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Garbage data in the incoming remote packet may crash the server [CORE1681] #2106

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@firebird-automations

Description

@firebird-automations

Submitted by: @dyemanov

If some kinds of remote packets contain wrong (garbage) data, it may cause an invalid memory access inside the server, forcing a crash. Reported by Core Security Labs, the disclosure is published here: http://www.coresecurity.com/?action=item&id=2095

Commits: 3201c3d 84a0dc8 ee8fdef