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pdns-recursor

PowerDNS Recursor

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general
  • source: pdns-recursor (main)
  • version: 5.3.0-4
  • maintainer: pdns-recursor packagers (DMD)
  • uploaders: Marc Haber [DMD] – Chris Hofstaedtler [DMD]
  • arch: any
  • std-ver: 4.5.1
  • VCS: Git (Browse, QA)
versions [more versions can be listed by madison] [old versions available from snapshot.debian.org]
[pool directory]
  • o-o-stable: 4.4.2-3
  • oldstable: 4.8.8-1+deb12u1
  • old-sec: 4.8.8-1+deb12u1
  • stable: 5.2.4-2
  • testing: 5.3.0-2
  • unstable: 5.3.0-4
versioned links
  • 4.4.2-3: [.dsc, use dget on this link to retrieve source package] [changelog] [copyright] [rules] [control]
  • 4.8.8-1+deb12u1: [.dsc, use dget on this link to retrieve source package] [changelog] [copyright] [rules] [control]
  • 5.2.4-2: [.dsc, use dget on this link to retrieve source package] [changelog] [copyright] [rules] [control]
  • 5.3.0-2: [.dsc, use dget on this link to retrieve source package] [changelog] [copyright] [rules] [control]
  • 5.3.0-4: [.dsc, use dget on this link to retrieve source package] [changelog] [copyright] [rules] [control]
binaries
  • pdns-recursor (4 bugs: 0, 4, 0, 0)
action needed
8 security issues in buster high

There are 8 open security issues in buster.

3 important issues:
  • CVE-2023-50387: Certain DNSSEC aspects of the DNS protocol (in RFC 4033, 4034, 4035, 6840, and related RFCs) allow remote attackers to cause a denial of service (CPU consumption) via one or more DNSSEC responses, aka the "KeyTrap" issue. One of the concerns is that, when there is a zone with many DNSKEY and RRSIG records, the protocol specification implies that an algorithm must evaluate all combinations of DNSKEY and RRSIG records.
  • CVE-2023-50868: The Closest Encloser Proof aspect of the DNS protocol (in RFC 5155 when RFC 9276 guidance is skipped) allows remote attackers to cause a denial of service (CPU consumption for SHA-1 computations) via DNSSEC responses in a random subdomain attack, aka the "NSEC3" issue. The RFC 5155 specification implies that an algorithm must perform thousands of iterations of a hash function in certain situations.
  • CVE-2024-25583: A crafted response from an upstream server the recursor has been configured to forward-recurse to can cause a Denial of Service in the Recursor. The default configuration of the Recursor does not use recursive forwarding and is not affected.
5 issues postponed or untriaged:
  • CVE-2020-14196: (postponed; to be fixed through a stable update) In PowerDNS Recursor versions up to and including 4.3.1, 4.2.2 and 4.1.16, the ACL restricting access to the internal web server is not properly enforced.
  • CVE-2020-25829: (needs triaging) An issue has been found in PowerDNS Recursor before 4.1.18, 4.2.x before 4.2.5, and 4.3.x before 4.3.5. A remote attacker can cause the cached records for a given name to be updated to the Bogus DNSSEC validation state, instead of their actual DNSSEC Secure state, via a DNS ANY query. This results in a denial of service for installation that always validate (dnssec=validate), and for clients requesting validation when on-demand validation is enabled (dnssec=process).
  • CVE-2022-27227: (needs triaging) In PowerDNS Authoritative Server before 4.4.3, 4.5.x before 4.5.4, and 4.6.x before 4.6.1 and PowerDNS Recursor before 4.4.8, 4.5.x before 4.5.8, and 4.6.x before 4.6.1, insufficient validation of an IXFR end condition causes incomplete zone transfers to be handled as successful transfers.
  • CVE-2022-37428: (needs triaging) PowerDNS Recursor up to and including 4.5.9, 4.6.2 and 4.7.1, when protobuf logging is enabled, has Improper Cleanup upon a Thrown Exception, leading to a denial of service (daemon crash) via a DNS query that leads to an answer with specific properties.
  • CVE-2023-26437: (needs triaging) Denial of service vulnerability in PowerDNS Recursor allows authoritative servers to be marked unavailable.This issue affects Recursor: through 4.6.5, through 4.7.4 , through 4.8.3.
Created: 2024-02-13 Last update: 2024-06-29 13:15
lintian reports 6 warnings normal
Lintian reports 6 warnings about this package. You should make the package lintian clean getting rid of them.
Created: 2025-09-07 Last update: 2025-09-07 10:33
debian/patches: 3 patches to forward upstream low

