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
02 Description
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
03 Exploitation and scoring
- Exploitation
- Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
- SSVC decision
- ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
- AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
- Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
- EPSS probability
- 99.99% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 99.9% of scored records. A rank, not a probability.
- NVD base score
- 7.5 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- Important. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2024-02-14 00:00Z2 YR AGO
- Last updated
- 2025-11-04 18:20Z11 MO AGO
- Reserved
- 2023-12-07
- Assigning CNA
- mitre
- Record state
- PUBLISHED
- Severity
- High (CVSS 7.5)
- CNA CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- Data version
- 5.2
- Document digest
- b7d66875229d1d97da438ed366552657d1b2d6c891b9335805afbe93a87be63b
05 Affected products
06 References
- www.athene-center.dehttps://www.athene-center.de/aktuelles/key-trap
- nlnetlabs.nlhttps://nlnetlabs.nl/news/2024/Feb/13/unbound-1.19.1-released/
- kb.isc.orghttps://kb.isc.org/docs/cve-2023-50387
- docs.powerdns.comhttps://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2024-01.html
- www.theregister.comhttps://www.theregister.com/2024/02/13/dnssec_vulnerability_internet/
- news.ycombinator.comhttps://news.ycombinator.com/item?id=39367411
- www.securityweek.comhttps://www.securityweek.com/keytrap-dns-attack-could-disable-large-parts-of-internet-researchers/
- www.isc.orghttps://www.isc.org/blogs/2024-bind-security-release/
- news.ycombinator.comhttps://news.ycombinator.com/item?id=39372384
- gitlab.nic.czhttps://gitlab.nic.cz/knot/knot-resolver/-/releases/v5.7.1
- lists.thekelleys.org.ukhttps://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2024q1/017430.html
- msrc.microsoft.comhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-50387
- access.redhat.comhttps://access.redhat.com/security/cve/CVE-2023-50387
- bugzilla.suse.comhttps://bugzilla.suse.com/show_bug.cgi?id=1219823
- www.athene-center.dehttps://www.athene-center.de/fileadmin/content/PDF/Technical_Report_KeyTrap.pdf
- www.openwall.com[oss-security] 20240216 Re: Unbound: disclosure of CVE-2023-50387 and CVE-2023-50868 DNSSEC validation vulnerabilitieshttp://www.openwall.com/lists/oss-security/2024/02/16/2
- www.openwall.com[oss-security] 20240216 Re: Unbound: disclosure of CVE-2023-50387 and CVE-2023-50868 DNSSEC validation vulnerabilitieshttp://www.openwall.com/lists/oss-security/2024/02/16/3
- lists.fedoraproject.orgFEDORA-2024-2e26eccfcbhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SVYA42BLXUCIDLD35YIJPJSHDIADNYMP/
- lists.fedoraproject.orgFEDORA-2024-e24211eff0https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BUIP7T7Z4T3UHLXFWG6XIVDP4GYPD3AI/
- lists.fedoraproject.orgFEDORA-2024-21310568fahttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PNNHZSZPG2E7NBMBNYPGHCFI4V4XRWNQ/
- lists.debian.org[debian-lts-announce] 20240221 [SECURITY] [DLA 3736-1] unbound security updatehttps://lists.debian.org/debian-lts-announce/2024/02/msg00006.html
- lists.fedoraproject.orgFEDORA-2024-b0f9656a76https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TEXGOYGW7DBS3N2QSSQONZ4ENIRQEAPG/
- lists.fedoraproject.orgFEDORA-2024-4e36df9dfdhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UQESRWMJCF4JEYJEAKLRM6CT55GLJAB7/
- lists.fedoraproject.orgFEDORA-2024-499b9be35fhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RGS7JN6FZXUSTC2XKQHH27574XOULYYJ/
- lists.fedoraproject.orgFEDORA-2024-c36c448396https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HVRDSJVZKMCXKKPP6PNR62T7RWZ3YSDZ/
- lists.fedoraproject.orgFEDORA-2024-c967c7d287https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6FV5O347JTX7P5OZA6NGO4MKTXRXMKOZ/
- lists.fedoraproject.orgFEDORA-2024-e00eceb11chttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IGSLGKUAQTW5JPPZCMF5YPEYALLRUZZ6/
- lists.fedoraproject.orgFEDORA-2024-fae88b73ebhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZDZFMEKQTZ4L7RY46FCENWFB5MDT263R/
- security.netapp.comhttps://security.netapp.com/advisory/ntap-20240307-0007/
- lists.debian.org[debian-lts-announce] 20240517 [SECURITY] [DLA 3816-1] bind9 security updatehttps://lists.debian.org/debian-lts-announce/2024/05/msg00011.html
- lists.debian.orghttps://lists.debian.org/debian-lts-announce/2024/11/msg00035.html
- lists.debian.orghttps://lists.debian.org/debian-lts-announce/2024/09/msg00001.html
- lists.fedoraproject.orghttps://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZDZFMEKQTZ4L7RY46FCENWFB5MDT263R/
- lists.fedoraproject.orghttps://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HVRDSJVZKMCXKKPP6PNR62T7RWZ3YSDZ/
- lists.fedoraproject.orghttps://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RGS7JN6FZXUSTC2XKQHH27574XOULYYJ/
- lists.fedoraproject.orghttps://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BUIP7T7Z4T3UHLXFWG6XIVDP4GYPD3AI/
07 Fixed in
AlmaLinux 8
- bind Fixed
A version is affected if any line below covers it.
