ruby: Buffer underrun vulnerability in Kernel.sprintf

A buffer underflow was found in ruby's sprintf function. An attacker, with ability to control its format string parameter, could send a specially crafted string that would disclose heap memory or crash the interpreter...

Debian DLA-1113-1 : ruby1.8 security update

Some vulnerabilities were found in the Ruby 1.8 package that affects the LTS distribution. CVE-2017-0898 Buffer underrun vulnerability in Kernel.sprintf CVE-2017-10784 Escape sequence injection vulnerability in the Basic authentication of WEBrick For Debian 7 'Wheezy', these problems have been...

ruby -- multiple vulnerabilities

Ruby blog: CVE-2017-0898: Buffer underrun vulnerability in Kernel.sprintf If a malicious format string which contains a precious specifier is passed and a huge minus value is also passed to the specifier, buffer underrun may be caused. In such situation, the result may contains heap, or the Ruby...