[pcre-dev] [Bug 1905] New: PCRE2 10.23-RC1 - SEGFAULT

https://bugs.exim.org/show_bug.cgi?id=1905

            Bug ID: 1905
           Summary: PCRE2 10.23-RC1 - SEGFAULT
           Product: PCRE
           Version: N/A
          Hardware: x86-64
                OS: Linux
            Status: NEW
          Severity: bug
          Priority: medium
         Component: Code
          Assignee: ph10@???
          Reporter: fumfi.255@???
                CC: pcre-dev@???

Created attachment 934
--> https://bugs.exim.org/attachment.cgi?id=934&action=edit
POC to trigger SEGFAULT (pcre2test)

Affected:
- PCRE2 version 10.23-RC1 2016-08-01 (SVN revision: 573)

To reproduce the problem (pcre2test):
pcre2test segfault_573 /dev/null


ASAN output:

==32125==ERROR: AddressSanitizer: SEGV on unknown address 0x7f34eafd7297 (pc
0x7f34eae58568 bp 0x7ffecfb7a9b0 sp 0x7ffecfb76980 T0)
==32125==The signal is caused by a READ memory access.
    #0 0x7f34eae58567 in parse_regex
/home/kamil/Desktop/pcre/src/pcre2_compile.c:2310:24
    #1 0x7f34eae58567 in pcre2_compile_8
/home/kamil/Desktop/pcre/src/pcre2_compile.c:9140
    #2 0x4edf58 in process_pattern
/home/kamil/Desktop/pcre/src/pcre2test.c:5033:1
    #3 0x4edf58 in main /home/kamil/Desktop/pcre/src/pcre2test.c:7739
    #4 0x7f34e9d5682f in __libc_start_main
(/lib/x86_64-linux-gnu/libc.so.6+0x2082f)
    #5 0x41a828 in _start (/usr/local/bin/pcre2test+0x41a828)

Regards,
Kamil Frankowicz

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