Packages / Debian 12 (Bookworm) / net / nsd

Package: nsd (4.6.1-1)

authoritative domain name server

Other Packages Related to nsd:

dep: [adduser]
add and remove users and groups
dep: [lsb-base]
transitional package for Linux Standard Base init script functionality
dep: [openssl]
Secure Sockets Layer toolkit - cryptographic utility
dep: [libc6] (>= 2.36)
GNU C Library: Shared libraries
dep: [libevent-2.1-7] (>= 2.1.8-stable)
Asynchronous event notification library
dep: [libfstrm0] (>= 0.2.0)
Frame Streams (fstrm) library
dep: [libprotobuf-c1] (>= 1.0.1)
Protocol Buffers C shared library (protobuf-c)
dep: [libssl3] (>= 3.0.0)
Secure Sockets Layer toolkit - shared libraries
dep: [libsystemd0]
systemd utility library

Download nsd

Architecture	Package size	Installed size	Files	Package
amd64	533 KiB	2.3 MiB	list of files	Download
arm64	510 KiB	2.3 MiB	list of files	Download

Package file paths (60)

Paths come from the repository package-file index for the observed builds. They describe archive/package associations, not every file that will exist on a running system after maintainer scripts, alternatives, generated state, diversions, or installation choices.

/etc/init.d/nsd
/etc/nsd/nsd.conf
/lib/systemd/system/nsd.service
/usr/lib/tmpfiles.d/nsd.conf
/usr/sbin/nsd
/usr/sbin/nsd-checkconf
/usr/sbin/nsd-checkzone
/usr/sbin/nsd-control
/usr/sbin/nsd-control-setup
/usr/share/doc/nsd/changelog.Debian.gz
/usr/share/doc/nsd/changelog.gz
/usr/share/doc/nsd/contrib/bind2nsd/bind2nsd/Config.py.gz
/usr/share/doc/nsd/contrib/bind2nsd/bind2nsd/__init__.py
/usr/share/doc/nsd/contrib/bind2nsd/bind2nsd/Key.py
/usr/share/doc/nsd/contrib/bind2nsd/bind2nsd/NamedConf.py.gz
/usr/share/doc/nsd/contrib/bind2nsd/bind2nsd/NsdConf.py.gz
/usr/share/doc/nsd/contrib/bind2nsd/bind2nsd/Parser.py.gz
/usr/share/doc/nsd/contrib/bind2nsd/bind2nsd/Tokenizer.py.gz
/usr/share/doc/nsd/contrib/bind2nsd/bind2nsd/Utils.py
/usr/share/doc/nsd/contrib/bind2nsd/bind2nsd/Zone.py
/usr/share/doc/nsd/contrib/bind2nsd/ChangeLog
/usr/share/doc/nsd/contrib/bind2nsd/chk_version
/usr/share/doc/nsd/contrib/bind2nsd/COPYING
/usr/share/doc/nsd/contrib/bind2nsd/etc/bind2nsd.conf
/usr/share/doc/nsd/contrib/bind2nsd/install.sh
/usr/share/doc/nsd/contrib/bind2nsd/MANIFEST
/usr/share/doc/nsd/contrib/bind2nsd/README
/usr/share/doc/nsd/contrib/bind2nsd/scripts/bind2nsd
/usr/share/doc/nsd/contrib/bind2nsd/scripts/nsd-sync.gz
/usr/share/doc/nsd/contrib/bind2nsd/scripts/s64-mkpw
/usr/share/doc/nsd/contrib/bind2nsd/scripts/s64-sync.gz
/usr/share/doc/nsd/contrib/bind2nsd/setup.py
/usr/share/doc/nsd/contrib/bind2nsd/set_version
/usr/share/doc/nsd/contrib/bind2nsd/TODO
/usr/share/doc/nsd/contrib/bug390.patch
/usr/share/doc/nsd/contrib/nsd.init.gz
/usr/share/doc/nsd/contrib/nsd_munin_.gz
/usr/share/doc/nsd/contrib/nsd.socket
/usr/share/doc/nsd/contrib/nsd.spec
/usr/share/doc/nsd/contrib/nsd.zones2nsd.conf
/usr/share/doc/nsd/contrib/patch_for_s6_startup_and_other_service_supervisors.diff
/usr/share/doc/nsd/contrib/README
/usr/share/doc/nsd/copyright
/usr/share/doc/nsd/CREDITS
/usr/share/doc/nsd/examples/nsd.conf.sample
/usr/share/doc/nsd/NSD-DATABASE
/usr/share/doc/nsd/NSD-DIFFFILE
/usr/share/doc/nsd/NSD-FOR-BIND-USERS.gz
/usr/share/doc/nsd/README.gz
/usr/share/doc/nsd/RELNOTES.gz
/usr/share/doc/nsd/REQUIREMENTS.gz
/usr/share/doc/nsd/TODO.gz
/usr/share/doc/nsd/UPGRADING
/usr/share/lintian/overrides/nsd
/usr/share/man/man5/nsd.conf.5.gz
/usr/share/man/man8/nsd.8.gz
/usr/share/man/man8/nsd-checkconf.8.gz
/usr/share/man/man8/nsd-checkzone.8.gz
/usr/share/man/man8/nsd-control.8.gz
/usr/share/man/man8/nsd-control-setup.8.gz

