been publicly disclosed. CVEs are standardized identifiers assigned by MITRE Corporation to track and catalog security vulnerabilities across software and hardware products.
The severity rating (HIGH) indicates the potential impact of this vulnerability based on the CVSS (Common Vulnerability Scoring System) framework. Higher severity ratings typically indicate vulnerabilities that could lead to more significant security breaches if exploited. Security teams should prioritize remediation efforts based on severity, exploit availability, and the EPSS (Exploit Prediction Scoring System) score, which predicts the likelihood of exploitation in the wild.
If this vulnerability affects products or systems in your infrastructure, we recommend reviewing the affected products section, checking for available patches or updates from vendors, and implementing recommended workarounds or solutions until a permanent fix is available. Organizations should also monitor security advisories and threat intelligence feeds for updates about active exploitation of this vulnerability.