Certain DNSSEC aspects of the DNS protocol (in RFC 4033, 4034, 4035, 6840, and related…
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and Red Hat. Impact type from CWE-770.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 17
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:* | 6.0 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* | 7.0 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* | 8.0 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:* | 9.0 | Vulnerable | Red Hat |
| cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:* | r2 sp1 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:* | r2 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_server_2016:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_server_2019:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_server_2022:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Microsoft |
- cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:* Versions 6.0 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:* Versions 9.0 Vulnerable ·Red Hat
- cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:* Versions r2 sp1 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:* Versions r2 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_server_2016:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_server_2019:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_server_2022:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Microsoft
Show 7 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:microsoft:windows_server_2022_23h2:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Microsoft |
| cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:* | 39 | Vulnerable | Fedoraproject |
| cpe:2.3:a:thekelleys:dnsmasq:*:*:*:*:*:*:*:* | before 2.90 | Vulnerable | Thekelleys |
| cpe:2.3:a:nic:knot_resolver:*:*:*:*:*:*:*:* | before 5.71 | Vulnerable | CZ.NIC |
| cpe:2.3:a:powerdns:recursor:*:*:*:*:*:*:*:* | 4.8.0 to before 4.8.6; 4.9.0 to before 4.9.3; 5.0.0 to before 5.0.2 | Vulnerable | PowerDNS |
| cpe:2.3:a:isc:bind:*:*:*:*:-:*:*:* | 9.0.0 – 9.16.46; 9.18.0 – 9.18.22; 9.19.0 – 9.19.20 | Vulnerable | ISC |
| cpe:2.3:a:nlnetlabs:unbound:*:*:*:*:*:*:*:* | before 1.19.1 | Vulnerable | NLNETLABS |
- cpe:2.3:o:microsoft:windows_server_2022_23h2:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Microsoft
- cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:* Versions 39 Vulnerable ·Fedoraproject
- cpe:2.3:a:thekelleys:dnsmasq:*:*:*:*:*:*:*:* Versions before 2.90 Vulnerable ·Thekelleys
- cpe:2.3:a:nic:knot_resolver:*:*:*:*:*:*:*:* Versions before 5.71 Vulnerable ·CZ.NIC
- cpe:2.3:a:powerdns:recursor:*:*:*:*:*:*:*:* Versions 4.8.0 to before 4.8.6; 4.9.0 to before 4.9.3; 5.0.0 to before 5.0.2 Vulnerable ·PowerDNS
- cpe:2.3:a:isc:bind:*:*:*:*:-:*:*:* Versions 9.0.0 – 9.16.46; 9.18.0 – 9.18.22; 9.19.0 – 9.19.20 Vulnerable ·ISC
- cpe:2.3:a:nlnetlabs:unbound:*:*:*:*:*:*:*:* Versions before 1.19.1 Vulnerable ·NLNETLABS
Remediation
Red Hat 32 advisories
- RHSA-2025:0039 Released 2025-01-06 · Red Hat rating Importantbind and bind-dyndb-ldap security update
- Red Hat Enterprise Linux Server -EXTENSION(v. 6 ELS-EXTENSION) bind-32:9.8.2-0.68.rc1.el6_10.14, bind-chroot-32:9.8.2-0.68.rc1.el6_10.14, bind-dyndb-ldap-2.3-8.el6_10.1 +2
- Red Hat Enterprise Linux Server Optional -EXTENSION (v. 6 ELS -EXTENSION) bind-devel-32:9.8.2-0.68.rc1.el6_10.14, bind-sdb-32:9.8.2-0.68.rc1.el6_10.14