Field source: Debian 12 (Bookworm) main amd64

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Versions, suites, and repositories

Each row is recorded package-index metadata for one version, architecture, suite, and repository. Names, URLs, and sizes are source-reported; a link is a potentially mutable retrieval location, not an OpenFactory redistribution claim or proof that OpenFactory retained the artifact bytes.

Version	Release	Architecture	Repository	Package size	Installed size	Publisher repository artifact
4.6.1-1	bookworm / main	amd64	Debian 12 · main · amd64	533 KiB	2.3 MiB	pool/main/n/nsd/nsd_4.6.1-1_amd64.deb
4.6.1-1	bookworm / main	arm64	Debian 12 · main · arm64	510 KiB	2.3 MiB	pool/main/n/nsd/nsd_4.6.1-1_arm64.deb

Field source: Debian 12 (Bookworm) main amd64

Known vulnerabilities

Matching against OpenFactory catalog package versions is in progress.

CVE	Severity	Version impact
[CVE-2026-101341] Published: Oct 14, 2026, 10:56:51 AM UTC Tokens of text in RDATA (of for example TXT records) under 32 bytes are not checked to stay within the space reserved for the RDATA allowing for arbitrary sized out of bound stack writes, including an	High(8.7)	Affected Details (2) `4.6.1-1` · amd64 · bookworm Affected nvd · nsd · debian · bookworm; nvd · nsd · debian · 12 `4.6.1-1` · arm64 · bookworm Affected nvd · nsd · debian · bookworm; nvd · nsd · debian · 12
[CVE-2026-101339] Published: Oct 14, 2026, 10:56:37 AM UTC A HIP resource record that fills the RDATA near or at is limit, and has another dname RDATA field (a HIP Rendezvous server) can overwrite the stack with up to 191 bytes of attacker controlled data. Z	High(8.8)	Affected Details (2) `4.6.1-1` · amd64 · bookworm Affected nvd · nsd · debian · bookworm; nvd · nsd · debian · 12 `4.6.1-1` · arm64 · bookworm Affected nvd · nsd · debian · bookworm; nvd · nsd · debian · 12
[CVE-2026-101338] Published: Oct 14, 2026, 10:56:28 AM UTC When a SVCB or HTTPS RR has filled the wire format RDATA up to the brim, another ECH parameter may overwrite the stack, and once beyond the limit, the base64 decoder can write attacker controlled data	High(8.8)	Affected Details (2) `4.6.1-1` · amd64 · bookworm Affected nvd · nsd · debian · bookworm; nvd · nsd · debian · 12 `4.6.1-1` · arm64 · bookworm Affected nvd · nsd · debian · bookworm; nvd · nsd · debian · 12
[CVE-2026-101337] Published: Oct 14, 2026, 10:56:15 AM UTC When base64 data is split up in pieces, of 3 character or less, tokens were incorrectly calculated to produce 0 bytes. This enables attackers to overwrite the stack with up to 64K of attacker controll	High(8.8)	Affected Details (2) `4.6.1-1` · amd64 · bookworm Affected nvd · nsd · debian · bookworm; nvd · nsd · debian · 12 `4.6.1-1` · arm64 · bookworm Affected nvd · nsd · debian · bookworm; nvd · nsd · debian · 12
[CVE-2026-19538] Published: Aug 26, 2026, 8:47:08 AM UTC nsd: CVE-2026-19538	High(8.2)	Affected Details (2) `4.6.1-1` · amd64 · bookworm Affected dsa · nsd · debian · bookworm; dsa · nsd · debian · 12 `4.6.1-1` · arm64 · bookworm Affected dsa · nsd · debian · bookworm; dsa · nsd · debian · 12
[CVE-2026-19401] Published: Aug 26, 2026, 8:44:08 AM UTC Any remote client can crash a (debugging/non-release build type) NSD serve child by sending it a special crafted message with a specially tuned number of DNS Cookie options (17 when UDP payload size i	High(8.2)	Affected Details (2) `4.6.1-1` · amd64 · bookworm Affected nvd · nsd · debian · bookworm; nvd · nsd · debian · 12 `4.6.1-1` · arm64 · bookworm Affected nvd · nsd · debian · bookworm; nvd · nsd · debian · 12
[CVE-2026-18916] Published: Aug 26, 2026, 8:39:12 AM UTC Any remote client can crash a NSD serve child, by throttling the TCP receive window after a TCP query. By continuously crashing the serve childs, the remote client can denial all TCP service to this N	High(7.5)	Affected Details (2) `4.6.1-1` · amd64 · bookworm Affected nvd · nsd · debian · bookworm; nvd · nsd · debian · 12 `4.6.1-1` · arm64 · bookworm Affected nvd · nsd · debian · bookworm; nvd · nsd · debian · 12
[CVE-2026-18664] Published: Aug 26, 2026, 8:34:22 AM UTC When ranges are used for access control (i.e. of the form 1.2.3.4-1.2.3.25), because NSD wrongly compares the IP address with the range on little endian systems, IPs that were meant to be allowed may	High(8.2)	Affected Details (2) `4.6.1-1` · amd64 · bookworm Affected nvd · nsd · debian · bookworm; nvd · nsd · debian · 12 `4.6.1-1` · arm64 · bookworm Affected nvd · nsd · debian · bookworm; nvd · nsd · debian · 12
[CVE-2026-12490] Published: Jun 25, 2026, 12:00:00 AM UTC When a provide-xfr is given with a tls-auth-name, a secondary requesting a transfer should provide a client certificate with that name. However, no client certificate is needed when the request comes	High(8.2)	Affected Details (2) `4.6.1-1` · amd64 · bookworm Affected nvd · nsd · debian · bookworm; nvd · nsd · debian · 12 `4.6.1-1` · arm64 · bookworm Affected nvd · nsd · debian · bookworm; nvd · nsd · debian · 12
[CVE-2020-28935] Published: Dec 7, 2020, 10:15:00 PM UTC nsd: CVE-2020-28935	Medium(4.4)	Unknown Matching against OpenFactory catalog package versions is in progress. Observed: Oct 23, 2026, 5:51:12 PM UTC Details (2) `4.6.1-1` · amd64 · bookworm Fixed · Fixed: `4.3.4-1` dsa · nsd · debian · bookworm; dsa · nsd · debian · 12 `4.6.1-1` · arm64 · bookworm Fixed · Fixed: `4.3.4-1` dsa · nsd · debian · bookworm; dsa · nsd · debian · 12

