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."
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2019-03-13T19:00:00Z

Updated: 2024-09-16T22:25:09.752Z

Reserved: 2019-03-13T00:00:00Z

Link: CVE-2019-9747

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Analyzed

Published: 2019-03-13T19:29:00.207

Modified: 2020-08-24T17:37:01.140

Link: CVE-2019-9747

cve-icon Redhat

No data.