https://bugs.exim.org/show_bug.cgi?id=1854
Bug ID: 1854
Summary: Null pointer dereference in pcretest
Product: PCRE
Version: 8.39
Hardware: x86
OS: Linux
Status: NEW
Severity: security
Priority: medium
Component: Code
Assignee: p...@hermes.cam.ac.uk
Reporter: bshas...@sec.t-labs.tu-berlin.de
CC: pcre-dev@exim.org
The pcretest binary segfaults on a null pointer dereference for the attached
inputs (filename start with HARDEN prefix) when invoked like so:
pcretest -q <input_filename> /dev/null
The null dereference occurs due to an integer overflow while parsing digits
contained in the input string/file. I have also attached a tentative patch for
this. Could you please acknowledge this issue? Happy to help.
Thanks,
Bhargava
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