system
Describe <CVE-2019-11837>.
user
What is <CVE-2019-11837>?
assistant
njs through 0.3.1, used in NGINX, has a segmentation fault in String.prototype.toBytes for negative arguments, related to nxt_utf8_next in nxt/nxt_utf8.h and njs_string_offset in njs/njs_string.c..