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[Mark Ebbers <m.ebbers@xxxxxxxxx>]

Public bug reported:

It looks like that libPCRE3 8.31 included in Ubuntu 13.10 does not
handle regex matching alright. This also affects the libPocoFoundation
RegularExpression classes.

I attached a proof-of-concept which tests a good and bad heystack string
to a regex pattern with Poco, Boost and PCRE. I tested it on two
different machines with the following output:

Ubuntu 13.10 3.11.0-13-generic #20-Ubuntu SMP Wed Oct 23 17:26:33 UTC 2013 i686 i686 i686 GNU/Linux
Poco 0x01030600 on Linux 3.11.0-13-generic @ i686
Poco  match 1234567890 to pattern ^[0-9]{10} matches? no --> NOT CORRECT
Poco  match 123456789 to pattern ^[0-9]{10} matches? no
Boost match 1234567890 to pattern ^[0-9]{10} matches? yes
Boost match 123456789 to pattern ^[0-9]{10} matches? no
PCRE 8.31 2012-07-06
PCRE  match 1234567890 to pattern ^[0-9]{10} matches? yes
PRCE  match 123456789 to pattern ^[0-9]{10} matches? yes --> NOT CORRECT

Ubuntu 12.04.3 LTS  3.8.0-29-generic #42~precise1-Ubuntu SMP Wed Aug 14 15:31:16 UTC 2013 i686 i686 i386 GNU/Linux
Poco 0x01030600 on Linux 3.8.0-29-generic @ i686
Poco  match 1234567890 to pattern ^[0-9]{10} matches? yes --> OK
Poco  match 123456789 to pattern ^[0-9]{10} matches? no
Boost match 1234567890 to pattern ^[0-9]{10} matches? yes
Boost match 123456789 to pattern ^[0-9]{10} matches? no
PCRE 8.12 2011-01-15
PCRE  match 1234567890 to pattern ^[0-9]{10} matches? yes
PRCE  match 123456789 to pattern ^[0-9]{10} matches? no --> OK

** Affects: pcre3 (Ubuntu)
     Importance: Undecided
         Status: New

** Affects: poco (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: pcre poco regex

** Attachment added: "Proof-of-concept"
   https://bugs.launchpad.net/bugs/1361610/+attachment/4187289/+files/regex.cc

** Also affects: poco (Ubuntu)
   Importance: Undecided
       Status: New

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https://bugs.launchpad.net/bugs/1361610

Title:
  libPCRE3 8.31 regex matching is not working

Status in “pcre3” package in Ubuntu:
  New
Status in “poco” package in Ubuntu:
  New

Bug description:
  It looks like that libPCRE3 8.31 included in Ubuntu 13.10 does not
  handle regex matching alright. This also affects the libPocoFoundation
  RegularExpression classes.

  I attached a proof-of-concept which tests a good and bad heystack
  string to a regex pattern with Poco, Boost and PCRE. I tested it on
  two different machines with the following output:

  Ubuntu 13.10 3.11.0-13-generic #20-Ubuntu SMP Wed Oct 23 17:26:33 UTC 2013 i686 i686 i686 GNU/Linux
  Poco 0x01030600 on Linux 3.11.0-13-generic @ i686
  Poco  match 1234567890 to pattern ^[0-9]{10} matches? no --> NOT CORRECT
  Poco  match 123456789 to pattern ^[0-9]{10} matches? no
  Boost match 1234567890 to pattern ^[0-9]{10} matches? yes
  Boost match 123456789 to pattern ^[0-9]{10} matches? no
  PCRE 8.31 2012-07-06
  PCRE  match 1234567890 to pattern ^[0-9]{10} matches? yes
  PRCE  match 123456789 to pattern ^[0-9]{10} matches? yes --> NOT CORRECT

  Ubuntu 12.04.3 LTS  3.8.0-29-generic #42~precise1-Ubuntu SMP Wed Aug 14 15:31:16 UTC 2013 i686 i686 i386 GNU/Linux
  Poco 0x01030600 on Linux 3.8.0-29-generic @ i686
  Poco  match 1234567890 to pattern ^[0-9]{10} matches? yes --> OK
  Poco  match 123456789 to pattern ^[0-9]{10} matches? no
  Boost match 1234567890 to pattern ^[0-9]{10} matches? yes
  Boost match 123456789 to pattern ^[0-9]{10} matches? no
  PCRE 8.12 2011-01-15
  PCRE  match 1234567890 to pattern ^[0-9]{10} matches? yes
  PRCE  match 123456789 to pattern ^[0-9]{10} matches? no --> OK

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