Heartbleed Memory Disclosure - Upgrade OpenSSL Now!
Summary: Heartbleed is a vulnerability in OpenSSL 1.0.1 through 1.0.1f that lets an attacker read up to 64KB of heap memory without any privileged information or credentials, because the heartbeat processing functions use an attacker-supplied length in memcpy() without checking the actual record length. Cisco Talos said internal testing successfully retrieved usernames, passwords, and SSL certificates, and it released detection in SIDs 30510 through 30517 plus community ruleset coverage.
Key Takeaway: The bug leaks up to 64KB of heap per request with no credentials required, and Talos pulled usernames, passwords, and SSL certificates out of that memory in its own testing - so the private keys and credentials sitting in your TLS-terminating servers are the exposure, not just the OpenSSL version number.
Read the original at Cisco Talos ↗
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