- Affected before 32:9.11.36-11.el8_9.1
- Affected before 32:9.11.36-14.el8_10
- bind-chroot Fixed
A version is affected if any line below covers it.
- Affected before 32:9.11.36-11.el8_9.1
- Affected before 32:9.11.36-14.el8_10
- bind-devel Fixed
A version is affected if any line below covers it.
- Affected before 32:9.11.36-11.el8_9.1
- Affected before 32:9.11.36-14.el8_10
- bind-export-devel Fixed
A version is affected if any line below covers it.
- Affected before 32:9.11.36-11.el8_9.1
- Affected before 32:9.11.36-14.el8_10
- bind-export-libs Fixed
A version is affected if any line below covers it.
- Affected before 32:9.11.36-11.el8_9.1
- Affected before 32:9.11.36-14.el8_10
- bind-libs Fixed
A version is affected if any line below covers it.
- Affected before 32:9.11.36-11.el8_9.1
- Affected before 32:9.11.36-14.el8_10
- bind-libs-lite Fixed
A version is affected if any line below covers it.
- Affected before 32:9.11.36-11.el8_9.1
- Affected before 32:9.11.36-14.el8_10
- bind-license Fixed
A version is affected if any line below covers it.
- Affected before 32:9.11.36-11.el8_9.1
- Affected before 32:9.11.36-14.el8_10
- bind-lite-devel Fixed
A version is affected if any line below covers it.
- Affected before 32:9.11.36-11.el8_9.1
- Affected before 32:9.11.36-14.el8_10
- bind-pkcs11 Fixed
A version is affected if any line below covers it.
- Affected before 32:9.11.36-11.el8_9.1
- Affected before 32:9.11.36-14.el8_10
- bind-pkcs11-devel Fixed
A version is affected if any line below covers it.
- Affected before 32:9.11.36-11.el8_9.1
- Affected before 32:9.11.36-14.el8_10
- bind-pkcs11-libs Fixed
A version is affected if any line below covers it.
- Affected before 32:9.11.36-11.el8_9.1
- Affected before 32:9.11.36-14.el8_10
- bind-pkcs11-utils Fixed
A version is affected if any line below covers it.
- Affected before 32:9.11.36-11.el8_9.1
- Affected before 32:9.11.36-14.el8_10
- bind-sdb Fixed
A version is affected if any line below covers it.
- Affected before 32:9.11.36-11.el8_9.1
- Affected before 32:9.11.36-14.el8_10
- bind-sdb-chroot Fixed
A version is affected if any line below covers it.
- Affected before 32:9.11.36-11.el8_9.1
- Affected before 32:9.11.36-14.el8_10
- bind-utils Fixed
A version is affected if any line below covers it.
- Affected before 32:9.11.36-11.el8_9.1
- Affected before 32:9.11.36-14.el8_10
- bind9.16 Fixed in 32:9.16.23-0.16.el8_9.2.alma.1
- bind9.16-chroot Fixed in 32:9.16.23-0.16.el8_9.2.alma.1
- bind9.16-devel Fixed in 32:9.16.23-0.16.el8_9.2.alma.1
- bind9.16-dnssec-utils Fixed in 32:9.16.23-0.16.el8_9.2.alma.1
- bind9.16-doc Fixed in 32:9.16.23-0.16.el8_9.2.alma.1
- bind9.16-libs Fixed in 32:9.16.23-0.16.el8_9.2.alma.1
- bind9.16-license Fixed in 32:9.16.23-0.16.el8_9.2.alma.1
- bind9.16-utils Fixed in 32:9.16.23-0.16.el8_9.2.alma.1
- dnsmasq Fixed in 2.79-31.el8_9.2
- dnsmasq-utils Fixed in 2.79-31.el8_9.2
- python3-bind Fixed
A version is affected if any line below covers it.
