CVE-2019-13952 json
The set_ipv6() function in zscan_rfc1035.rl in gdnsd before 2.4.3 and 3.x before 3.2.1 has a stack-based buffer overflow via a long and mal…
published 2019-07-18 7 y ago modified 2026-06-17 4 mo ago also EUVD-2019-5219
- cvss
- 9.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.6%
- EPSS 1.6% chance of exploitation in 30 days, percentile 75%
- public exploits
- 0
- none known
Summary
The set_ipv6() function in zscan_rfc1035.rl in gdnsd before 2.4.3 and 3.x before 3.2.1 has a stack-based buffer overflow via a long and malformed IPv6 address in zone data.
Patch / fix
- gdnsd gdnsd 2.4.3, 3.2.1
- gdnsd Debian 14, Debian 13, Debian 12 3.5.0-1
debian advisories DEBIAN-CVE-2019-13952
- gdnsd Alpine 3.24, Alpine 3.23, Alpine 3.22 +8 more 2.4.3-r0
alpine advisories ALPINE-CVE-2019-13952
Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0
- github.com/gdnsd/gdnsd/issues/185 advisory
Exploit prediction
1.56% chance of exploitation in the next 30 days, higher than 75% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/gdnsd/gdnsd/issues/185 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
Classification
- Weakness
-
- CWE-787 Out-of-bounds Write
References
-
github.com
/gdnsd/gdnsd/issues/185
exploit, patch, third-party-advisory
Sources
- CVE List CVE-2019-13952
- NVD CVE-2019-13952
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