Memory overflow vulnerability leading to unpredictable or erroneous behavior and Denial of Service
Prioritize patching. It under exploitation confirmed by CISA and has a public proof of concept.
Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
A memory overflow flaw in NetScaler ADC and Gateway can cause the system to behave unpredictably or crash when configured as a Gateway (SSL VPN, ICA Proxy, CVPN, RDP Proxy) or AAA server, disrupting service for users.
Memory overflow vulnerability in NetScaler ADC/Gateway when configured as SSL VPN, ICA Proxy, CVPN, RDP Proxy, or AAA virtual server allows memory corruption leading to unpredictable behavior, erroneous execution, and denial of service. Attack vectors depend on Gateway configuration and AAA service exposure.