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."
References
Link | Resource |
---|---|
https://bitbucket.org/geekman/tinysvcmdns/issues/11/denial-of-service-vulnerability-infinite | Exploit Third Party Advisory |
Configurations
History
No history.
Information
Published : 2019-03-13 19:29
Updated : 2024-02-04 20:20
NVD link : CVE-2019-9747
Mitre link : CVE-2019-9747
CVE.ORG link : CVE-2019-9747
JSON object : View
Products Affected
tinysvcmdns_project
- tinysvcmdns
CWE
CWE-835
Loop with Unreachable Exit Condition ('Infinite Loop')