[pcre-dev] [Bug 2007] New: Stack Overflow in op_recurse_ovec…

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Autor: admin
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A: pcre-dev
Asunto: [pcre-dev] [Bug 2007] New: Stack Overflow in op_recurse_ovecsave()
https://bugs.exim.org/show_bug.cgi?id=2007

            Bug ID: 2007
           Summary: Stack Overflow in op_recurse_ovecsave()
           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 966
--> https://bugs.exim.org/attachment.cgi?id=966&action=edit
POC to trigger Stack Overflow (pcre2test)

Affected:
- PCRE2 version 10.23-RC1 2016-08-01 (SVN revision: 634)

To reproduce the problem (pcre2test):
pcre2test pcre2_stack_overflow_op_recurse_ovecsave /dev/null

ASAN output:

==8375==ERROR: AddressSanitizer: stack-overflow on address 0x7fffca46a9a8 (pc
0x0000004a1e85 bp 0x7fffca46b210 sp 0x7fffca46a9b0 T0)
    #0 0x4a1e84 in __asan_memcpy
/home/development/llvm/3.9.0/final/llvm.src/projects/compiler-rt/lib/asan/asan_interceptors.cc:413:3
    #1 0x7ff29234733a in op_recurse_ovecsave XYZ/pcre2/src/pcre2_match.c:480:1
    #2 0x7ff292302390 in match XYZ/pcre2/src/pcre2_match.c:1835:15
    #3 0x7ff29232680c in match XYZ/pcre2/src/pcre2_match.c:1107:7
    #4 0x7ff2922f75c2 in match XYZ/pcre2/src/pcre2_match.c:1948:5
    #5 0x7ff292339279 in match XYZ/pcre2/src/pcre2_match.c:1017:9
    #6 0x7ff29234778f in op_recurse_ovecsave XYZ/pcre2/src/pcre2_match.c:488:9
    ####################### === SNIP! === #######################
    #247 0x7ff292302390 in match XYZ/pcre2/src/pcre2_match.c:1835:15
    #248 0x7ff29232680c in match XYZ/pcre2/src/pcre2_match.c:1107:7
    #249 0x7ff2922f75c2 in match XYZ/pcre2/src/pcre2_match.c:1948:5
    #250 0x7ff292339279 in match XYZ/pcre2/src/pcre2_match.c:1017:9
    #251 0x7ff29234778f in op_recurse_ovecsave
XYZ/pcre2/src/pcre2_match.c:488:9


SUMMARY: AddressSanitizer: stack-overflow
/home/development/llvm/3.9.0/final/llvm.src/projects/compiler-rt/lib/asan/asan_interceptors.cc:413:3
in __asan_memcpy
==8375==ABORTING

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