CVSS: 7.5EPSS: 0%CPEs: 122EXPL: 0CVE-2020-1679 – Junos OS: PTX/QFX Series: Kernel Routing Table (KRT) queue stuck after packet sampling a malformed packet when the tunnel-observation mpls-over-udp configuration is enabled.
https://notcve.org/view.php?id=CVE-2020-1679
On Juniper Networks PTX and QFX Series devices with packet sampling configured using tunnel-observation mpls-over-udp, sampling of a malformed packet can cause the Kernel Routing Table (KRT) queue to become stuck. KRT is the module within the Routing Process Daemon (RPD) that synchronized the routing tables with the forwarding tables in the kernel. This table is then synchronized to the Packet Forwarding Engine (PFE) via the KRT queue. Thus, when KRT queue become stuck, it can lead to unexpected packet forwarding issues. An administrator can monitor the following command to check if there is the KRT queue is stuck: user@device > show krt state ... • https://kb.juniper.net/JSA11076 • CWE-20: Improper Input Validation •
CVSS: 7.8EPSS: 0%CPEs: 63EXPL: 0CVE-2020-1617 – Junos OS: PTX1000 and PTX10000 Series, QFX10000 Series using non-AFT architectures: A specific genuine packet inspected by sFlow will cause a reboot.
https://notcve.org/view.php?id=CVE-2020-1617
This issue occurs on Juniper Networks Junos OS devices which do not support Advanced Forwarding Interface (AFI) / Advanced Forwarding Toolkit (AFT). Devices using AFI and AFT are not exploitable to this issue. An improper initialization of memory in the packet forwarding architecture in Juniper Networks Junos OS non-AFI/AFT platforms which may lead to a Denial of Service (DoS) vulnerability being exploited when a genuine packet is received and inspected by non-AFT/AFI sFlow and when the device is also configured with firewall policers. This first genuine packet received and inspected by sampled flow (sFlow) through a specific firewall policer will cause the device to reboot. After the reboot has completed, if the device receives and sFlow inspects another genuine packet seen through a specific firewall policer, the device will generate a core file and reboot. • https://github.com/Juniper/AFI https://kb.juniper.net/JSA11000 https://www.juniper.net/documentation/en_US/junos/topics/example/example-configuring-vpws-service-with-evpn-signaling-mechanisms.html • CWE-665: Improper Initialization •
CVSS: 7.5EPSS: 0%CPEs: 23EXPL: 0CVE-2019-0014 – Junos OS: QFX and PTX Series: FPC process crashes after J-Flow processes a malformed packet
https://notcve.org/view.php?id=CVE-2019-0014
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: 2CVE-2018-15504
https://notcve.org/view.php?id=CVE-2018-15504
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: 4%CPEs: 460EXPL: 3CVE-2014-9708 – Appweb Web Server Denial Of Service
https://notcve.org/view.php?id=CVE-2014-9708
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 •