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CVSS: 5.0EPSS: 0%CPEs: 12EXPL: 0

CVE-2011-2686

https://notcve.org/view.php?id=CVE-2011-2686

Ruby before 1.8.7-p352 does not reset the random seed upon forking, which makes it easier for context-dependent attackers to predict the values of random numbers by leveraging knowledge of the number sequence obtained in a different child process, a related issue to CVE-2003-0900. NOTE: this issue exists because of a regression during Ruby 1.8.6 development. Ruby en versiones anteriores a la 1.8.7-p352 no resetea la semilla aleatoria después de la creacción de procesos ("forking"), lo que facilita a atacantes dependientes del contexto predecir los valores de números aleatorios basándose en el conocimiento de números de secuencia obtenidos de procesos hijo diferentes. Vulnerabilidad relacionada con la CVE-2003-0900. NOTA: este problema existe debido a una regresión durante el desarrollo de Ruby 1.8.6. • http://lists.fedoraproject.org/pipermail/package-announce/2011-July/063062.html http://lists.fedoraproject.org/pipermail/package-announce/2011-July/063071.html http://redmine.ruby-lang.org/issues/show/4338 http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=31713 http://svn.ruby-lang.org/repos/ruby/tags/v1_8_7_352/ChangeLog http://www.openwall.com/lists/oss-security/2011/07/11/1 http://www.openwall.com/lists/oss-security/2011/07/12/14 http://www.openw • CWE-310: Cryptographic Issues •

CVSS: 6.8EPSS: 2%CPEs: 38EXPL: 0

CVE-2011-0188 – ruby: memory corruption in BigDecimal on 64bit platforms

https://notcve.org/view.php?id=CVE-2011-0188

The VpMemAlloc function in bigdecimal.c in the BigDecimal class in Ruby 1.9.2-p136 and earlier, as used on Apple Mac OS X before 10.6.7 and other platforms, does not properly allocate memory, which allows context-dependent attackers to execute arbitrary code or cause a denial of service (application crash) via vectors involving creation of a large BigDecimal value within a 64-bit process, related to an "integer truncation issue." La función VpMemAlloc en bigdecimal.c en la clase BigDecimal en Ruby v1.9.2-P136 y anteriores, tal como se utiliza en Apple Mac OS X antes de vv10.6.7 y en otras plataformas, no asigna memoria adecuadamente, lo que permite a atacantes dependientes de contexto ejecutar código de su elección o causar una denegación de servicio (caída de aplicación) a través de vectores que impliquen la creación de un valor BigDecimal grande dentro de un proceso de 64 bits, relacionado con un "fallo de truncado de entero". • http://lists.apple.com/archives/security-announce/2011/Mar/msg00006.html http://support.apple.com/kb/HT4581 http://svn.ruby-lang.org/cgi-bin/viewvc.cgi/trunk/ext/bigdecimal/bigdecimal.c?r1=29364&r2=30993 http://www.mandriva.com/security/advisories?name=MDVSA-2011:097 http://www.mandriva.com/security/advisories?name=MDVSA-2011:098 http://www.redhat.com/support/errata/RHSA-2011-0908.html http://www.redhat.com/support/errata/RHSA-2011-0909.html http://www.redhat.com/support/ • CWE-189: Numeric Errors •

CVSS: 6.3EPSS: 0%CPEs: 6EXPL: 0

CVE-2011-1004 – Ruby: Symlink race condition by removing directory trees in fileutils module

https://notcve.org/view.php?id=CVE-2011-1004

The FileUtils.remove_entry_secure method in Ruby 1.8.6 through 1.8.6-420, 1.8.7 through 1.8.7-330, 1.8.8dev, 1.9.1 through 1.9.1-430, 1.9.2 through 1.9.2-136, and 1.9.3dev allows local users to delete arbitrary files via a symlink attack. El método FileUtils.remove_entry_secure de Ruby 1.8.6 hasta la versión 1.8.6-420, 1.8.7 hasta la 1.8.7-330, 1.8.8dev, 1.9.1 hasta la 1.9.1-430, 1.9.2 hasta la 1.9.2-136 y 1.9.3dev permite a usuarios locales borrar archivos de su elección a través de un enlace de ataque simbólico ("symlink attack"). • http://lists.apple.com/archives/security-announce/2012/May/msg00001.html http://lists.fedoraproject.org/pipermail/package-announce/2011-March/054422.html http://lists.fedoraproject.org/pipermail/package-announce/2011-March/054436.html http://osvdb.org/70958 http://secunia.com/advisories/43434 http://secunia.com/advisories/43573 http://support.apple.com/kb/HT5281 http://www.mandriva.com/security/advisories?name=MDVSA-2011:097 http://www.openwall.com/lists/oss-security/2011/02/21/2 h • CWE-59: Improper Link Resolution Before File Access ('Link Following') •

CVSS: 5.0EPSS: 1%CPEs: 5EXPL: 1

CVE-2011-1005 – Ruby: Untrusted codes able to modify arbitrary strings

https://notcve.org/view.php?id=CVE-2011-1005

The safe-level feature in Ruby 1.8.6 through 1.8.6-420, 1.8.7 through 1.8.7-330, and 1.8.8dev allows context-dependent attackers to modify strings via the Exception#to_s method, as demonstrated by changing an intended pathname. La funcionalidad safe-level de Ruby 1.8.6 hasta la versión 1.8.6-420, 1.8.7 hasta la 1.8.7-330 y 1.8.8dev permite a atacantes, dependiendo del contexto, modificar cadenas de texto a través del método Exception#to_s method, como se ha demostrado cambiando el pathname previsto. • http://lists.apple.com/archives/security-announce/2012/May/msg00001.html http://lists.fedoraproject.org/pipermail/package-announce/2011-March/054422.html http://lists.fedoraproject.org/pipermail/package-announce/2011-March/054436.html http://osvdb.org/70957 http://secunia.com/advisories/43420 http://secunia.com/advisories/43573 http://support.apple.com/kb/HT5281 http://www.mandriva.com/security/advisories?name=MDVSA-2011:097 http://www.mandriva.com/security/advisories?name=MDVSA-2011:098 h • CWE-264: Permissions, Privileges, and Access Controls •

CVSS: 7.2EPSS: 0%CPEs: 15EXPL: 0

CVE-2010-2489

https://notcve.org/view.php?id=CVE-2010-2489

Buffer overflow in Ruby 1.9.x before 1.9.1-p429 on Windows might allow local users to gain privileges via a crafted ARGF.inplace_mode value that is not properly handled when constructing the filenames of the backup files. Desbordamiento de búfer en Ruby v1.9.x anterior v1.9.1-p429 en Windows puede permitir a usuarios locales ganar privilegios mediante un valor ARGF.inplace_mode manipulado que no es correctamente manejado cuando construye los nombres de archivos de los ficheros backup • http://osdir.com/ml/ruby-talk/2010-07/msg00095.html http://secunia.com/advisories/40442 http://svn.ruby-lang.org/repos/ruby/tags/v1_9_1_429/ChangeLog http://svn.ruby-lang.org/repos/ruby/tags/v1_9_2_rc1/ChangeLog http://www.openwall.com/lists/oss-security/2010/07/02/1 http://www.openwall.com/lists/oss-security/2010/07/02/10 http://www.osvdb.org/66040 http://www.ruby-lang.org/en/news/2010/07/02/ruby-1-9-1-p429-is-released http:// • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer •