[pcre-dev] [Bug 1991] New: PCRE2 10.23-RC1 - Stack overflow …

https://bugs.exim.org/show_bug.cgi?id=1991

            Bug ID: 1991
           Summary: PCRE2 10.23-RC1 - Stack overflow in
                    internal_dfa_match()
           Product: PCRE
           Version: N/A
          Hardware: x86
                OS: Linux
            Status: NEW
          Severity: bug
          Priority: medium
         Component: Code
          Assignee: ph10@???
          Reporter: fumfi.255@???
                CC: pcre-dev@???

Created attachment 955
--> https://bugs.exim.org/attachment.cgi?id=955&action=edit
POC to trigger stack overflow (pcre2test)

Affected:
- PCRE2 version 10.23-RC1 2016-08-01 (SVN revision: 610)

To reproduce the problem (pcre2test):
pcre2test pcre2_so_internal_dfa_match /dev/null

ASAN output:

==19045==ERROR: AddressSanitizer: stack-overflow on address 0x7ffeb5444dc4 (pc
0x7f54ff2766db bp 0x7ffeb54450f0 sp 0x7ffeb5444ca0 T0)
    #0 0x7f54ff2766da in internal_dfa_match XYZ/pcre/src/pcre2_dfa_match.c:375
    #1 0x7f54ff285d94 in internal_dfa_match
XYZ/pcre/src/pcre2_dfa_match.c:2750:14
    #2 0x7f54ff285d94 in internal_dfa_match
XYZ/pcre/src/pcre2_dfa_match.c:2750:14
    #3 0x7f54ff285d94 in internal_dfa_match
XYZ/pcre/src/pcre2_dfa_match.c:2750:14
    #4 0x7f54ff285d94 in internal_dfa_match
XYZ/pcre/src/pcre2_dfa_match.c:2750:14
    #5 0x7f54ff285d94 in internal_dfa_match
XYZ/pcre/src/pcre2_dfa_match.c:2750:14
    #6 0x7f54ff285d94 in internal_dfa_match
XYZ/pcre/src/pcre2_dfa_match.c:2750:14
    #7 0x7f54ff285d94 in internal_dfa_match
XYZ/pcre/src/pcre2_dfa_match.c:2750:14
    #8 0x7f54ff285d94 in internal_dfa_match
XYZ/pcre/src/pcre2_dfa_match.c:2750:14
    #9 0x7f54ff285d94 in internal_dfa_match
XYZ/pcre/src/pcre2_dfa_match.c:2750:14

##############################################################################
    #216 0x7f54ff285d94 in internal_dfa_match
XYZ/pcre/src/pcre2_dfa_match.c:2750:14
    #217 0x7f54ff2757cf in pcre2_dfa_match_8
XYZ/pcre/src/pcre2_dfa_match.c:3563:8
    #218 0x4ef5f7 in process_data XYZ/pcre/src/pcre2test.c:6561:7
    #219 0x4ef5f7 in main XYZ/pcre/src/pcre2test.c:7788
    #220 0x7f54fe12f82f in __libc_start_main
(/lib/x86_64-linux-gnu/libc.so.6+0x2082f)
    #221 0x41aad8 in _start (/usr/local/bin/pcre2test+0x41aad8)

SUMMARY: AddressSanitizer: stack-overflow XYZ/pcre/src/pcre2_dfa_match.c:375 in
internal_dfa_match
==19045==ABORTING

Regards,
Kamil Frankowicz

--
You are receiving this mail because:
You are on the CC list for the bug.