cybersecurityOpenSSLvulnerabilityDenial-of-ServiceCanada
HollowByte DDoS flaw bloats OpenSSL server memory with 11-byte payload
July 17, 2026
Back to all postsA critical vulnerability has been discovered in the OpenSSL library, a widely-used open-source encryption tool. The vulnerability, named HollowByte DDoS flaw, allows an attacker to exploit a 10-byte payload that expands in memory, potentially causing servers to run out of resources and become unresponsive. This issue poses a significant threat to Canadian businesses as OpenSSL is integrated into many popular applications, including web browsers and email services. The flaw can lead to Denial-of-Service (DoS) attacks, disrupting business operations, and in some cases, exposing sensitive data. To mitigate this risk, it's crucial for SMB owners and IT managers to update their OpenSSL libraries to the latest versions as soon as possible, ensuring they have protections against this vulnerability.
Source: BleepingComputer
cybersecurityOpenSSLvulnerabilityDenial-of-ServiceCanada
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