- Affected before 32:9.11.36-11.el8_9.1
- Affected before 32:9.11.36-14.el8_10
- python3-bind9.16 Fixed in 32:9.16.23-0.16.el8_9.2.alma.1
- python3-unbound Fixed in 1.16.2-5.el8_9.2
- unbound Fixed in 1.16.2-5.el8_9.2
- unbound-devel Fixed in 1.16.2-5.el8_9.2
- unbound-libs Fixed in 1.16.2-5.el8_9.2
Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
AlmaLinux 9
- bind Fixed
A version is affected if any line below covers it.
- Affected before 32:9.16.23-14.el9_3.4
- Affected before 32:9.16.23-18.el9_4.1
- bind-chroot Fixed
A version is affected if any line below covers it.
- Affected before 32:9.16.23-14.el9_3.4
- Affected before 32:9.16.23-18.el9_4.1
- bind-devel Fixed
A version is affected if any line below covers it.
- Affected before 32:9.16.23-14.el9_3.4
- Affected before 32:9.16.23-18.el9_4.1
- bind-dnssec-doc Fixed
A version is affected if any line below covers it.
- Affected before 32:9.16.23-14.el9_3.4
- Affected before 32:9.16.23-18.el9_4.1
- bind-dnssec-utils Fixed
A version is affected if any line below covers it.
- Affected before 32:9.16.23-14.el9_3.4
- Affected before 32:9.16.23-18.el9_4.1
- bind-doc Fixed
A version is affected if any line below covers it.
- Affected before 32:9.16.23-14.el9_3.4
- Affected before 32:9.16.23-18.el9_4.1
- bind-dyndb-ldap Fixed
A version is affected if any line below covers it.
- Affected before 11.9-8.el9_3.3.alma.1
- Affected before 11.9-9.el9_4.alma.1
- bind-libs Fixed
A version is affected if any line below covers it.
- Affected before 32:9.16.23-14.el9_3.4
- Affected before 32:9.16.23-18.el9_4.1
- bind-license Fixed
A version is affected if any line below covers it.
- Affected before 32:9.16.23-14.el9_3.4
- Affected before 32:9.16.23-18.el9_4.1
- bind-utils Fixed
A version is affected if any line below covers it.
- Affected before 32:9.16.23-14.el9_3.4
- Affected before 32:9.16.23-18.el9_4.1
- dnsmasq Fixed in 2.85-14.el9_3.1
- dnsmasq-utils Fixed in 2.85-14.el9_3.1
- python3-bind Fixed
A version is affected if any line below covers it.
- Affected before 32:9.16.23-14.el9_3.4
- Affected before 32:9.16.23-18.el9_4.1
- python3-unbound Fixed in 1.16.2-3.el9_3.1
- unbound Fixed in 1.16.2-3.el9_3.1
- unbound-devel Fixed in 1.16.2-3.el9_3.1
- unbound-libs Fixed in 1.16.2-3.el9_3.1
Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
CloudLinux 8
- bind Fixed
A version is affected if any line below covers it.
- Affected before 32:9.11.36-11.el8_9.1
- Affected before 32:9.11.36-14.el8_10
- bind-chroot Fixed
A version is affected if any line below covers it.
- Affected before 32:9.11.36-11.el8_9.1
- Affected before 32:9.11.36-14.el8_10
- bind-devel Fixed
A version is affected if any line below covers it.
- Affected before 32:9.11.36-11.el8_9.1
- Affected before 32:9.11.36-14.el8_10
- bind-export-devel Fixed
A version is affected if any line below covers it.
- Affected before 32:9.11.36-11.el8_9.1
- Affected before 32:9.11.36-14.el8_10
- bind-export-libs Fixed
A version is affected if any line below covers it.
- Affected before 32:9.11.36-11.el8_9.1
- Affected before 32:9.11.36-14.el8_10
- bind-libs Fixed
A version is affected if any line below covers it.
- Affected before 32:9.11.36-11.el8_9.1
- Affected before 32:9.11.36-14.el8_10
- bind-libs-lite Fixed
A version is affected if any line below covers it.