Among the 3 debian patches available in version 5.3.0-4 of the package, we noticed the following issues:

  • 3 patches where the metadata indicates that the patch has not yet been forwarded upstream. You should either forward the patch upstream or update the metadata to document its real status.
Created: 2023-02-26 Last update: 2025-09-07 07:04
1 low-priority security issue in bookworm low

There is 1 open security issue in bookworm.

1 issue left for the package maintainer to handle:
  • CVE-2025-30192: (needs triaging) An attacker spoofing answers to ECS enabled requests sent out by the Recursor has a chance of success higher than non-ECS enabled queries. The updated version include various mitigations against spoofing attempts of ECS enabled queries by chaining ECS enabled requests and enforcing stricter validation of the received answers. The most strict mitigation done when the new setting outgoing.edns_subnet_harden (old style name edns-subnet-harden) is enabled.

You can find information about how to handle this issue in the security team's documentation.

Created: 2025-07-24 Last update: 2025-09-07 05:28
Standards version of the package is outdated. wishlist
The package should be updated to follow the last version of Debian Policy (Standards-Version 4.7.2 instead of 4.5.1).
Created: 2021-08-18 Last update: 2025-09-07 05:35
testing migrations
  • This package will soon be part of the auto-libsodium transition. You might want to ensure that your package is ready for it. You can probably find supplementary information in the debian-release archives or in the corresponding release.debian.org bug.
  • excuses:
    • Migrates after: rust-hyper-rustls, rust-rustls
    • Migration status for pdns-recursor (5.3.0-2 to 5.3.0-4): BLOCKED: Maybe temporary, maybe blocked but Britney is missing information (check below)
    • Issues preventing migration:
    • ∙ ∙ missing build on riscv64
    • ∙ ∙ missing build on s390x
    • ∙ ∙ arch:riscv64 not built yet, autopkgtest delayed there
    • ∙ ∙ arch:s390x not built yet, autopkgtest delayed there
    • ∙ ∙ autopkgtest for pdns-recursor/5.3.0-4: amd64: Test triggered, arm64: Pass, ppc64el: Test triggered
    • ∙ ∙ Waiting for lintian test results on riscv64, s390x - info
    • ∙ ∙ Too young, only 0 of 5 days old
    • ∙ ∙ Built-Using: pdns-recursor rust-hyper-rustls
    • ∙ ∙ Built-Using: pdns-recursor rust-rustls
    • Additional info:
    • ∙ ∙ Piuparts tested OK - https://piuparts.debian.org/sid/source/p/pdns-recursor.html
    • ∙ ∙ Reproducible on amd64 - info ♻
    • ∙ ∙ Waiting for reproducibility test results on arm64 - info ♻
    • Not considered
news
[rss feed]
  • [2025-09-07] Accepted pdns-recursor 5.3.0-5 (source) into unstable (Chris Hofstaedtler) (signed by: Christian Hofstaedtler)
  • [2025-09-06] Accepted pdns-recursor 5.3.0-4 (source) into unstable (Chris Hofstaedtler) (signed by: Christian Hofstaedtler)
  • [2025-09-06] Accepted pdns-recursor 5.3.0-3 (source) into unstable (Chris Hofstaedtler) (signed by: Christian Hofstaedtler)
  • [2025-09-05] pdns-recursor 5.3.0-2 MIGRATED to testing (Debian testing watch)
  • [2025-09-02] Accepted pdns-recursor 5.3.0-2 (source) into unstable (Chris Hofstaedtler) (signed by: Christian Hofstaedtler)
