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CVSS: 7.5EPSS: 2%CPEs: 99EXPL: 0

01 Jan 2013 — The connection_edge_process_relay_cell function in or/relay.c in Tor before 0.2.3.25 maintains circuits even if an unexpected SENDME cell arrives, which might allow remote attackers to cause a denial of service (memory consumption or excessive cell reception rate) or bypass intended flow-control restrictions via a RELAY_COMMAND_SENDME command. La función connection_edge_process_relay_cell en o/relay.c en Tor antes de v0.2.3.25 mantiene circuitos incluso si llega una célula SendMe llega, lo que podría permit... • http://openwall.com/lists/oss-security/2012/11/26/11 • CWE-399: Resource Management Errors •

CVSS: 7.5EPSS: 1%CPEs: 95EXPL: 0

14 Sep 2012 — The compare_tor_addr_to_addr_policy function in or/policies.c in Tor before 0.2.2.39, and 0.2.3.x before 0.2.3.21-rc, allows remote attackers to cause a denial of service (assertion failure and daemon exit) via a zero-valued port field that is not properly handled during policy comparison. La función compare_tor_addr_to_addr_policy en or/policies.c en Tor antes de v0.2.2.39 y v0.2.3.x antes de v0.2.3.21-rc, permite a atacantes remotos provocar una denegación de servicio (error de aserción y salida del demon... • http://lists.fedoraproject.org/pipermail/package-announce/2012-September/088006.html •

CVSS: 7.5EPSS: 1%CPEs: 96EXPL: 0

14 Sep 2012 — The tor_timegm function in common/util.c in Tor before 0.2.2.39, and 0.2.3.x before 0.2.3.22-rc, does not properly validate time values, which allows remote attackers to cause a denial of service (assertion failure and daemon exit) via a malformed directory object, a different vulnerability than CVE-2012-4419. La función tor_timegm en común/util.c en Tor v0.2.2.39 antes, y antes de v0.2.3.x v0.2.3.22-rc, no valida correctamente los valores de tiempo, lo que permite a atacantes remotos provocar una denegació... • http://lists.fedoraproject.org/pipermail/package-announce/2012-September/088006.html • CWE-20: Improper Input Validation •

CVSS: 7.5EPSS: 1%CPEs: 1EXPL: 0

26 Aug 2012 — Use-after-free vulnerability in dns.c in Tor before 0.2.2.38 might allow remote attackers to cause a denial of service (daemon crash) via vectors related to failed DNS requests. Vulnerabilidad de liberación después de uso en dns.c en Tor anterior a 0.2.2.38 podría permitir a atacantes remotos causar una denegación de servicio (caída del demonio) a través de vectores relacionados con solicitudes fallidas de DNS. • http://lists.fedoraproject.org/pipermail/package-announce/2012-September/088006.html • CWE-399: Resource Management Errors •

CVSS: 6.5EPSS: 1%CPEs: 1EXPL: 0

26 Aug 2012 — The networkstatus_parse_vote_from_string function in routerparse.c in Tor before 0.2.2.38 does not properly handle an invalid flavor name, which allows remote attackers to cause a denial of service (out-of-bounds read and daemon crash) via a crafted (1) vote document or (2) consensus document. La función networkstatus_parse_vote_from_string en routerparse.c en Tor anterior a v0.2.2.38 no maneja adecuadamente un (flavor name), lo cual podría permitir a atacantes remotos causar una denegación de servicio (lec... • http://lists.opensuse.org/opensuse-updates/2012-08/msg00048.html • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer •

CVSS: 7.5EPSS: 0%CPEs: 1EXPL: 0

26 Aug 2012 — routerlist.c in Tor before 0.2.2.38 uses a different amount of time for relay-list iteration depending on which relay is chosen, which might allow remote attackers to obtain sensitive information about relay selection via a timing side-channel attack. routerlist.c en Tor anterior a v0.2.2.38 utiliza una cantidad diferente de tiempo para la iteración relay-list dependiendo de que (relay) sea elegido, lo cual podría permitir a atacantes remotos obtener información sensible sobre la selección del (relay) a tra... • http://lists.opensuse.org/opensuse-updates/2012-08/msg00048.html • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor •

CVSS: 7.5EPSS: 0%CPEs: 229EXPL: 0

23 Dec 2011 — Tor before 0.2.2.34, when configured as a client or bridge, sends a TLS certificate chain as part of an outgoing OR connection, which allows remote relays to bypass intended anonymity properties by reading this chain and then determining the set of entry guards that the client or bridge had selected. Tor, antes de v0.2.2.34, cuando se configura como cliente o bridge, envía una cadena de certificado TLS como parte de una conexión saliente OR, lo que permite a relays remotos evitar la anonimidad intencionada ... • http://www.debian.org/security/2011/dsa-2331 • CWE-264: Permissions, Privileges, and Access Controls •

CVSS: 7.5EPSS: 0%CPEs: 229EXPL: 0

23 Dec 2011 — Tor before 0.2.2.34, when configured as a bridge, accepts the CREATE and CREATE_FAST values in the Command field of a cell within an OR connection that it initiated, which allows remote relays to enumerate bridges by using these values. Tor antes de v0.2.2.34, cuando se configura como bridge, acepta los valores CREATE y CREATE_FAST en el campo Command de una conexión OR que inicializa, lo que permite a relays remotos enumerar bridges usando esos valores. • http://www.debian.org/security/2011/dsa-2331 • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor •

CVSS: 9.8EPSS: 5%CPEs: 230EXPL: 0

23 Dec 2011 — Multiple heap-based buffer overflows in Tor before 0.2.2.35 allow remote attackers to cause a denial of service (memory corruption) or possibly execute arbitrary code by (1) establishing a SOCKS connection to SocksPort or (2) leveraging a SOCKS proxy configuration. Múltiples desbordamientos de buffer de memoria dinámica en versiones anteriores a v0.2.2.35 de Tor que permite a atacantes remotos causar una denegación de servicio (corrupción de memoria) o una posible ejecución de código de su elección mediante... • http://www.debian.org/security/2011/dsa-2363 • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer •

CVSS: 5.3EPSS: 0%CPEs: 229EXPL: 0

23 Dec 2011 — Tor before 0.2.2.34, when configured as a bridge, uses direct DirPort access instead of a Tor TLS connection for a directory fetch, which makes it easier for remote attackers to enumerate bridges by observing DirPort connections. Las versiones de Tor anteriores a v0.2.2.34, cuando son configuradas en modo puente, utilizan el acceso directo a DirPort en vez de una conexión TLS a Tor para un directorio localizado, lo cual puede provocar que un atacante remoto pueda obtener una lista de los puentes por medio d... • https://blog.torproject.org/blog/tor-02234-released-security-patches • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor •