Maksymilian Arciemowicz reported a resource consumption issue in the libcxx C++ regex library. If an attacker were able to make an application using this library process a specially-crafted regular expression, it could cause the application to consume excessive system resources.
A patch is not yet available. Currently on Fedora, this requires compiling the affected program with the experimental ISO C++ 2011 support by using the "-std=c++11" option.
Created llvm tracking bugs for this issue:
Affects: fedora-all [bug 1126696]
Affects: epel-6 [bug 1126698]
Affects: epel-7 [bug 1126699]
Created mingw-llvm tracking bugs for this issue:
Affects: fedora-all [bug 1126697]
CVE request: http://www.openwall.com/lists/oss-security/2014/08/05/4
Does this only apply to libcxx and not libstdc++? Because libstdc++ is used and not libcxx on EPEL 6/7 (and also on Fedora I believe).
Sorry for the confusion (and spam). I think it may only be libcxx
This is not relevant to RHEL or Fedora, libc++ issues don't belong here.
libstdc++ is used and not libc++ so this issue does not effect RHEL/Fedora.