Ruby String#unpack Method Information Disclosure Vulnerability

Ruby is a cross-platform, object-oriented, dynamically typed programming language developed by Japanese software developer Yukihiro Matsumoto. An information disclosure vulnerability exists in the Stringunpack method of Ruby, which stems from the program's failure to properly handle the '@'...

CVE-2018-8778

In Ruby before 2.2.10, 2.3.x before 2.3.7, 2.4.x before 2.4.4, 2.5.x before 2.5.1, and 2.6.0-preview1, an attacker controlling the unpacking format similar to format string vulnerabilities can trigger a buffer under-read in the Stringunpack method, resulting in a massive and controlled informatio...

Format string

In Ruby before 2.2.10, 2.3.x before 2.3.7, 2.4.x before 2.4.4, 2.5.x before 2.5.1, and 2.6.0-preview1, an attacker controlling the unpacking format similar to format string vulnerabilities can trigger a buffer under-read in the Stringunpack method, resulting in a massive and controlled informatio...

CVE-2018-8778

In Ruby before 2.2.10, 2.3.x before 2.3.7, 2.4.x before 2.4.4, 2.5.x before 2.5.1, and 2.6.0-preview1, an attacker controlling the unpacking format similar to format string vulnerabilities can trigger a buffer under-read in the Stringunpack method, resulting in a massive and controlled informatio...

ALPINE-CVE-2018-8778

In Ruby before 2.2.10, 2.3.x before 2.3.7, 2.4.x before 2.4.4, 2.5.x before 2.5.1, and 2.6.0-preview1, an attacker controlling the unpacking format similar to format string vulnerabilities can trigger a buffer under-read in the Stringunpack method, resulting in a massive and controlled informatio...

CVE-2018-8778

In Ruby before 2.2.10, 2.3.x before 2.3.7, 2.4.x before 2.4.4, 2.5.x before 2.5.1, and 2.6.0-preview1, an attacker controlling the unpacking format similar to format string vulnerabilities can trigger a buffer under-read in the Stringunpack method, resulting in a massive and controlled informatio...

CVE-2018-8778

Removed by vendor...

CVE-2018-8778

In Ruby before 2.2.10, 2.3.x before 2.3.7, 2.4.x before 2.4.4, 2.5.x before 2.5.1, and 2.6.0-preview1, an attacker controlling the unpacking format similar to format string vulnerabilities can trigger a buffer under-read in the Stringunpack method, resulting in a massive and controlled informatio...

UBUNTU-CVE-2018-8778

In Ruby before 2.2.10, 2.3.x before 2.3.7, 2.4.x before 2.4.4, 2.5.x before 2.5.1, and 2.6.0-preview1, an attacker controlling the unpacking format similar to format string vulnerabilities can trigger a buffer under-read in the Stringunpack method, resulting in a massive and controlled informatio...

CVE-2018-8778

In Ruby before 2.2.10, 2.3.x before 2.3.7, 2.4.x before 2.4.4, 2.5.x before 2.5.1, and 2.6.0-preview1, an attacker controlling the unpacking format similar to format string vulnerabilities can trigger a buffer under-read in the Stringunpack method, resulting in a massive and controlled informatio...

Buffer under-read in String#unpack

An attacker controlling the unpacking format similar to format string vulnerabilities can trigger a buffer under-read in the Stringunpack method, resulting in a massive and controlled information disclosure. Stringunpack receives format specifiers as its parameter, and can be specified the positi...

CVE-2018-8778

A integer underflow was found in the way Stringunpack decodes the unpacking format. An attacker, able to control the unpack format, could use this flaw to disclose arbitrary parts of the application's memory. Mitigation Vulnerable code when Stringunpacks argument is attacker controlled. In the...

Buffer under-read in String#unpack

Stringunpack receives format specifiers as its parameter, and can be specified the position of parsing the data by the specifier @. If a big number is passed with @, the number is treated as the negative value, and out-of-buffer read is occurred. So, if a script accepts an external input as the...