Fixed and unaffected versions (6)

CVE	Severity	Version impact
[CVE-2026-12244] Published: Jun 25, 2026, 12:00:00 AM UTC If NSD is configured as secondary for a zone, the primary of that zone can crash NSD with an AXFR containing a DNS message with a special crafted SVCB RR with an rdata size of 65512, that let's an (ui	High(8.8)	Not affected Details (2) `4.6.1-1` · amd64 · bookworm Not affected nvd · nsd · debian · bookworm `4.6.1-1` · arm64 · bookworm Not affected nvd · nsd · debian · bookworm
[CVE-2026-12245] Published: Jun 25, 2026, 12:00:00 AM UTC NSD from version 4.13.0 has a heap use-after-free bug in logging errors on TLS connections, causing a crash of the server process, which can be triggered trivially by sending a DNS query over a DoT co	High(8.7)	Not affected Details (2) `4.6.1-1` · amd64 · bookworm Not affected nvd · nsd · debian · bookworm `4.6.1-1` · arm64 · bookworm Not affected nvd · nsd · debian · bookworm
[CVE-2026-12246] Published: Jun 25, 2026, 12:00:00 AM UTC NSD version 4.14.0 introduced a bug where a specially crafted APL RR, with an adflength larger than permitted for the address family will overwrite the stack when the zone is written to disk, with a m	High(8.1)	Not affected Details (2) `4.6.1-1` · amd64 · bookworm Not affected nvd · nsd · debian · bookworm `4.6.1-1` · arm64 · bookworm Not affected nvd · nsd · debian · bookworm
[CVE-2019-13207] Published: Jul 3, 2019, 8:15:11 PM UTC nsd: CVE-2019-13207	Medium(6.5)	Fixed Details (2) `4.6.1-1` · amd64 · bookworm Fixed · Fixed: `4.2.4-1` dsa · nsd · debian · bookworm; dsa · nsd · debian · 12 `4.6.1-1` · arm64 · bookworm Fixed · Fixed: `4.2.4-1` dsa · nsd · debian · bookworm; dsa · nsd · debian · 12
[CVE-2016-6173] Published: Feb 9, 2017, 3:59:00 PM UTC nsd: CVE-2016-6173	High(7.5)	Fixed Details (2) `4.6.1-1` · amd64 · bookworm Fixed · Fixed: `4.1.11-1` dsa · nsd · debian · bookworm; dsa · nsd · debian · 12 `4.6.1-1` · arm64 · bookworm Fixed · Fixed: `4.1.11-1` dsa · nsd · debian · bookworm; dsa · nsd · debian · 12
[CVE-2009-1755] Published: May 20, 2009, 12:00:00 AM UTC nsd: CVE-2009-1755	High	Fixed Details (2) `4.6.1-1` · amd64 · bookworm Fixed · Fixed: `2.3.7-3` dsa · nsd · debian · bookworm; dsa · nsd · debian · 12 `4.6.1-1` · arm64 · bookworm Fixed · Fixed: `2.3.7-3` dsa · nsd · debian · bookworm; dsa · nsd · debian · 12

