[pcre-dev] [Bug 2052] New: invalid memory read in match (pc…

https://bugs.exim.org/show_bug.cgi?id=2052

            Bug ID: 2052
           Summary: invalid memory read in match (pcre_exec.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 993
--> https://bugs.exim.org/attachment.cgi?id=993&action=edit
stacktrace

Hello,

I found an invalid memory read through fuzzing.
It was tested on version 8.40, compiled with clang-3.9.1

Since pcre_exec.c is part of the library, you can consider it a security bug
and change the severity

Output, included stacktrace in attachment.

Command to reproduce:
# pcretest -32 -d $FILE

Reproducer:
https://github.com/asarubbo/poc/blob/master/00204-pcre-invalidread1-pcre_exec

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

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