https://bugs.exim.org/show_bug.cgi?id=1976
Bug ID: 1976
Summary: PCRE2 10.23-RC1 pcre2test - Out of bounds read in
operatorString()
Product: PCRE
Version: N/A
Hardware: x86-64
OS: Linux
Status: NEW
Severity: bug
Priority: medium
Component: Code
Assignee: p...@hermes.cam.ac.uk
Reporter: fumfi....@gmail.com
CC: pcre-dev@exim.org
Created attachment 940
--> https://bugs.exim.org/attachment.cgi?id=940&action=edit
POC to trigger out of bounds read (pcre2test)
Affected:
- PCRE2 version 10.23-RC1 2016-08-01 (SVN revision: 610)
To reproduce the problem (pcre2test):
pcre2test pcre2test_oobr_pchar /dev/null
==16515==ERROR: AddressSanitizer: SEGV on unknown address 0x7fd86d4d9a01 (pc
0x0000004feca0 bp 0x7ffc490c5450 sp 0x7ffc490c53a0 T0)
==16515==The signal is caused by a READ memory access.
#0 0x4fec9f in pchar XYZ/src/pcre2test.c:2578:5
#1 0x4f945e in pchars8 XYZ/src/pcre2test.c:2664:12
#2 0x4efe10 in process_data XYZ/src/pcre2test.c:6738:11
#3 0x4efe10 in main XYZ/src/pcre2test.c:7788
#4 0x7fd86d32582f in __libc_start_main
(/lib/x86_64-linux-gnu/libc.so.6+0x2082f)
#5 0x41aad8 in _start (/usr/local/bin/pcre2test+0x41aad8)
AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV XYZ/src/pcre2test.c:2578:5 in pchar
==16515==ABORTING
Regards,
Kamil Frankowicz
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