Bug 1508837 (CVE-2017-2891, CVE-2017-2892, CVE-2017-2893, CVE-2017-2894, CVE-2017-2895, CVE-2017-2909, CVE-2017-2921, CVE-2017-2922)

CVE-2017-2892

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 remote code execution. An attacker needs to send a specially crafted MQTT packet over network to trigger this vulnerability.

https://www.talosintelligence.com/vulnerability_reports/TALOS-2017-0399

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 over network to trigger this vulnerability.

https://www.talosintelligence.com/vulnerability_reports/TALOS-2017-0398

CVE-2017-2909

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.

https://www.talosintelligence.com/vulnerability_reports/TALOS-2017-0416

CVE-2017-2922

An exploitable memory corruption vulnerability exists in the Websocket protocol implementation of Cesanta Mongoose 6.8. A specially crafted websocket packet can cause a buffer to be allocated while leaving stale pointers which leads to a use-after-free vulnerability which can be exploited to achieve remote code execution. An attacker needs to send a specially crafted websocket packet over network to trigger this vulnerability.

https://www.talosintelligence.com/vulnerability_reports/TALOS-2017-0429

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 resulting leading to heap buffer overflow resulting in denial of service and potential remote code execution. An attacker needs to send a specially crafted websocket packet over network to trigger this vulnerability.

https://www.talosintelligence.com/vulnerability_reports/TALOS-2017-0428

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 needs to send a specially crafted MQTT packet over the network to trigger this vulnerability.

https://www.talosintelligence.com/vulnerability_reports/TALOS-2017-0402

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 over the network to trigger this vulnerability.

https://www.talosintelligence.com/vulnerability_reports/TALOS-2017-0401

CVE-2017-2893

An exploitable NULL pointer dereference vulnerability exists in the MQTT packet parsing functionality of Cesanta Mongoose 6.8. An MQTT SUBSCRIBE packet can cause a NULL pointer dereference leading to server crash and denial of service. An attacker needs to send a specially crafted MQTT packet over the network to trigger this vulnerability.

https://www.talosintelligence.com/vulnerability_reports/TALOS-2017-0400