CVE-2020-12662

ÉLEVÉE 7.5CVE-2020-12662 · Published 19/05/2020 · updated 17/06/2026

En bref

CVE-2020-12662 est une vulnérabilité ÉLEVÉE (CVSS 7.5) touchant unbound (nlnetlabs).
Probabilité d'exploitation dans les 30 prochains jours (EPSS) : 3.2%, plus élevée que 88.1% des vulnérabilités.
Correctif : mettre à jour vers 1.10.1 ou plus récent.

Package	Affected versions	Patched versions
unbound nlnetlabs	`< 1.10.1`	`1.10.1`

Description

Unbound before 1.10.1 has Insufficient Control of Network Message Volume, aka an "NXNSAttack" issue. This is triggered by random subdomains in the NSDNAME in NS records.

References

lists.opensuse.org/opensuse-security-announce/2020-06/msg00067.html · Mailing List
lists.opensuse.org/opensuse-security-announce/2020-06/msg00069.html · Mailing List
nxnsattack.com · Technical Description
openwall.com/lists/oss-security/2020/05/19/5 · Mailing List
lists.debian.org/debian-lts-announce/2021/02/msg00017.html · Mailing List
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/F5NFROI2OMCZLYRTCNGHGO3TUD32LCIQ
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YJ42N2HBZ3DXMSEC56SWIIOFQGOS5M7I
nlnetlabs.nl/downloads/unbound/CVE-2020-12662_2020-12663.txt · Vendor Advisory
security.freebsd.org/advisories/FreeBSD-SA-20:19.unbound.asc · Third Party Advisory

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