Public bug reported: 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. ** Affects: pcre3 (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1025670 Title: Segfault (.bss overflow) in PCRE To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/pcre3/+bug/1025670/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs