CVE-2017-2894

CVE-2017-2894 describes an exploitable stack buffer overflow in Cesanta Mongoose 6.8, specifically in the MQTT SUBSCRIBE handling. The root cause is in mg_mqtt_broker_handle_subscribe where a fixed-size qoss buffer (512) is filled without bounds checks, allowing a SUBSCRIBE packet with many topic...

CVE-2017-2895

An exploitable arbitrary memory read vulnerability exists in the MQTT packet parsing functionality of Cesanta Mongoose 6.8. A specially crafted MQTT SUBSCRIBE packet can cause an arbitrary out-of-bounds memory read potentially resulting in information disclosure and denial of service. An attacker...

CVE-2017-2921

Cesanta Mongoose 6.8 Websocket implementation contains a memory corruption flaw in websocket frame handling. During parsing, an integer overflow in data_len/frame_len calculations can cause a large, misvalidated memory write in mg_deliver_websocket_data, leading to a heap-buffer-overflow. Reporte...

CVE-2017-2909

CVE-2017-2909 affects Cesanta Mongoose 6.8 library’s DNS server functionality. A crafted DNS query/response can trigger an infinite loop in DNS name compression handling, causing high CPU usage and a Denial of Service when sent over the network. Connected advisories describe the issue but do not ...

CVE-2017-2893

CVE-2017-2893 affects Cesanta Mongoose 6.8 (MQTT server component). The vulnerability is a NULL pointer dereference in the MQTT SUBSCRIBE handling path (mg_mqtt_broker_handle_subscribe) caused by dereferencing an uninitialized or NULL session pointer (nc->user_data) when processing SUBSCRIBE t...

CVE-2017-2894

An exploitable stack buffer overflow vulnerability exists in the MQTT packet parsing functionality of Cesanta Mongoose 6.8. A specially crafted MQTT SUBSCRIBE packet can cause a stack buffer overflow resulting in remote code execution. An attacker needs to send a specially crafted MQTT packet ove...

CVE-2017-2891

An exploitable use-after-free vulnerability exists in the HTTP server implementation of Cesanta Mongoose 6.8. An ordinary HTTP POST request with a CGI target can cause a reuse of previously freed pointer potentially resulting in remote code execution. An attacker needs to send this HTTP request...

CVE-2017-2895

An exploitable arbitrary memory read vulnerability exists in the MQTT packet parsing functionality of Cesanta Mongoose 6.8. A specially crafted MQTT SUBSCRIBE packet can cause an arbitrary out-of-bounds memory read potentially resulting in information disclosure and denial of service. An attacker...

CVE-2017-2921

An exploitable memory corruption vulnerability exists in the Websocket protocol implementation of Cesanta Mongoose 6.8. A specially crafted websocket packet can cause an integer overflow, leading to a heap buffer overflow and resulting in denial of service and potential remote code execution. An...

Cesanta Mongoose MQTT Remote Code Execution Vulnerability

Cesanta Mongoose is a suite of embedded servers from Cesanta, Ireland. A remote code execution vulnerability exists in the MQTT packet parsing feature in Cesanta Mongoose version 6.8. An attacker can exploit this vulnerability by sending specially crafted MQTT packets to obtain information, cause...

Cesanta Mongoose HTTP Server Remote Code Execution Vulnerability

Cesanta Mongoose is a suite of embedded servers from Cesanta, Ireland. A remote code execution vulnerability exists in the HTTP server implementation in Cesanta Mongoose version 6.8. A remote attacker could exploit this vulnerability by sending an HTTP request to execute code...

Cesanta Mongoose MQTT Denial of Service Vulnerability

Cesanta Mongoose is a suite of embedded servers from Cesanta, Ireland. A denial of service vulnerability exists in the MQTT packet parsing feature in Cesanta Mongoose version 6.8. An attacker can exploit this vulnerability to cause a denial of service null pointer backreference and server crash b...

Cesanta Mongoose MQTT Remote Code Execution Vulnerability (CNVD-2017-33389)

Cesanta Mongoose is a suite of embedded servers from Cesanta, Ireland. A remote code execution vulnerability exists in the MQTT packet parsing feature in Cesanta Mongoose version 6.8. A remote attacker can exploit this vulnerability by sending specially crafted MQTT packets to execute code...

Cesanta Mongoose Remote Code Execution Vulnerability

Cesanta Mongoose is a set of embedded servers from the Irish company Cesanta. websocket protocol is one of the websocket communication protocols. A remote code execution vulnerability exists in the Websocket protocol implementation in Cesanta Mongoose version 6.8. A remote attacker can exploit th...

Cesanta Mongoose Remote Code Execution Vulnerability

Cesanta Mongoose is a set of embedded servers from the Irish company Cesanta. websocket protocol is one of the websocket communication protocols. A remote code execution vulnerability exists in the Websocket protocol implementation in Cesanta Mongoose version 6.8. A remote attacker can exploit th...

Cesanta Mongoose Denial of Service Vulnerability

Cesanta Mongoose is a suite of embedded servers from Cesanta, Ireland. A denial of service vulnerability exists in the DNS server functionality in Cesanta Mongoose version 6.8. An attacker can cause a denial of service via a specially crafted DNS request that results in high CPU utilization...

Cesanta Mongoose MQTT Information Disclosure Vulnerability

Cesanta Mongoose is a suite of embedded servers from Cesanta, Ireland. An information disclosure vulnerability exists in the MQTT packet parsing feature in Cesanta Mongoose version 6.8. An attacker can exploit this vulnerability by sending specially crafted MQTT packets to obtain information or...

Vulnerability Spotlight: Multiple Vulnerabilities in Cesanta Mongoose Server

These vulnerabilities were discovered by Aleksandar Nikolic of Cisco TalosToday, Talos is disclosing several vulnerabilities that have been identified in Cesanta Mongoose server. Cesanta Mongoose is a library implementing a number of networking protocols, including HTTP, MQTT, MDNS and others. It...

Cesanta Mongoose DNS Query Compressed Name Pointer Denial Of Service

Summary An infinite loop programming error exists in the DNS server functionality of Cesanta Mongoose 6.8 library. A specially crafted DNS request can cause an infinite loop resulting in high CPU usage and Denial Of Service. An attacker can send a packet over network to trigger this vulnerability...

Cesanta Mongoose MQTT Payload Length Remote Code Execution

Summary An exploitable arbitrary memory read vulnerability exists in the MQTT packet parsing functionality of Cesanta Mongoose 6.8. A specially crafted MQTT packet can cause an arbitrary out-of-bounds memory read and write potentially resulting in information disclosure, denial of service and...