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AlienVault OTX Vulnerabilities

AlienVault OTX Malware

Squid is a caching proxy for the Web. In versions 6.3 and below, Squid is vulnerable to a heap buffer overflow and possible remote code execution attack when processing URN due to incorrect buffer management. This has been fixed in version 6.4. To work around this issue, disable URN access permissions.

CVE-2025-54574 is a heap-based buffer overflow vulnerability identified in the Squid caching proxy server, specifically affecting versions 6.3 and earlier. Squid is widely used to improve web performance and enforce access policies by caching web content. The vulnerability stems from incorrect buffer management during the processing of Uniform Resource Names (URNs), which can lead to memory corruption on the heap. This memory corruption can be exploited remotely by an unauthenticated attacker to execute arbitrary code on the affected system, potentially leading to full system compromise. The vulnerability does not require any user interaction and can be triggered over the network, making it highly exploitable. The vulnerability impacts the integrity and availability of the system, as attackers can manipulate proxy behavior or cause denial of service. The issue has been addressed in Squid version 6.4, which includes proper buffer handling to prevent overflow. Until patching is possible, disabling URN access permissions serves as a mitigation to reduce attack surface. No public exploits or active attacks have been reported yet, but the critical CVSS score of 9.3 reflects the high risk posed by this vulnerability.

Detailed information about CVE-2025-54574: CWE-122: Heap-based Buffer Overflow in squid-cache squid affecting squid-cache squid. Get real-time updates, technica

CVE-2025-54574: CWE-122: Heap-based Buffer Overflow in squid-cache squid - Live Threat Intelligence - Threat Radar | OffSeq.com

CVE-2025-54574: CWE-122: Heap-based Buffer Overflow in squid-cache squid

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