CVE-2019-9747

HighCVSS 7.5/10Last modified Jun 17, 2026

Description

In tinysvcmdns through 2018-01-16, a maliciously crafted mDNS (Multicast DNS) packet triggers an infinite loop while parsing an mDNS query. When mDNS compressed labels point to each other, the function uncompress_nlabel goes into an infinite loop trying to analyze the packet with an mDNS query. As a result, the mDNS server hangs after receiving the malicious mDNS packet. NOTE: the product's web site states "This project is un-maintained, and has been since 2013. ... There are known vulnerabilities ... You are advised to NOT use this library for any new projects / products."

Metrics

CVSS 3.0 7.5/10CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-835

Affected software

No affected versions have been published.

Timeline

Published
Mar 13, 2019
Last modified
Jun 17, 2026
NVD status
Modified

Related CVEs from 2019

CVE-2019-97489.1In tinysvcmdns through 2018-01-16, an mDNS server processing a crafted packet can perform arbitrary data read operations up to 16383 bytes fCVE-2019-97497.5An issue was discovered in the MQTT input plugin in Fluent Bit through 1.0.4. When this plugin acts as an MQTT broker (server), it mishandleCVE-2019-97509.1In IoTivity through 1.3.1, the CoAP server interface can be used for Distributed Denial of Service attacks using source IP address spoofing CVE-2019-97514.8An issue was discovered in Open Ticket Request System (OTRS) 6.x before 6.0.17 and 7.x before 7.0.5. An attacker who is logged into OTRS as CVE-2019-97525.4An issue was discovered in Open Ticket Request System (OTRS) 5.x before 5.0.34, 6.x before 6.0.16, and 7.x before 7.0.4. An attacker who is CVE-2019-97534.3An issue was discovered in Open Ticket Request System (OTRS) 7.x before 7.0.5. An attacker who is logged into OTRS as an agent or a customerCVE-2019-97545.5An issue was discovered in Tiny C Compiler (aka TinyCC or TCC) 0.9.27. Compiling a crafted source file leads to an 1 byte out of bounds writCVE-2019-97557.0An integer underflow issue exists in ntfs-3g 2017.3.23. A local attacker could potentially exploit this by running /bin/ntfs-3g with specialCVE-2019-97569.8An issue was discovered in GitLab Community and Enterprise Edition 10.x (starting from 10.8) and 11.x before 11.6.10, 11.7.x before 11.7.6, CVE-2019-97577.5An issue was discovered in LabKey Server 19.1.0. Sending an SVG containing an XXE payload to the endpoint visualization-exportImage.view or CVE-2019-97585.4An issue was discovered in LabKey Server 19.1.0. The display name of a user is vulnerable to stored XSS that can execute on administrators fCVE-2019-97599.8An issue was discovered in TONGDA Office Anywhere 10.18.190121. There is a SQL Injection vulnerability via the general/approve_center/list/i
CVE-2019-9747: High severity, CVSS 7.5 | Vulnix