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 |
History
No history.
MITRE Information
Status: PUBLISHED
Assigner: mitre
Published: 2022-10-03T16:19:40
Updated: 2022-10-03T16:19:40
Reserved: 2022-10-03T00:00:00
Link: CVE-2019-9747
JSON object: View
NVD Information
Status : Analyzed
Published: 2019-03-13T19:29:00.207
Modified: 2020-08-24T17:37:01.140
Link: CVE-2019-9747
JSON object: View
Redhat Information
No data.
CWE