CVE-2023-2829
published 2023-06-21CVE-2023-2829: A `named` instance configured to run as a DNSSEC-validating recursive resolver with the Aggressive Use of DNSSEC-Validated Cache (RFC 8198) option…
PriorityP341high7.5CVSS 3.1
AVNACLPRNUINSUCNINAH
EPSS
0.88%
56.6th percentile
A `named` instance configured to run as a DNSSEC-validating recursive resolver with the Aggressive Use of DNSSEC-Validated Cache (RFC 8198) option (`synth-from-dnssec`) enabled can be remotely terminated using a zone with a malformed NSEC record.
This issue affects BIND 9 versions 9.16.8-S1 through 9.16.41-S1 and 9.18.11-S1 through 9.18.15-S1.
Affected
6 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | bind9 | — | — |
| isc | bind | 9.16.8 – 9.16.41 | — |
| isc | bind | 9.18.11 – 9.18.15 | — |
| isc | bind_9 | 9.16.8-S1 – 9.16.41-S1 | — |
| isc | bind_9 | 9.18.11-S1 – 9.18.15-S1 | — |
| msrc | cbl2_bind_9.16.44-1_on_cbl_mariner_2.0 | — | — |
CVSS provenance
nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
vendor_debian7.5LOW
vendor_msrc7.5HIGH
vendor_redhat7.5HIGH
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GHSA
GHSA-jhg8-766m-r23j: A `named` instance configured to run as a DNSSEC-validating recursive resolver with the Aggressive Use of DNSSEC-Validated Cache (RFC 8198) option (`s
ghsa_unreviewed·2023-06-21
CVE-2023-2829 [HIGH] GHSA-jhg8-766m-r23j: A `named` instance configured to run as a DNSSEC-validating recursive resolver with the Aggressive Use of DNSSEC-Validated Cache (RFC 8198) option (`s
A `named` instance configured to run as a DNSSEC-validating recursive resolver with the Aggressive Use of DNSSEC-Validated Cache (RFC 8198) option (`synth-from-dnssec`) enabled can be remotely terminated using a zone with a malformed NSEC record.
This issue affects BIND 9 versions 9.16.8-S1 through 9.16.41-S1 and 9.18.11-S1 through 9.18.15-S1.
Red Hat
bind: DNSSEC-Validated cache can be remotely terminated with malformed NSEC record
vendor_redhat·2023-06-21·CVSS 7.5
CVE-2023-2829 [HIGH] bind: DNSSEC-Validated cache can be remotely terminated with malformed NSEC record
bind: DNSSEC-Validated cache can be remotely terminated with malformed NSEC record
A `named` instance configured to run as a DNSSEC-validating recursive resolver with the Aggressive Use of DNSSEC-Validated Cache (RFC 8198) option (`synth-from-dnssec`) enabled can be remotely terminated using a zone with a malformed NSEC record.
This issue affects BIND 9 versions 9.16.8-S1 through 9.16.41-S1 and 9.18.11-S1 through 9.18.15-S1.
A vulnerability was found in BIND. This security flaw occurs when a named instance is configured to run as a DNSSEC-validating recursive resolver with the Aggressive Use of DNSSEC-Validated Cache (RFC 8198) option (synth-from-dnssec) enabled; remote termination can occur using a zone with a malformed NSEC record.
Package: bind (Red Hat Enterprise Linux 6) - Not affe
Microsoft
Malformed NSEC records can cause named to terminate unexpectedly when synth-from-dnssec is enabled
vendor_msrc·2023-06-13·CVSS 7.5
CVE-2023-2829 [HIGH] Malformed NSEC records can cause named to terminate unexpectedly when synth-from-dnssec is enabled
Malformed NSEC records can cause named to terminate unexpectedly when synth-from-dnssec is enabled
FAQ: Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability?
One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the most recent and most secure versions of the open source libraries with which the distro is composed. Microsoft is committed to transparency in this work which is why we began publishing CSAF/VEX in October 2025. See this blog post for more information. If impact to additional products is identified, we will update the CVE to reflect this.
Mariner: Mariner
isc: isc
Customer Action Required: Yes
Remediation: CBL-Mar
Debian
CVE-2023-2829: bind9 - A `named` instance configured to run as a DNSSEC-validating recursive resolver w...
vendor_debian·2023·CVSS 7.5
CVE-2023-2829 [HIGH] CVE-2023-2829: bind9 - A `named` instance configured to run as a DNSSEC-validating recursive resolver w...
A `named` instance configured to run as a DNSSEC-validating recursive resolver with the Aggressive Use of DNSSEC-Validated Cache (RFC 8198) option (`synth-from-dnssec`) enabled can be remotely terminated using a zone with a malformed NSEC record. This issue affects BIND 9 versions 9.16.8-S1 through 9.16.41-S1 and 9.18.11-S1 through 9.18.15-S1.
Scope: local
bookworm: resolved
bullseye: resolved
forky: resolved
sid: resolved
trixie: resolved
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2023-06-21
Published