Description
ISC BIND 9.0.x through 9.3.x, 9.4 before 9.4.3-P5, 9.5 before 9.5.2-P2, 9.6 before 9.6.1-P3, and 9.7.0 beta does not properly validate DNSSEC (1) NSEC and (2) NSEC3 records, which allows remote attackers to add the Authenticated Data (AD) flag to a forged NXDOMAIN response for an existing domain.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | bind9 | 1:9.7.0.dfsg-1 | — |
| Debian 13 | bind9 | 1:9.7.0.dfsg-1 | — |
| Debian 12 | bind9 | 1:9.7.0.dfsg-1 | — |
| Debian 5.0 | bind9 | 1:9.6.ESV.R1+dfsg-0+lenny1 | DSA-2054-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 5 | bind +7 | 30:9.3.6-4.P1.el5_4.2 | RHSA-2010:0062 |
Advisories 2
- RHSA-2010:0062 Red Hat Security Advisory: bind security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- DSA-2054-1 bind9 - cache poisoning Debian Security (DSA / DLA) · Mar 9, 2026
References
- ADV-2010-0176 vdb-entry
- 61853 vdb-entry
- RHSA-2010:0062 vendor-advisory
- 37865 vdb-entry
- oval:org.mitre.oval:def:7212 vdb-entry signature
- 38240 third-party-advisory
- ADV-2010-1352 vdb-entry
- oval:org.mitre.oval:def:7430 vdb-entry signature
- FEDORA-2010-0868 vendor-advisory
- USN-888-1 vendor-advisory
- ADV-2010-0981 vdb-entry
- bind-dnssecnsec-cache-poisoning(55753) vdb-entry
- 1021798 vendor-advisory
- oval:org.mitre.oval:def:9357 vdb-entry signature
- oval:org.mitre.oval:def:12205 vdb-entry signature
- SSRT100004 vendor-advisory
- APPLE-SA-2011-10-12-3 vendor-advisory
- 39334 third-party-advisory
- 40086 third-party-advisory
- ADV-2010-0622 vdb-entry
- FEDORA-2010-0861 vendor-advisory
- 39582 third-party-advisory
- 1023474 vdb-entry
- 38219 third-party-advisory
- MDVSA-2010:021 vendor-advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=554851
- https://h20564.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c04952488
- RHSA-2010:0095 vendor-advisory
- http://wiki.rpath.com/wiki/Advisories:rPSA-2010-0018
- http://support.apple.com/kb/HT5002
- DSA-2054 vendor-advisory
- SUSE-SA:2010:008 vendor-advisory
- 38169 third-party-advisory
- VU#360341 third-party-advisory
- https://www.isc.org/advisories/CVE-2010-0097