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CVSS: 7.8EPSS: 9%CPEs: 39EXPL: 0

Some HTTP/2 implementations are vulnerable to window size manipulation and stream prioritization manipulation, potentially leading to a denial of service. The attacker requests a large amount of data from a specified resource over multiple streams. They manipulate window size and stream priority to force the server to queue the data in 1-byte chunks. Depending on how efficiently this data is queued, this can consume excess CPU, memory, or both. Algunas implementaciones de HTTP / 2 son vulnerables a la manipulación del tamaño de la ventana y la manipulación de priorización de flujo, lo que puede conducir a una denegación de servicio. • http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00031.html http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00032.html http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00035.html http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00003.html http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00005.html http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00014.html https://access.redhat.com/errata/RHSA-2019:2692 https:/ • CWE-400: Uncontrolled Resource Consumption CWE-770: Allocation of Resources Without Limits or Throttling •

CVSS: 7.8EPSS: 0%CPEs: 8EXPL: 1

An issue was discovered in net/ipv6/ip6mr.c in the Linux kernel before 4.11. By setting a specific socket option, an attacker can control a pointer in kernel land and cause an inet_csk_listen_stop general protection fault, or potentially execute arbitrary code under certain circumstances. The issue can be triggered as root (e.g., inside a default LXC container or with the CAP_NET_ADMIN capability) or after namespace unsharing. This occurs because sk_type and protocol are not checked in the appropriate part of the ip6_mroute_* functions. NOTE: this affects Linux distributions that use 4.9.x longterm kernels before 4.9.187. • http://packetstormsecurity.com/files/154059/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=99253eb750fda6a644d5188fb26c43bad8d5a745 https://github.com/torvalds/linux/commit/99253eb750fda6a644d5188fb26c43bad8d5a745 https://lists.debian.org/debian-lts-announce/2019/08/msg00016.html https://lists.debian.org/debian-lts-announce/2019/08/msg00017.html https://lists.openwall.net/netdev/2017/12/04/40 https://pulsesecurity.co.nz/ad • CWE-20: Improper Input Validation •

CVSS: 7.8EPSS: 82%CPEs: 55EXPL: 0

Some HTTP/2 implementations are vulnerable to a reset flood, potentially leading to a denial of service. The attacker opens a number of streams and sends an invalid request over each stream that should solicit a stream of RST_STREAM frames from the peer. Depending on how the peer queues the RST_STREAM frames, this can consume excess memory, CPU, or both. Algunas implementaciones de HTTP / 2 son vulnerables a una inundación de reinicio, lo que puede conducir a una denegación de servicio. El atacante abre una serie de secuencias y envía una solicitud no válida sobre cada secuencia que debería solicitar una secuencia de tramas RST_STREAM del par. • http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00076.html http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00002.html http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00011.html http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00021.html http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00031.html http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00032.html http://lists.opensuse.org/opensuse-security-announce/2019-09 • CWE-400: Uncontrolled Resource Consumption CWE-770: Allocation of Resources Without Limits or Throttling •

CVSS: 6.5EPSS: 1%CPEs: 11EXPL: 0

In ImageMagick 7.x before 7.0.8-41 and 6.x before 6.9.10-41, there is a divide-by-zero vulnerability in the MeanShiftImage function. It allows an attacker to cause a denial of service by sending a crafted file. En ImageMagick versiones 7.x anteriores a 7.0.8-41 y versiones 6.x anteriores a 6.9.10-41, hay una vulnerabilidad de división por cero en la función MeanShiftImage. Permite a un atacante causar una denegación de servicio mediante el envío de un archivo especialmente diseñado. • http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00040.html http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00042.html https://github.com/ImageMagick/ImageMagick/commit/a77d8d97f5a7bced0468f0b08798c83fb67427bc https://github.com/ImageMagick/ImageMagick/issues/1552 https://github.com/ImageMagick/ImageMagick6/commit/b522d2d857d2f75b659936b59b0da9df1682c256 https://lists.debian.org/debian-lts-announce/2019/10/msg00028.html https://lists.debian.org/debian-lts-announce/2020/08/msg00030.html https:// • CWE-369: Divide By Zero •

CVSS: 7.1EPSS: 0%CPEs: 15EXPL: 1

When PHP EXIF extension is parsing EXIF information from an image, e.g. via exif_read_data() function, in PHP versions 7.1.x below 7.1.31, 7.2.x below 7.2.21 and 7.3.x below 7.3.8 it is possible to supply it with data what will cause it to read past the allocated buffer. This may lead to information disclosure or crash. Cuando la extensión EXIF de PHP está analizando información EXIF de una imagen, p.ej. por medio de la función exif_read_data(), en PHP versiones 7.1.x anteriores a 7.1.31, versiones 7.2.x anteriores a 7.2.21 y versiones 7.3.x anteriores a 7.3.8, es posible suministrarle datos que harán que se lea más allá del búfer asignado . Esto puede conllevar a la divulgación de información o bloqueo. • http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00019.html http://seclists.org/fulldisclosure/2019/Oct/15 http://seclists.org/fulldisclosure/2019/Oct/55 https://access.redhat.com/errata/RHSA-2019:3299 https://bugs.php.net/bug.php?id=78256 https://lists.debian.org/debian-lts-announce/2019/08/msg00010.html https://seclists.org/bugtraq/2019/Oct/9 https://seclists.org/bugtraq/2019/Sep/35 https://seclists.org/bugtraq/2019/Sep/38 https://security.netapp • CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') CWE-125: Out-of-bounds Read •