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CVSS: 7.5EPSS: 0%CPEs: 23EXPL: 0

On QFX and PTX Series, receipt of a malformed packet for J-Flow sampling might crash the FPC (Flexible PIC Concentrator) process which causes all interfaces to go down. By continuously sending the offending packet, an attacker can repeatedly crash the FPC process causing a sustained Denial of Service (DoS). This issue affects both IPv4 and IPv6 packet processing. Affected releases are Juniper Networks Junos OS on QFX and PTX Series: 17.4 versions prior to 17.4R2-S1, 17.4R3; 18.1 versions prior to 18.1R3-S1; 18.2 versions prior to 18.2R1-S3, 18.2R2; 17.2X75 versions prior to 17.2X75-D91, 17.2X75-D100. En las series QFX y PTX, la recepción de un paquete mal formado para el muestreo de J-Flow podría provocar el cierre inesperado del proceso FPC (Flexible PIC Concentrator), que provoca que todas las interfaces se caigan. • http://www.securityfocus.com/bid/106556 https://kb.juniper.net/JSA10914 • CWE-19: Data Processing Errors •

CVSS: 7.5EPSS: 0%CPEs: 459EXPL: 2

An issue was discovered in Embedthis GoAhead before 4.0.1 and Appweb before 7.0.2. The server mishandles some HTTP request fields associated with time, which results in a NULL pointer dereference, as demonstrated by If-Modified-Since or If-Unmodified-Since with a month greater than 11. Se ha descubierto un problema en Embedthis GoAhead en versiones anteriores a la 4.0.1 y Appweb anteriores a la 7.0.2. El servidor maneja incorrectamente algunos campos request HTTP asociados con time, lo que resulta en una desreferencia de puntero NULL, tal y como queda demostrado con If-Modified-Since o If-Unmodified-Since con mes mayor a 11. • https://github.com/embedthis/appweb/commit/66067ae6d1fa08b37a270e7dc1821df52ed2daef https://github.com/embedthis/appweb/issues/605 https://github.com/embedthis/goahead/issues/264 https://supportportal.juniper.net/s/article/2019-07-Security-Bulletin-Junos-OS-J-Web-Denial-of-Service-due-to-multiple-vulnerabilities-in-Embedthis-Appweb-Server https://supportportal.juniper.net/s/article/2021-07-Security-Bulletin-Junos-OS-Multiple-J-Web-vulnerabilities-resolved • CWE-476: NULL Pointer Dereference •

CVSS: 5.0EPSS: 6%CPEs: 460EXPL: 3

Embedthis Appweb before 4.6.6 and 5.x before 5.2.1 allows remote attackers to cause a denial of service (NULL pointer dereference) via a Range header with an empty value, as demonstrated by "Range: x=,". Embedthis Appweb anterior a 4.6.6 y 5.x anterior a 5.2.1 permite a atacantes remotos causar una denegación de servicio (referencia a puntero nulo) a través de una cabecera de rango con un valor vacío, tal y como fue demostrado por 'Rango: x=,'. Appweb Web Server suffers from a denial of service vulnerability. • http://packetstormsecurity.com/files/131157/Appweb-Web-Server-Denial-Of-Service.html http://seclists.org/fulldisclosure/2015/Apr/19 http://seclists.org/fulldisclosure/2015/Mar/158 http://www.openwall.com/lists/oss-security/2015/03/28/2 http://www.openwall.com/lists/oss-security/2015/04/06/2 http://www.oracle.com/technetwork/security-advisory/cpujul2016-2881720.html http://www.securityfocus.com/archive/1/535028/100/0/threaded http://www.securityfocus.com/archive/1/archive/1/5 • CWE-476: NULL Pointer Dereference •