CVSS: 7.5EPSS: 0%CPEs: 6EXPL: 1CVE-2017-9229 – oniguruma: Invalid pointer dereference in left_adjust_char_head()
https://notcve.org/view.php?id=CVE-2017-9229
An issue was discovered in Oniguruma 6.2.0, as used in Oniguruma-mod in Ruby through 2.4.1 and mbstring in PHP through 7.1.5. A SIGSEGV occurs in left_adjust_char_head() during regular expression compilation. Invalid handling of reg->dmax in forward_search_range() could result in an invalid pointer dereference, normally as an immediate denial-of-service condition. Se descubrió un problema en Oniguruma versión 6.2.0, como es usado en Oniguruma-mod en Ruby hasta versión 2.4.1 y mbstring en PHP hasta versión 7.1.5. Un SIGSEGV se produce en la función left_adjust_char_head() durante la compilación de expresiones regulares. • https://access.redhat.com/errata/RHSA-2018:1296 https://github.com/kkos/oniguruma/commit/b690371bbf97794b4a1d3f295d4fb9a8b05d402d https://github.com/kkos/oniguruma/issues/59 https://access.redhat.com/security/cve/CVE-2017-9229 https://bugzilla.redhat.com/show_bug.cgi?id=1466746 • CWE-476: NULL Pointer Dereference CWE-787: Out-of-bounds Write •
CVSS: 8.4EPSS: 0%CPEs: 14EXPL: 0CVE-2015-7551 – ruby: DL:: dlopen could open a library with tainted library name
https://notcve.org/view.php?id=CVE-2015-7551
The Fiddle::Handle implementation in ext/fiddle/handle.c in Ruby before 2.0.0-p648, 2.1 before 2.1.8, and 2.2 before 2.2.4, as distributed in Apple OS X before 10.11.4 and other products, mishandles tainting, which allows context-dependent attackers to execute arbitrary code or cause a denial of service (application crash) via a crafted string, related to the DL module and the libffi library. NOTE: this vulnerability exists because of a CVE-2009-5147 regression. La implementación Fiddle::Handle en ext/fiddle/handle.c en Ruby en versiones anteriores a 2.0.0-p648, 2.1 en versiones anteriores a 2.1.8 y 2.2 en versiones anteriores a 2.2.4, según se distribuye en Apple OS X en versiones anteriores a 10.11.4 y otros productos, no maneja correctamente el tainting, lo que permite a atacantes dependientes del contexto ejecutar código arbitrario o causar una denegación de servicio (caída de aplicación) a través de una cadena manipulada, relacionado con el módulo DL y la librería libffi. NOTA: esta vulnerabilidad existe por una regresión de CVE-2009-5147. • http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=796344 http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=796551 http://lists.apple.com/archives/security-announce/2016/Mar/msg00004.html http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html http://www.securityfocus.com/bid/76060 https://access.redhat.com/errata/RHSA-2018:0583 https://github.com/ruby/ruby/commit/339e11a7f178312d937b7c95dd3115ce7236597a https://people.canonical.com/~ubuntu-security/cve/2015/CVE-2015-7551.h • CWE-20: Improper Input Validation CWE-267: Privilege Defined With Unsafe Actions •
CVSS: 7.9EPSS: 0%CPEs: 42EXPL: 0CVE-2015-3900 – rubygems: DNS hijacking vulnerability in api_endpoint()
https://notcve.org/view.php?id=CVE-2015-3900
RubyGems 2.0.x before 2.0.16, 2.2.x before 2.2.4, and 2.4.x before 2.4.7 does not validate the hostname when fetching gems or making API requests, which allows remote attackers to redirect requests to arbitrary domains via a crafted DNS SRV record, aka a "DNS hijack attack." RubyGems 2.0.x en versiones anteriores a 2.0.16, 2.2.x en versiones anteriores a 2.2.4 y 2.4.x en versiones anteriores a 2.4.7 no valida el nombre de host al recuperar gemas o hacer solicitudes de API, lo que permite a atacantes remotos redireccionar peticiones a dominios arbitrarios a través del registro DNS SRV manipulado, también conocido como un "ataque de secuestro de DNS". A flaw was found in a way rubygems verified the API endpoint hostname retrieved through a DNS SRV record. A man-in-the-middle attacker could use this flaw to force a client to download content from an untrusted domain. • http://blog.rubygems.org/2015/05/14/CVE-2015-3900.html http://lists.fedoraproject.org/pipermail/package-announce/2015-August/163502.html http://lists.fedoraproject.org/pipermail/package-announce/2015-August/163600.html http://lists.fedoraproject.org/pipermail/package-announce/2015-August/164236.html http://rhn.redhat.com/errata/RHSA-2015-1657.html http://www.openwall.com/lists/oss-security/2015/06/26/2 http://www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.html http:// • CWE-254: 7PK - Security Features CWE-345: Insufficient Verification of Data Authenticity •
CVSS: 5.9EPSS: 2%CPEs: 19EXPL: 1CVE-2015-1855
https://notcve.org/view.php?id=CVE-2015-1855
verify_certificate_identity in the OpenSSL extension in Ruby before 2.0.0 patchlevel 645, 2.1.x before 2.1.6, and 2.2.x before 2.2.2 does not properly validate hostnames, which allows remote attackers to spoof servers via vectors related to (1) multiple wildcards, (1) wildcards in IDNA names, (3) case sensitivity, and (4) non-ASCII characters. La función Verified_certificate_identity en la extensión OpenSSL en Ruby versiones anteriores a 2.0.0 patchlevel 645, versiones 2.1.x anteriores a 2.1.6 y versiones 2.2.x anteriores 2.2.2, no comprueba apropiadamente los nombres de host, lo que permite a atacantes remotos falsificar servidores por medio de vectores relacionados con (1) múltiples wildcards, (1) wildcards en nombres IDNA, (3) sensibilidad a mayúsculas y minúsculas y (4) caracteres no ASCII. • https://github.com/vpereira/CVE-2015-1855 http://www.debian.org/security/2015/dsa-3245 http://www.debian.org/security/2015/dsa-3246 http://www.debian.org/security/2015/dsa-3247 https://bugs.ruby-lang.org/issues/9644 https://puppetlabs.com/security/cve/cve-2015-1855 https://www.ruby-lang.org/en/news/2015/04/13/ruby-openssl-hostname-matching-vulnerability • CWE-20: Improper Input Validation •