  • [2025-08-31] pdns-recursor 5.3.0-1 MIGRATED to testing (Debian testing watch)
  • [2025-08-28] Accepted pdns-recursor 5.3.0-1 (source) into unstable (Chris Hofstaedtler) (signed by: Christian Hofstaedtler)
  • [2025-08-26] Accepted pdns-recursor 5.2.5-1 (source) into unstable (Chris Hofstaedtler) (signed by: Christian Hofstaedtler)
  • [2025-07-29] pdns-recursor 5.2.4-2 MIGRATED to testing (Debian testing watch)
  • [2025-07-26] Accepted pdns-recursor 5.2.4-2 (source) into unstable (Chris Hofstaedtler) (signed by: Christian Hofstaedtler)
  • [2025-07-25] pdns-recursor 5.2.2-2 MIGRATED to testing (Debian testing watch)
  • [2025-07-24] Accepted pdns-recursor 5.2.4-1 (source) into experimental (Chris Hofstaedtler) (signed by: Christian Hofstaedtler)
  • [2025-07-20] Accepted pdns-recursor 5.2.2-2 (source) into unstable (Chris Hofstaedtler) (signed by: Christian Hofstaedtler)
  • [2025-04-12] pdns-recursor 5.2.2-1 MIGRATED to testing (Debian testing watch)
  • [2025-04-10] Accepted pdns-recursor 5.2.2-1 (source) into unstable (Chris Hofstaedtler) (signed by: Christian Hofstaedtler)
  • [2025-04-10] pdns-recursor 5.2.1-1 MIGRATED to testing (Debian testing watch)
  • [2025-04-07] Accepted pdns-recursor 5.2.1-1 (source) into unstable (Chris Hofstaedtler) (signed by: Christian Hofstaedtler)
  • [2025-03-19] pdns-recursor 5.2.0-5 MIGRATED to testing (Debian testing watch)
  • [2025-03-16] Accepted pdns-recursor 5.2.0-5 (source) into unstable (Chris Hofstaedtler) (signed by: Christian Hofstaedtler)
  • [2025-02-26] pdns-recursor 5.2.0-4 MIGRATED to testing (Debian testing watch)
  • [2025-02-24] Accepted pdns-recursor 5.2.0-4 (source) into unstable (Chris Hofstaedtler) (signed by: Christian Hofstaedtler)
  • [2025-02-21] Accepted pdns-recursor 5.2.0-3 (source) into unstable (Chris Hofstaedtler) (signed by: Christian Hofstaedtler)
  • [2025-02-17] Accepted pdns-recursor 5.2.0-2 (source) into unstable (Chris Hofstaedtler) (signed by: Christian Hofstaedtler)
  • [2025-02-15] Accepted pdns-recursor 5.2.0-1 (source) into unstable (Chris Hofstaedtler) (signed by: Christian Hofstaedtler)
  • [2025-02-15] pdns-recursor 5.1.3-2 MIGRATED to testing (Debian testing watch)
  • [2025-02-10] Accepted pdns-recursor 5.1.3-2 (source) into unstable (Chris Hofstaedtler) (signed by: Christian Hofstaedtler)
  • [2025-01-30] Accepted pdns-recursor 4.8.8-1+deb12u1 (source) into proposed-updates (Debian FTP Masters) (signed by: Christian Hofstaedtler)
  • [2025-01-28] Accepted pdns-recursor 4.8.8-1+deb12u1 (source) into stable-security (Debian FTP Masters) (signed by: Christian Hofstaedtler)
  • [2024-11-15] pdns-recursor 5.1.3-1 MIGRATED to testing (Debian testing watch)
  • [2024-11-13] Accepted pdns-recursor 5.1.3-1 (source) into unstable (Chris Hofstaedtler) (signed by: Christian Hofstaedtler)
  • 1
  • 2
bugs [bug history graph]
  • all: 4
  • RC: 0
  • I&N: 4
  • M&W: 0
  • F&P: 0
  • patch: 0
links
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ubuntu Ubuntu logo [Information about Ubuntu for Debian Developers]
  • version: 5.2.4-2build2
  • 3 bugs

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