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Tag: openssl

3 articles

Cybersecurity team workspace with laptop code, diagrams, and notes.

OpenSSL Discloses High-Severity DTLS Flaw That Leaks Heap Memory

A newly discovered OpenSSL flaw, CVE-2026-84782, can cause serious problems, leaking sensitive heap memory or even crashing your program, putting your data at risk. Fortunately, OpenSSL has released fixes to patch this high-severity DTLS vulnerability.

Analyst 207
Rows of computer servers and networking equipment in a dimly lit data center with one server highlighted.

OpenSSL Flaw Exposes Servers to Memory Exhaustion Attacks

A newly discovered OpenSSL flaw, dubbed HollowByte, leaves unpatched servers vulnerable to memory exhaustion attacks, where a mere 11 bytes can trigger the allocation of up to 131 KB of memory for a message that never arrives. This tiny trigger can bring a server to its knees, freezing memory and blocking critical connections.

Analyst 207
Dimly lit server room with one server showing high memory usage.

OpenSSL Servers Vulnerable to Memory-Bloating DDoS Attacks

Beware: a simple 11-byte malicious input can cripple OpenSSL servers with a devastating DDoS attack, leaving them permanently bloated and vulnerable. This sneaky exploit, dubbed HollowByte, takes advantage of a weakness in OpenSSL's TLS handshake to drain server resources.

Analyst 207