Description
In tinysvcmdns through 2018-01-16, an mDNS server processing a crafted packet can perform arbitrary data read operations up to 16383 bytes from the start of the buffer. This can lead to a segmentation fault in uncompress_nlabel in mdns.c and a crash of the server (depending on the memory protection of the CPU and the operating system), or disclosure of memory content via error messages or a server response. 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 (1)
Core 1
Core References
Exploit, Third Party Advisory x_refsource_misc
https://bitbucket.org/geekman/tinysvcmdns/issues/10/arbitrary-memory-read-while-parsing
Scores
CVSS v3
9.1
EPSS
0.0051
EPSS Percentile
66.5%
Attack Vector
NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Details
CWE
CWE-125
Status
published
Products (1)
tinysvcmdns_project/tinysvcmdns
< 2018-01-16
Published
Mar 13, 2019
Tracked Since
Feb 18, 2026