CVE-2019-9748 - CVE House
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Status published Critical CVE-2019-9748

In tinysvcmdns through 2018-01-16, an mDNS server processing a crafted...

Vulnerability 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."

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

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CVE-2019-9747
In tinysvcmdns through 2018-01-16, a maliciously crafted mDNS (Multicast DNS)...
High 7.5

Affected Vendor

tinysvcmdns project

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Affected Software

tinysvcmdns
Vulnerable Versions:
0

Timeline

Official Publish: March 13th, 2019
Last Modified: September 17th, 2024
Added to House: July 20th, 2026

CVSS Vectors

V3: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.