Ruby-lang Ruby 2.3.0

Ruby through 2.2.7, 2.3.x through 2.3.4, and 2.4.x through 2.4.1 can expose arbitrary memory during a JSON.generate call. The issues lies in using strdup in ext/json/ext/generator/generator.c, which will stop after encountering a '\0' byte, returning a pointer to a string of length zero, which is not the length stored in space_len.

Published: 2017-08-31T17:00:00.000Z
Updated: 2024-08-05T19:13:41.685Z

The decode method in the OpenSSL::ASN1 module in Ruby before 2.2.8, 2.3.x before 2.3.5, and 2.4.x through 2.4.1 allows attackers to cause a denial of service (interpreter crash) via a crafted string.

Published: 2017-09-19T17:00:00.000Z
Updated: 2024-08-05T19:13:41.487Z

The Basic authentication code in WEBrick library in Ruby before 2.2.8, 2.3.x before 2.3.5, and 2.4.x through 2.4.1 allows remote attackers to inject terminal emulator escape sequences into its log and possibly execute arbitrary commands via a crafted user name.

Published: 2017-09-19T17:00:00.000Z
Updated: 2024-08-05T17:50:11.932Z

Ruby before 2.4.2, 2.3.5, and 2.2.8 is vulnerable to a malicious format string which contains a precious specifier (*) with a huge minus value. Such situation can lead to a buffer overrun, resulting in a heap memory corruption or an information disclosure from the heap.

Published: 2017-09-15T19:00:00.000Z
Updated: 2024-09-17T01:36:46.258Z

An exploitable heap overflow vulnerability exists in the Fiddle::Function.new "initialize" function functionality of Ruby. In Fiddle::Function.new "initialize" heap buffer "arg_types" allocation is made based on args array length. Specially constructed object passed as element of args array can increase this array size after mentioned allocation and cause heap overflow.

Published: 2017-01-06T21:00:00.000Z
Updated: 2024-08-05T23:24:48.934Z

An exploitable heap overflow vulnerability exists in the Psych::Emitter start_document function of Ruby. In Psych::Emitter start_document function heap buffer "head" allocation is made based on tags array length. Specially constructed object passed as element of tags array can increase this array size after mentioned allocation and cause heap overflow.

Published: 2020-02-14T00:00:00.000Z
Updated: 2024-08-05T23:24:48.961Z

Type confusion exists in _cancel_eval Ruby's TclTkIp class method. Attacker passing different type of object than String as "retval" argument can cause arbitrary code execution.

Published: 2017-01-06T21:00:00.000Z
Updated: 2024-08-05T23:24:49.158Z

Type confusion exists in two methods of Ruby's WIN32OLE class, ole_invoke and ole_query_interface. Attacker passing different type of object than this assumed by developers can cause arbitrary code execution.

Published: 2017-01-06T21:00:00.000Z
Updated: 2024-08-05T23:24:48.901Z