CVE-2019-18934

HighCVSS 7.3/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 7.3/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Weakness enumeration

CWE-78

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

References

http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00067.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00069.htmlMailing List, Third Party Advisory
http://www.openwall.com/lists/oss-security/2019/11/19/1Exploit, Mailing List, Third Party Advisory
https://github.com/NLnetLabs/unbound/blob/release-1.9.5/doc/ChangelogRelease Notes
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MOCR6JP7MSRARTOGEHGST64G4FJGX5VK/
https://www.nlnetlabs.nl/downloads/unbound/CVE-2019-18934.txtPatch, Vendor Advisory
https://www.nlnetlabs.nl/news/2019/Nov/19/unbound-1.9.5-released/Release Notes, Vendor Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00067.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00069.htmlMailing List, Third Party Advisory
http://www.openwall.com/lists/oss-security/2019/11/19/1Exploit, Mailing List, Third Party Advisory
https://github.com/NLnetLabs/unbound/blob/release-1.9.5/doc/ChangelogRelease Notes
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MOCR6JP7MSRARTOGEHGST64G4FJGX5VK/
https://www.nlnetlabs.nl/downloads/unbound/CVE-2019-18934.txtPatch, Vendor Advisory
https://www.nlnetlabs.nl/news/2019/Nov/19/unbound-1.9.5-released/Release Notes, Vendor Advisory

Timeline

Published: Nov 19, 2019
Last modified: Jun 17, 2026
NVD status: Modified

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