- Affected before 32:9.11.36-11.el8_9.1
- Affected before 32:9.11.36-14.el8_10
- bind-license Fixed
A version is affected if any line below covers it.
- Affected before 32:9.11.36-11.el8_9.1
- Affected before 32:9.11.36-14.el8_10
- bind-lite-devel Fixed
A version is affected if any line below covers it.
- Affected before 32:9.11.36-11.el8_9.1
- Affected before 32:9.11.36-14.el8_10
- bind-pkcs11 Fixed
A version is affected if any line below covers it.
- Affected before 32:9.11.36-11.el8_9.1
- Affected before 32:9.11.36-14.el8_10
- bind-pkcs11-devel Fixed
A version is affected if any line below covers it.
- Affected before 32:9.11.36-11.el8_9.1
- Affected before 32:9.11.36-14.el8_10
- bind-pkcs11-libs Fixed
A version is affected if any line below covers it.
- Affected before 32:9.11.36-11.el8_9.1
- Affected before 32:9.11.36-14.el8_10
- bind-pkcs11-utils Fixed
A version is affected if any line below covers it.
- Affected before 32:9.11.36-11.el8_9.1
- Affected before 32:9.11.36-14.el8_10
- bind-sdb Fixed
A version is affected if any line below covers it.
- Affected before 32:9.11.36-11.el8_9.1
- Affected before 32:9.11.36-14.el8_10
- bind-sdb-chroot Fixed
A version is affected if any line below covers it.
- Affected before 32:9.11.36-11.el8_9.1
- Affected before 32:9.11.36-14.el8_10
- bind-utils Fixed
A version is affected if any line below covers it.
- Affected before 32:9.11.36-11.el8_9.1
- Affected before 32:9.11.36-14.el8_10
- bind9.16 Fixed in 32:9.16.23-0.16.el8_9.2.alma.1
- bind9.16-chroot Fixed in 32:9.16.23-0.16.el8_9.2.alma.1
- bind9.16-devel Fixed in 32:9.16.23-0.16.el8_9.2.alma.1
- bind9.16-dnssec-utils Fixed in 32:9.16.23-0.16.el8_9.2.alma.1
- bind9.16-doc Fixed in 32:9.16.23-0.16.el8_9.2.alma.1
- bind9.16-libs Fixed in 32:9.16.23-0.16.el8_9.2.alma.1
- bind9.16-license Fixed in 32:9.16.23-0.16.el8_9.2.alma.1
- bind9.16-utils Fixed in 32:9.16.23-0.16.el8_9.2.alma.1
- dnsmasq Fixed in 2.79-31.el8_9.2
- dnsmasq-utils Fixed in 2.79-31.el8_9.2
- python3-bind Fixed
A version is affected if any line below covers it.
- Affected before 32:9.11.36-11.el8_9.1
- Affected before 32:9.11.36-14.el8_10
- python3-bind9.16 Fixed in 32:9.16.23-0.16.el8_9.2.alma.1
- python3-unbound Fixed in 1.16.2-5.el8_9.2
- unbound Fixed in 1.16.2-5.el8_9.2
- unbound-devel Fixed in 1.16.2-5.el8_9.2
- unbound-libs Fixed in 1.16.2-5.el8_9.2
Derived from AlmaLinux 8. Partial coverage: only packages taken from AlmaLinux 8 are listed.
Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
CloudLinux 9
- bind Fixed
A version is affected if any line below covers it.
- Affected before 32:9.16.23-14.el9_3.4
- Affected before 32:9.16.23-18.el9_4.1
- bind-chroot Fixed
A version is affected if any line below covers it.
- Affected before 32:9.16.23-14.el9_3.4
- Affected before 32:9.16.23-18.el9_4.1
- bind-devel Fixed
A version is affected if any line below covers it.
- Affected before 32:9.16.23-14.el9_3.4
- Affected before 32:9.16.23-18.el9_4.1
- bind-dnssec-doc Fixed
A version is affected if any line below covers it.
- Affected before 32:9.16.23-14.el9_3.4
- Affected before 32:9.16.23-18.el9_4.1
- bind-dnssec-utils Fixed
A version is affected if any line below covers it.
- Affected before 32:9.16.23-14.el9_3.4
- Affected before 32:9.16.23-18.el9_4.1
- bind-doc Fixed
A version is affected if any line below covers it.
