Vulnerability CVE-2019-9748


Published: 2019-03-13

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."

Type:

CWE-125

(Out-of-bounds Read)

CVSS2 => (AV:N/AC:L/Au:N/C:C/I:N/A:C)

CVSS Base Score
Impact Subscore
Exploitability Subscore
9.4/10
9.2/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Complete
None
Complete
Affected software
Tinysvcmdns project -> Tinysvcmdns 

 References:
https://bitbucket.org/geekman/tinysvcmdns/issues/10/arbitrary-memory-read-while-parsing

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