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
Published Mar 13, 2019
9.1
CRITICALCVSS 3.0
EPSS 2.42%
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."
Affected products
No data.
- ≤ 2018-01-16
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
AV:N/AC:L/Au:N/C:C/I:N/A:C
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Table of values (14 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.42% (0.02418) | 83.56th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.42% (0.02418) | 81.96th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.27% (0.00272) | 68.29th | v3 (v2023.03.01) |
| Apr 25, 2024 | 0.27% (0.00272) | 67.57th | v3 (v2023.03.01) |
| Mar 15, 2024 | 0.24% (0.00242) | 63.55th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.23% (0.00226) | 59.87th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.46% (0.00465) | 71.61th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.89% (0.00885) | 27.89th | v2 (v2022.01.01) |
| Apr 1, 2022 | 0.89% (0.00885) | 24.24th | v2 (v2022.01.01) |
| Feb 4, 2022 | 10.85% (0.10855) | 88.34th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.95% (0.01953) | 49.98th | v5 (v2026.06.15) |
| Jan 6, 2022 | 1.95% (0.01953) | 49.47th | v1 |
| Sep 1, 2021 | 0.44% (0.00442) | 27.73th | v1 |
| Apr 14, 2021 | 0.44% (0.00442) | 0.00th | v1 |
References (1)
- https://bitbucket.org/geekman/tinysvcmdns/issues/10/arbitrary-memory-read-while-parsing x_refsource_MISCExploitThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| https://bitbucket.org/geekman/tinysvcmdns/issues/10/arbitrary-memory-read-while-parsing | x_refsource_MISCExploitThird Party Advisory |
Change history (0)
No recorded changes yet.