CVE-2019-18934

high

Description

Unbound 1.6.4 through 1.9.4 contain a vulnerability in the ipsec module that can cause shell code execution after receiving a specially crafted answer. This issue can only be triggered if unbound was compiled with `--enable-ipsecmod` support, and ipsecmod is enabled and used in the configuration.

References

Advisories
More

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MOCR6JP7MSRARTOGEHGST64G4FJGX5VK/

http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00069.html

http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00067.html

https://www.nlnetlabs.nl/news/2019/Nov/19/unbound-1.9.5-released/

https://www.nlnetlabs.nl/downloads/unbound/CVE-2019-18934.txt

https://github.com/NLnetLabs/unbound/blob/release-1.9.5/doc/Changelog

https://euvd.enisa.europa.eu/vulnerability/EUVD-2019-8607

http://www.openwall.com/lists/oss-security/2019/11/19/1

Details

Source: Mitre, NVD

Published: 2019-11-19

Updated: 2026-06-17

Risk Information

CVSS v2

Base Score: 6.8

Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P

Severity: Medium

CVSS v3

Base Score: 7.3

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Severity: High

EPSS

EPSS: 0.03197