CVE-2019-25036

Summary

CVECVE-2019-25036
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2021-04-27 06:15:00 UTC
Updated2023-11-07 03:09:00 UTC
Description** DISPUTED ** Unbound before 1.9.5 allows an assertion failure and denial of service in synth_cname. NOTE: The vendor disputes that this is a vulnerability. Although the code may be vulnerable, a running Unbound installation cannot be remotely or locally exploited.

Risk And Classification

Problem Types: CWE-617

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Debian Debian Linux 9.0 All All All
Application Nlnetlabs Unbound All All All All

References

ReferenceSourceLinkTags
[SECURITY] [DLA 2652-1] unbound1.9 security update MLIST lists.debian.org
April 2021 Unbound Vulnerabilities in NetApp Products | NetApp Product Security CONFIRM security.netapp.com
Our Audit of Unbound DNS by X41 D-Sec – Full Results – Open Source Technology Improvement Fund MISC ostif.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 159223 Oracle Enterprise Linux Security Update for unbound (ELSA-2021-1853)
  • 178585 Debian Security Update for unbound1.9 (DLA 2652-1)
  • 198356 Ubuntu Security Notification for Unbound vulnerabilities (USN-4938-1)
  • 239293 Red Hat Update for unbound (RHSA-2021:1853)
  • 240098 Red Hat Update for unbound (RHSA-2022:0632)
  • 352454 Amazon Linux Security Advisory for unbound: ALAS2-2021-1683
  • 670501 EulerOS Security Update for unbound (EulerOS-SA-2021-2259)
  • 670527 EulerOS Security Update for unbound (EulerOS-SA-2021-2285)
  • 670560 EulerOS Security Update for unbound (EulerOS-SA-2021-2318)
  • 670593 EulerOS Security Update for unbound (EulerOS-SA-2021-2351)
  • 670678 EulerOS Security Update for unbound (EulerOS-SA-2021-2436)
  • 670924 EulerOS Security Update for unbound (EulerOS-SA-2021-2285)
  • 671048 EulerOS Security Update for unbound (EulerOS-SA-2021-2620)
  • 751647 SUSE Enterprise Linux Security Update for unbound (SUSE-SU-2022:0176-1)
  • 751664 OpenSUSE Security Update for unbound (openSUSE-SU-2022:0176-1)
  • 751682 SUSE Enterprise Linux Security Update for unbound (SUSE-SU-2022:0301-1)
  • 940041 AlmaLinux Security Update for unbound (ALSA-2021:1853)
  • 960747 Rocky Linux Security Update for unbound (RLSA-2021:1853)
© CVE.report 2026 |

Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site. ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT, INDIRECT or any other kind of loss.

CVE, CWE, and OVAL are registred trademarks of The MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. This site includes MITRE data granted under the following license.

CVE.report and Source URL Uptime Status status.cve.report