[Bug 1025670] Re: Segfault (.bss overflow) in PCRE

[Tim Starling]

** Patch added: "Limit unicode codepoint to U+10FFFF"
   https://bugs.launchpad.net/bugs/1025670/+attachment/3226061/+files/fix-large-char-segfault.patch

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Title:
  Segfault (.bss overflow) in PCRE

Status in “pcre3” package in Ubuntu:
  New

Bug description:
  A bug in PCRE was fixed upstream. The issue is a segfault with a
  pattern like /\x{300000}/ui, e.g.

  pcregrep -ui '\x{300000}' < /dev/null

  There was no bounds checking on access to some UCD character tables,
  and insufficient bounds checking in \x character construction. The fix
  was included in a commit that did a lot of other things:

  http://vcs.pcre.org/viewvc?view=revision&revision=774

  but I have split out the relevant single-line fix for your
  convenience. Patch attached.

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