- Affected before 32:9.16.23-14.el9_3.4
- Affected before 32:9.16.23-18.el9_4.1
- bind-dyndb-ldap Fixed
A version is affected if any line below covers it.
- Affected before 11.9-8.el9_3.3.alma.1
- Affected before 11.9-9.el9_4.alma.1
- bind-libs Fixed
A version is affected if any line below covers it.
- Affected before 32:9.16.23-14.el9_3.4
- Affected before 32:9.16.23-18.el9_4.1
- bind-license Fixed
A version is affected if any line below covers it.
- Affected before 32:9.16.23-14.el9_3.4
- Affected before 32:9.16.23-18.el9_4.1
- bind-utils Fixed
A version is affected if any line below covers it.
- Affected before 32:9.16.23-14.el9_3.4
- Affected before 32:9.16.23-18.el9_4.1
- dnsmasq Fixed in 2.85-14.el9_3.1
- dnsmasq-utils Fixed in 2.85-14.el9_3.1
- python3-bind Fixed
A version is affected if any line below covers it.
- Affected before 32:9.16.23-14.el9_3.4
- Affected before 32:9.16.23-18.el9_4.1
- python3-unbound Fixed in 1.16.2-3.el9_3.1
- unbound Fixed in 1.16.2-3.el9_3.1
- unbound-devel Fixed in 1.16.2-3.el9_3.1
- unbound-libs Fixed in 1.16.2-3.el9_3.1
Derived from AlmaLinux 9. Partial coverage: only packages taken from AlmaLinux 9 are listed.
Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
Debian 12
- bind9 Fixed in 1:9.18.24-1
- dnsjava No fix yet
- dnsmasq Fixed in 2.90-4~deb12u1
- knot-resolver Fixed in 5.6.0-1+deb12u1
- pdns-recursor Fixed in 4.8.6-1
- systemd Fixed in 252.23-1~deb12u1
- unbound Fixed in 1.17.1-2+deb12u2
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- bind9 Fixed in 1:9.19.21-1
- dnsjava Fixed in 3.6.2-1
- dnsmasq Fixed in 2.90-1
- knot-resolver Fixed in 5.7.1-1
- pdns-recursor Fixed in 4.9.3-1
- systemd Fixed in 255.4-1
- unbound Fixed in 1.19.1-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- bind9 Fixed in 1:9.19.21-1
- dnsjava Fixed in 3.6.2-1
- dnsmasq Fixed in 2.90-1
- knot-resolver Fixed in 5.7.1-1
- pdns-recursor Fixed in 4.9.3-1
- systemd Fixed in 255.4-1
- unbound Fixed in 1.19.1-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 20.04 LTS
- bind9 Fixed in 1:9.16.48-0ubuntu0.20.04.1
- bind9-libs No fix yet
- dnsmasq Fixed in 2.90-0ubuntu0.20.04.1
- knot-resolver No fix yet
- unbound Fixed in 1.9.4-2ubuntu1.5
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 22.04 LTS
- bind9 Fixed in 1:9.18.18-0ubuntu0.22.04.2
- bind9-libs No fix yet
- dnsmasq Fixed in 2.90-0ubuntu0.22.04.1
- unbound Fixed in 1.13.1-1ubuntu5.4
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 24.04 LTS
- isc-dhcp No fix yet
- unbound Fixed in 1.19.1-1ubuntu1
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 25.10
- isc-dhcp No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 26.04 LTS
- isc-dhcp No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 14.04 LTS
- bind9 Fixed in 1:9.9.5.dfsg-3ubuntu0.19+esm12Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- unbound Fixed in 1.4.22-1ubuntu4.14.04.3+esm5Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 16.04 LTS
- bind9 Fixed in 1:9.10.3.dfsg.P4-8ubuntu1.19+esm8Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- dnsmasq Fixed in 2.90-0ubuntu0.16.04.1+esm1Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- knot-resolver No fix yet
- pdns-recursor No fix yet
- unbound Fixed in 1.5.8-1ubuntu1.1+esm5Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 18.04 LTS
- bind9 Fixed in 1:9.11.3+dfsg-1ubuntu1.19+esm3Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- dnsmasq Fixed in 2.90-0ubuntu0.18.04.1+esm1Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- knot-resolver No fix yet
- pdns-recursor No fix yet
- unbound Fixed in 1.6.7-1ubuntu2.6+esm6Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 20.04 LTS
- pdns-recursor No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 22.04 LTS
- knot-resolver No fix yet
- pdns-recursor No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.