Public bug reported: Hi,
I updated from ubuntu 14.04 to 18.04 and installed a custom (old) application. When starting the application it stop immediately with this error message: "glibc detected an invalid stdio handle" This error message was added by commit [1] "libio: Implement vtable verification [BZ #20191]" to fix a security issue [2]. I tested with several Linux distribution (so different libc version) and the application is working fine with Fedora 30 (Glibc 2.29). There is an interesting patch [3] from Glibc 2.28 which was backported to Glibc 2.27 [4] "libio: Disable vtable validation in case of interposition [BZ #23313]" But Ubuntu 18.04 is still using an old Glibc 2.27 version (from 02-2018). Here is the Glibc version used in 18.04: $ dpkg -s libc6 [...] Version: 2.27-3ubuntu1 Looking at the changelog, ubuntu updated Glibc 2.27 the 16 Apr 2018 but there is a lot of fix from upstream Glibc 2.27 stable branch. The one I'm looking for was merged the 07-2018. It would be great if Ubuntu 18.04 can update Glibc to the latest stable version. Best regards, Romain [1] https://sourceware.org/git/?p=glibc.git;a=commitdiff;h=db3476aff19b75c4fdefbe65fcd5f0a90588ba51 [2] https://dhavalkapil.com/blogs/FILE-Structure-Exploitation [3] https://sourceware.org/git/?p=glibc.git;a=commitdiff;h=c402355dfa7807b8e0adb27c009135a7e2b9f1b0 [4] https://sourceware.org/git/?p=glibc.git;a=commitdiff;h=3bb748257405e94e13de76573a4e9da1cfd961d0 ** Affects: glibc (Ubuntu) Importance: Undecided Status: New ** Tags: glibc ** Tags added: glibc -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1851263 Title: Ubuntu 18.04.3 LTS bump Glibc 2.27 to the latest stable To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/glibc/+bug/1851263/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
