CVSS: 9.8EPSS: 2%CPEs: 13EXPL: 1CVE-2017-0899 – rubygems: Escape sequence in the "summary" field of gemspec
https://notcve.org/view.php?id=CVE-2017-0899
RubyGems version 2.6.12 and earlier is vulnerable to maliciously crafted gem specifications that include terminal escape characters. Printing the gem specification would execute terminal escape sequences. RubyGems 2.6.12 y anteriores es vulnerable a especificaciones de gemas manipuladas maliciosamente que incluyen caracteres de escapada de terminal. Imprimir la especificación de las gemas ejecutaría secuencias de escapada de terminal. A vulnerability was found where rubygems did not properly sanitize gems' specification text. • http://blog.rubygems.org/2017/08/27/2.6.13-released.html http://www.securityfocus.com/bid/100576 http://www.securitytracker.com/id/1039249 https://access.redhat.com/errata/RHSA-2017:3485 https://access.redhat.com/errata/RHSA-2018:0378 https://access.redhat.com/errata/RHSA-2018:0583 https://access.redhat.com/errata/RHSA-2018:0585 https://github.com/rubygems/rubygems/commit/1bcbc7fe637b03145401ec9c094066285934a7f1 https://github.com/rubygems/rubygems/commit/ef0aa611effb5f54d40c7fba6e8235eb43c5a491 https • CWE-94: Improper Control of Generation of Code ('Code Injection') CWE-138: Improper Neutralization of Special Elements CWE-150: Improper Neutralization of Escape, Meta, or Control Sequences •
CVSS: 8.1EPSS: 0%CPEs: 16EXPL: 2CVE-2017-0902 – rubygems: DNS hijacking vulnerability
https://notcve.org/view.php?id=CVE-2017-0902
RubyGems version 2.6.12 and earlier is vulnerable to a DNS hijacking vulnerability that allows a MITM attacker to force the RubyGems client to download and install gems from a server that the attacker controls. RubyGems 2.6.12 y anteriores es vulnerable a secuestro de DNS, lo que permite a un atacante Man-in-the-Middle (MitM) forzar el cliente RubyGems a que descargue e instale gemas desde un servidor que está bajo el control del atacante. A vulnerability was found where rubygems did not sanitize DNS responses when requesting the hostname of the rubygems server for a domain, via a _rubygems._tcp DNS SRV query. An attacker with the ability to manipulate DNS responses could direct the gem command towards a different domain. • http://blog.rubygems.org/2017/08/27/2.6.13-released.html http://www.securityfocus.com/bid/100586 http://www.securitytracker.com/id/1039249 https://access.redhat.com/errata/RHSA-2017:3485 https://access.redhat.com/errata/RHSA-2018:0378 https://access.redhat.com/errata/RHSA-2018:0583 https://access.redhat.com/errata/RHSA-2018:0585 https://github.com/rubygems/rubygems/commit/8d91516fb7037ecfb27622f605dc40245e0f8d32 https://hackerone.com/reports/218088 https://lists.debian.org/debian- • CWE-138: Improper Neutralization of Special Elements CWE-346: Origin Validation Error CWE-350: Reliance on Reverse DNS Resolution for a Security-Critical Action •
CVSS: 7.5EPSS: 2%CPEs: 13EXPL: 1CVE-2017-0900 – rubygems: No size limit in summary length of gem spec
https://notcve.org/view.php?id=CVE-2017-0900
RubyGems version 2.6.12 and earlier is vulnerable to maliciously crafted gem specifications to cause a denial of service attack against RubyGems clients who have issued a `query` command. RubyGems 2.6.12 y anteriores es vulnerable a especificaciones de gemas manipuladas maliciosamente para provocar ataques de denegación de servicio contra clientes RubyGems que hayan enviado un comando query. It was found that rubygems could use an excessive amount of CPU while parsing a sufficiently long gem summary. A specially crafted gem from a gem repository could freeze gem commands attempting to parse its summary. • http://blog.rubygems.org/2017/08/27/2.6.13-released.html http://www.securityfocus.com/bid/100579 http://www.securitytracker.com/id/1039249 https://access.redhat.com/errata/RHSA-2017:3485 https://access.redhat.com/errata/RHSA-2018:0378 https://access.redhat.com/errata/RHSA-2018:0583 https://access.redhat.com/errata/RHSA-2018:0585 https://github.com/rubygems/rubygems/commit/8a38a4fc24c6591e6c8f43d1fadab6efeb4d6251 https://hackerone.com/reports/243003 https://lists.debian.org/debian- • CWE-20: Improper Input Validation CWE-138: Improper Neutralization of Special Elements •
CVSS: 7.5EPSS: 0%CPEs: 16EXPL: 2CVE-2017-0901 – RubyGems < 2.6.13 - Arbitrary File Overwrite
https://notcve.org/view.php?id=CVE-2017-0901
RubyGems version 2.6.12 and earlier fails to validate specification names, allowing a maliciously crafted gem to potentially overwrite any file on the filesystem. RubyGems 2.6.12 y anteriores no valida con éxito los nombres de las especificaciones, permitiendo que una gema manipulada maliciosamente sobrescriba cualquier archivo en el sistema de archivos. It was found that rubygems did not sanitize gem names during installation of a given gem. A specially crafted gem could use this flaw to install files outside of the regular directory. RubyGems versions prior to 2.6.13 suffer from an arbitrary file overwrite vulnerability. • https://www.exploit-db.com/exploits/42611 http://blog.rubygems.org/2017/08/27/2.6.13-released.html http://www.securityfocus.com/bid/100580 http://www.securitytracker.com/id/1039249 https://access.redhat.com/errata/RHSA-2017:3485 https://access.redhat.com/errata/RHSA-2018:0378 https://access.redhat.com/errata/RHSA-2018:0583 https://access.redhat.com/errata/RHSA-2018:0585 https://github.com/rubygems/rubygems/commit/ad5c0a53a86ca5b218c7976765c0365b91d22cb2 https://hackerone.com/repor • CWE-20: Improper Input Validation CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') CWE-138: Improper Neutralization of Special Elements •
CVSS: 9.8EPSS: 0%CPEs: 29EXPL: 1CVE-2017-14064 – ruby: Arbitrary heap exposure during a JSON.generate call
https://notcve.org/view.php?id=CVE-2017-14064
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. Ruby hasta la versión 2.2.7, 2.3.x hasta la 2.3.4, y 2.4.x hasta la 2.4.1 puede exponer memoria arbitraria durante una llamada JSON.generate. Los problemas surgen al usar strdup en ext/json/ext/generator/generator.c, el cual se detendría después de encontrar un byte '\0', devolviendo un puntero a un string de longitud cero, que no es la longitud almacenada en space_len. A buffer overflow vulnerability was found in the JSON extension of ruby. • http://www.securityfocus.com/bid/100890 http://www.securitytracker.com/id/1039363 http://www.securitytracker.com/id/1042004 https://access.redhat.com/errata/RHSA-2017:3485 https://access.redhat.com/errata/RHSA-2018:0378 https://access.redhat.com/errata/RHSA-2018:0583 https://access.redhat.com/errata/RHSA-2018:0585 https://bugs.ruby-lang.org/issues/13853 https://github.com/flori/json/commit/8f782fd8e181d9cfe9387ded43a5ca9692266b85 https://hackerone.com/reports/209949 https://lists. • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer CWE-200: Exposure of Sensitive Information to an Unauthorized Actor •