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CVSS: 9.8EPSS: 2%CPEs: 7EXPL: 0

09 Sep 2017 — The IEEE 802.11 parser in tcpdump before 4.9.2 has a buffer over-read in print-802_11.c:parse_elements(). El analizador sintáctico IEEE 802.11 en tcpdump en versiones anteriores a la 4.9.2 tiene una vulnerabilidad de sobrelectura de búfer en print-802_11.c:parse_elements(). Wilfried Kirsch discovered a buffer overflow in the SLIP decoder in tcpdump. A remote attacker could use this to cause a denial of service or possibly execute arbitrary code. Bhargava Shastry discovered a buffer overflow in the bitfield ... • http://www.debian.org/security/2017/dsa-3971 • CWE-125: Out-of-bounds Read •

CVSS: 9.8EPSS: 11%CPEs: 13EXPL: 1

31 Aug 2017 — 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' ... • http://blog.rubygems.org/2017/08/27/2.6.13-released.html • 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: 7.5EPSS: 12%CPEs: 13EXPL: 1

31 Aug 2017 — 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 spec... • http://blog.rubygems.org/2017/08/27/2.6.13-released.html • CWE-20: Improper Input Validation CWE-138: Improper Neutralization of Special Elements •

CVSS: 7.5EPSS: 18%CPEs: 16EXPL: 3

31 Aug 2017 — 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 outs... • https://packetstorm.news/files/id/143993 • 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: 8.1EPSS: 6%CPEs: 16EXPL: 2

31 Aug 2017 — 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 respon... • http://blog.rubygems.org/2017/08/27/2.6.13-released.html • 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: 9.8EPSS: 1%CPEs: 29EXPL: 1

31 Aug 2017 — 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 ... • http://www.securityfocus.com/bid/100890 • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer CWE-200: Exposure of Sensitive Information to an Unauthorized Actor •

CVSS: 7.5EPSS: 2%CPEs: 13EXPL: 0

11 Aug 2017 — Mercurial prior to version 4.3 is vulnerable to a missing symlink check that can malicious repositories to modify files outside the repository Las versiones anteriores a la 4.3 de Mercurial son vulnerables a una falta de comprobación de symlink. Los repositorios maliciosos pueden aprovecharse de esto para modificar archivos fuera del repositorio. A vulnerability was found in the way Mercurial handles path auditing and caches the results. An attacker could abuse a repository with a series of commits mixing s... • http://www.debian.org/security/2017/dsa-3963 • CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') CWE-59: Improper Link Resolution Before File Access ('Link Following') •

CVSS: 10.0EPSS: 3%CPEs: 13EXPL: 0

11 Aug 2017 — Mercurial prior to 4.3 did not adequately sanitize hostnames passed to ssh, leading to possible shell-injection attacks. Las versiones anteriores a la 4.3 de Mercurial no sanitizaban adecuadamente los nombres de host pasados a ssh, lo que conducía a posibles ataques de inyección de shell. A shell command injection flaw related to the handling of "ssh" URLs has been discovered in Mercurial. This can be exploited to execute shell commands with the privileges of the user running the Mercurial client, for examp... • http://www.debian.org/security/2017/dsa-3963 • CWE-20: Improper Input Validation CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') •

CVSS: 7.8EPSS: 0%CPEs: 26EXPL: 0

10 Aug 2017 — Linux kernel: heap out-of-bounds in AF_PACKET sockets. This new issue is analogous to previously disclosed CVE-2016-8655. In both cases, a socket option that changes socket state may race with safety checks in packet_set_ring. Previously with PACKET_VERSION. This time with PACKET_RESERVE. • http://www.debian.org/security/2017/dsa-3981 • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') CWE-787: Out-of-bounds Write •

CVSS: 7.5EPSS: 5%CPEs: 25EXPL: 0

26 Jul 2017 — qemu-nbd in QEMU (aka Quick Emulator) does not ignore SIGPIPE, which allows remote attackers to cause a denial of service (daemon crash) by disconnecting during a server-to-client reply attempt. qemu-nbd en QEMU (Quick Emulator) no ignora la señal SIGPIPE, lo que permite a atacantes remotos provocar una denegación de servicio desconectando el proceso durante un intento de respuesta de servidor a cliente. Quick Emulator (QEMU) built with the Network Block Device (NBD) Server support is vulnerable to a crash ... • http://www.debian.org/security/2017/dsa-3920 • CWE-248: Uncaught Exception •