CVE-2019-13952
The set_ipv6() function in zscan_rfc1035.rl in gdnsd 3.2.0 has a stack-based buffer overflow via...
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2019-13952- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 7.5 High
AV:N/AC:L/Au:N/C:P/I:P/A:P - Weakness
- CWE-787
- Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2019-13952- Updated
- 2026-11-02
EUVDEUVD-2019-5219 No score
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.
- Record
EUVD-2019-5219- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-mvpw-pvf4-394c
The set_ipv6() function in zscan_rfc1035.rl in gdnsd 3.2.0 has a stack-based buffer overflow via...
The set_ipv6() function in zscan_rfc1035.rl in gdnsd 3.2.0 has a stack-based buffer overflow via a long and malformed IPv6 address in zone data.
- Record
GHSA-mvpw-pvf4-394c- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-787
- Updated
- 2026-11-02
OSVALPINE-CVE-2019-13952
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.
- Record
ALPINE-CVE-2019-13952- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-03
OSV
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.
- Record
CVE-2019-13952- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVDEBIAN-CVE-2019-13952
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.
- Record
DEBIAN-CVE-2019-13952- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVUBUNTU-CVE-2019-13952
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.
- Record
UBUNTU-CVE-2019-13952- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
gdnsdAlpine:v3.14 |
3.0.0 up to 2.4.3-r0 | 2.4.3-r0 |
gdnsdAlpine:v3.15 |
3.0.0 up to 2.4.3-r0 | 2.4.3-r0 |
gdnsdAlpine:v3.16 |
3.0.0 up to 2.4.3-r0 | 2.4.3-r0 |
gdnsdAlpine:v3.17 |
3.0.0 up to 2.4.3-r0 | 2.4.3-r0 |
gdnsdAlpine:v3.18 |
3.0.0 up to 2.4.3-r0 | 2.4.3-r0 |
gdnsdAlpine:v3.19 |
3.0.0 up to 2.4.3-r0 | 2.4.3-r0 |
gdnsdAlpine:v3.20 |
3.0.0 up to 2.4.3-r0 | 2.4.3-r0 |
gdnsdAlpine:v3.21 |
3.0.0 up to 2.4.3-r0 | 2.4.3-r0 |
gdnsdAlpine:v3.22 |
3.0.0 up to 2.4.3-r0 | 2.4.3-r0 |
gdnsdAlpine:v3.23 |
3.0.0 up to 2.4.3-r0 | 2.4.3-r0 |
Show 7 moreShow less
| Package | Affected | Fixed |
|---|---|---|
gdnsdAlpine:v3.24 |
3.0.0 up to 2.4.3-r0 | 2.4.3-r0 |
gdnsdDebian:12 |
before 3.5.0-1 | 3.5.0-1 |
gdnsdDebian:13 |
before 3.5.0-1 | 3.5.0-1 |
gdnsdDebian:14 |
before 3.5.0-1 | 3.5.0-1 |
gdnsdUbuntu:16.04:LTS |
All versions, plus listed versions 2.1.2-12.2.0-1ubuntu1 |
None known |
gdnsdUbuntu:18.04:LTS |
All versions, plus listed versions 2.2.4-1build22.3.0-1 |
None known |
gdnsdUbuntu:20.04:LTS |
All versions, plus listed versions 2.4.2-1 |
None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, aliases, references | OSV | |
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2019-13952 is a critical vulnerability (CVSS 9.8) in Gdnsd, published July 18, 2019. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.56%, the 75th percentile. Fixed in gdnsd 2.4.3-r0.