[pcre-dev] [Bug 2045] New: heap-based bufffer overflow in r…

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Asunto: [pcre-dev] [Bug 2045] New: heap-based bufffer overflow in regexflip8_or_16 (pcretest.c)
https://bugs.exim.org/show_bug.cgi?id=2045

            Bug ID: 2045
           Summary: heap-based bufffer overflow in regexflip8_or_16
                    (pcretest.c)
           Product: PCRE
           Version: 8.40
          Hardware: x86-64
                OS: Linux
            Status: NEW
          Severity: bug
          Priority: medium
         Component: Code
          Assignee: ph10@???
          Reporter: ago@???
                CC: pcre-dev@???


Created attachment 985
--> https://bugs.exim.org/attachment.cgi?id=985&action=edit
stacktrace

Hello,

I found an heap overflow through fuzzing.
It was tested on version 8.40, compiled with clang-3.9.1

Output, included stacktrace in attachment.

Command to reproduce:
# pcretest -16 -d $FILE

Reproducer:
https://github.com/asarubbo/poc/blob/master/00196-pcre-heapoverflow-regexflip8_or_16

( I know that is preferable attach reproducer here, but this link won't expire
in the future )

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