CVE-2019-9748
Last modified
CVE-2019-9748 is a vulnerability of currently unknown severity. 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. EPSS estimates a 2.42% chance of exploitation in the next 30 days.
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."
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Tinysvcmdns Project | Tinysvcmdns | <= 2018-01-16 |
References
- https://bitbucket.org/geekman/tinysvcmdns/issues/10/arbitrary-memory-read-while-parsingExploit, Third Party Advisory
- https://bitbucket.org/geekman/tinysvcmdns/issues/10/arbitrary-memory-read-while-parsingExploit, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
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