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Vulnerabilities / CVE-2019-25033

critical

CVE-2019-25033

unbound: integer overflow in the regional allocator via the ALIGN_UP macro

Published Modified CWE 190
In the Trivy database since at least 24 Oct 2026, 07:11 UTCWhen it arrived before that build is not recorded.

Severity by source

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Red Hat9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Trivy's own label is CRITICAL. Rated critical by NVD, Photon OS. Rated lower by Red Hat (medium), Amazon (medium), Ubuntu (medium).

Description

Unbound before 1.9.5 allows an integer overflow in the regional allocator via the ALIGN_UP macro. 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

Affected packages and fixed versions

SourcePackageFixed in
Photon OS 1.0unbound1.13.1-1.ph1
Photon OS 2.0unbound1.13.1-1.ph2
Photon OS 3.0unbound1.13.1-1.ph3
Photon OS 5.0unbound, unbound-devel, unbound-docs1.26.0-1.ph5
amazon linux 2python2-unbound, python3-unbound, unbound and 3 more1.7.3-15.amzn2.0.1
debian 11unbound1.9.6-1
debian 12unbound1.9.6-1
debian 13unbound1.9.6-1
debian 14unbound1.9.6-1
debian 9unbound, unbound1.91.9.0-2+deb10u2~deb9u2
echounbound1.9.6-1
Red Hatunbound, unbound-devel, unbound-libs and 1 moreno fix listed
Show all 27 entries from 16 sources
SourcePackageFixed in
Photon OS 1.0unbound1.13.1-1.ph1
Photon OS 2.0unbound1.13.1-1.ph2
Photon OS 3.0unbound1.13.1-1.ph3
Photon OS 5.0unbound1.26.0-1.ph5
Photon OS 5.0unbound-devel1.26.0-1.ph5
Photon OS 5.0unbound-docs1.26.0-1.ph5
amazon linux 2python2-unbound1.7.3-15.amzn2.0.1
amazon linux 2python3-unbound1.7.3-15.amzn2.0.1
amazon linux 2unbound1.7.3-15.amzn2.0.1
amazon linux 2unbound-debuginfo1.7.3-15.amzn2.0.1
amazon linux 2unbound-devel1.7.3-15.amzn2.0.1
amazon linux 2unbound-libs1.7.3-15.amzn2.0.1
debian 11unbound1.9.6-1
debian 12unbound1.9.6-1
debian 13unbound1.9.6-1
debian 14unbound1.9.6-1
debian 9unboundno fix listed
debian 9unbound1.91.9.0-2+deb10u2~deb9u2
echounbound1.9.6-1
Red Hatunboundno fix listed
Red Hatunbound-develno fix listed
Red Hatunbound-libsno fix listed
Red Hatunbound-pythonno fix listed
ubuntu 18.04unbound1.6.7-1ubuntu2.4
ubuntu 18.04-ESMunbound1.6.7-1ubuntu2.4
ubuntu 20.04unbound1.9.4-2ubuntu1.2
ubuntu 20.04-ESMunbound1.9.4-2ubuntu1.2

References

Vulnerability data compiled from the Trivy vulnerability database (trivy-db, Aqua Security, Apache License 2.0), which aggregates third-party advisories. CVE records are published by The MITRE Corporation under the CVE Terms of Use; CVE is a trademark of MITRE. This product uses data from the NVD API but is not endorsed or certified by the NVD. Severity, titles and advisory data from the GitHub Advisory Database (CC BY 4.0), Red Hat security data (CC BY 4.0) and the other sources linked on each entry. Entries may be summarised or re-formatted; the linked original is the authoritative record.