Last synced: Oct 28, 2026, 1:40:02 AM UTC

[CVE catalog]

Checksums

Repository signatures authenticate metadata. Artifact hashing is recorded separately. Neither establishes package safety.

4.6.1-1 / amd64Observed Sep 1, 2026sha256 b4d862693d41…f9d5b75fSource-reported digest

Metadata observed; artifact bytes were not independently fetched or hashed by this catalog import. The digest below is source-reported.

Source-reported digest (sha256): b4d862693d4169e9682d37e5c21b2d3b278a3bfc589302000a0b0ae1f9d5b75f

Verify download

printf '%s  %s\n' 'b4d862693d4169e9682d37e5c21b2d3b278a3bfc589302000a0b0ae1f9d5b75f' 'nsd_4.6.1-1_amd64.deb' | sha256sum --check --strict -

Field source: Debian 12 (Bookworm) main amd64

4.6.1-1 / arm64Observed Sep 1, 2026sha256 39ecf89bb414…e7929406Source-reported digest

Metadata observed; artifact bytes were not independently fetched or hashed by this catalog import. The digest below is source-reported.

Source-reported digest (sha256): 39ecf89bb414e406c8890349ad2292f68c91e994cadb8ee3a5ab660be7929406

Verify download

printf '%s  %s\n' '39ecf89bb414e406c8890349ad2292f68c91e994cadb8ee3a5ab660be7929406' 'nsd_4.6.1-1_arm64.deb' | sha256sum --check --strict -

Field source: Debian 12 (Bookworm) main arm64

Sources

Debian 12 (Bookworm) main amd64Sep 1, 2026
Authoritative source; repository metadata signature verified
Signature evidence
bookworm-main-amd64:9e0b5aabb2465b3d2e7a7fe27f9913846277833f7a2826e7767acccff5b588c5
Repository-signature verification record
Signed object
https://deb.debian.org/debian/dists/bookworm/InRelease
Signed-object SHA-256
77737fa4b34f2693e982cc9ee35736816c35a7778fc2d326cc1bbf5b301fe1aa
Signer fingerprint
4CB50190207B4758A3F73A796ED0E7B82643E131
Keyring revision
debian-archive-keyring.gpg
SHA-256 506b815cbb32d9b6066b4a2aa524071e071761e7e7f68c3ac74f3061ba852017
Tool and policy
gpgv (GnuPG) 2.4.9
openfactory-software-catalog-signature-v1
Verification time
Sep 1, 2026
Repository metadata hash linkage
Path
main/binary-amd64/Packages.xz
Expected SHA-256
9e0b5aabb2465b3d2e7a7fe27f9913846277833f7a2826e7767acccff5b588c5
Observed SHA-256
9e0b5aabb2465b3d2e7a7fe27f9913846277833f7a2826e7767acccff5b588c5
Result
match verified
Debian 12 (Bookworm) main arm64Sep 1, 2026
Authoritative source; repository metadata signature verified
Signature evidence
bookworm-main-arm64:2ddb1737692e8c45c53e8d57c0ce4cd21c78c5703b830c3226b1423566a06c00
Repository-signature verification record
Signed object
https://deb.debian.org/debian/dists/bookworm/InRelease
Signed-object SHA-256
77737fa4b34f2693e982cc9ee35736816c35a7778fc2d326cc1bbf5b301fe1aa
Signer fingerprint
4CB50190207B4758A3F73A796ED0E7B82643E131
Keyring revision
debian-archive-keyring.gpg
SHA-256 506b815cbb32d9b6066b4a2aa524071e071761e7e7f68c3ac74f3061ba852017
Tool and policy
gpgv (GnuPG) 2.4.9
openfactory-software-catalog-signature-v1
Verification time
Sep 1, 2026
Repository metadata hash linkage
Path
main/binary-arm64/Packages.xz
Expected SHA-256
2ddb1737692e8c45c53e8d57c0ce4cd21c78c5703b830c3226b1423566a06c00
Observed SHA-256
2ddb1737692e8c45c53e8d57c0ce4cd21c78c5703b830c3226b1423566a06c00
Result
match verified