New Critical flaw found in OpenSSL

​Last week, OpenSSL released an update that fixed 14 flaws. One of the flaws fixed was an OpenSSL memory corruption flaw but the fix resulted in a dangling pointer flaw in the cryptographic system.

The dangling pointer vulnerability was disclosed by Google information security engineer Robert Święcki and OpenSSL released a patch for it on Monday.

“The patch applied to address CVE-2016-6307 resulted in an issue where if a message larger than approx 16k is received then the underlying buffer to store the incoming message is reallocated and moved, unfortunately a dangling pointer to the old location is left which results in an attempt to write to the previously freed location.” the advisory stated.

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