- RHSA-2024:11003 Released 2024-12-12 · Red Hat rating Importantunbound security update
- Red Hat Enterprise Linux Server (v. 7 ELS) unbound-1.6.6-5.el7_9.1, unbound-libs-1.6.6-5.el7_9.1, unbound-libs-1.6.6-5.el7_9.1.ppc
- Red Hat Enterprise Linux Server Optional (v. 7 ELS) unbound-devel-1.6.6-5.el7_9.1, unbound-devel-1.6.6-5.el7_9.1.ppc, unbound-python-1.6.6-5.el7_9.1
- RHSA-2024:3929 Released 2024-06-13 · Red Hat rating Importantdnsmasq security update
- Red Hat Enterprise Linux AppStream AUS (v. 8.2) dnsmasq-2.79-11.el8_2.3, dnsmasq-utils-2.79-11.el8_2.3
Show 29 more Red Hat advisories
- RHSA-2024:3877 Released 2024-06-13 · Red Hat rating Importantdnsmasq security update
- Red Hat Enterprise Linux AppStream AUS (v.8.4) dnsmasq-2.79-15.el8_4.2, dnsmasq-utils-2.79-15.el8_4.2
- Red Hat Enterprise Linux AppStream E4S (v.8.4) dnsmasq-2.79-15.el8_4.2, dnsmasq-utils-2.79-15.el8_4.2
- Red Hat Enterprise Linux AppStream TUS (v.8.4) dnsmasq-2.79-15.el8_4.2, dnsmasq-utils-2.79-15.el8_4.2
- RHSA-2024:3741 Released 2024-06-10 · Red Hat rating Importantbind, bind-dyndb-ldap, and dhcp security update
- Red Hat Enterprise Linux Client (v. 7) bind-32:9.11.4-26.P2.el7_9.16, bind-export-libs-32:9.11.4-26.P2.el7_9.16, bind-libs-32:9.11.4-26.P2.el7_9.16 +7
- Red Hat Enterprise Linux Client Optional (v. 7) bind-32:9.11.4-26.P2.el7_9.16, bind-chroot-32:9.11.4-26.P2.el7_9.16, bind-devel-32:9.11.4-26.P2.el7_9.16 +11
- Red Hat Enterprise Linux ComputeNode Optional (v. 7) bind-32:9.11.4-26.P2.el7_9.16, bind-chroot-32:9.11.4-26.P2.el7_9.16, bind-devel-32:9.11.4-26.P2.el7_9.16 +11
- Red Hat Enterprise Linux Server (v. 7) bind-32:9.11.4-26.P2.el7_9.16, bind-chroot-32:9.11.4-26.P2.el7_9.16, bind-dyndb-ldap-11.1-7.el7_9.1 +17
- Red Hat Enterprise Linux Server Optional (v. 7) bind-devel-32:9.11.4-26.P2.el7_9.16, bind-devel-32:9.11.4-26.P2.el7_9.16.ppc, bind-export-devel-32:9.11.4-26.P2.el7_9.16 +9
- Red Hat Enterprise Linux Workstation (v. 7) bind-32:9.11.4-26.P2.el7_9.16, bind-chroot-32:9.11.4-26.P2.el7_9.16, bind-dyndb-ldap-11.1-7.el7_9.1 +12
- Red Hat Enterprise Linux Workstation Optional (v. 7) bind-devel-32:9.11.4-26.P2.el7_9.16, bind-export-devel-32:9.11.4-26.P2.el7_9.16, bind-lite-devel-32:9.11.4-26.P2.el7_9.16 +4
- RHSA-2024:3271 Released 2024-05-22 · Red Hat rating Importantbind and dhcp security update
- Red Hat Enterprise Linux AppStream (v. 8) bind-32:9.11.36-14.el8_10, bind-chroot-32:9.11.36-14.el8_10, bind-devel-32:9.11.36-14.el8_10 +12
- Red Hat Enterprise Linux BaseOS (v. 8) bind-32:9.11.36-14.el8_10, bind-export-devel-32:9.11.36-14.el8_10, bind-export-libs-32:9.11.36-14.el8_10
- RHSA-2024:2890 Released 2024-05-16 · Red Hat rating Importantbind and dhcp security update
- Red Hat Enterprise Linux AppStream AUS (v. 8.2) bind-32:9.11.13-6.el8_2.7, bind-chroot-32:9.11.13-6.el8_2.7, bind-devel-32:9.11.13-6.el8_2.7 +12
- Red Hat Enterprise Linux BaseOS AUS (v. 8.2) bind-32:9.11.13-6.el8_2.7, bind-export-devel-32:9.11.13-6.el8_2.7, bind-export-libs-32:9.11.13-6.el8_2.7 +6
- RHSA-2024:2821 Released 2024-05-13 · Red Hat rating Importantbind and dhcp security update
- Red Hat Enterprise Linux AppStream AUS (v.8.4) bind-32:9.11.26-4.el8_4.4, bind-chroot-32:9.11.26-4.el8_4.4, bind-devel-32:9.11.26-4.el8_4.4 +12
- Red Hat Enterprise Linux AppStream E4S (v.8.4) bind-32:9.11.26-4.el8_4.4, bind-chroot-32:9.11.26-4.el8_4.4, bind-devel-32:9.11.26-4.el8_4.4 +12
- Red Hat Enterprise Linux AppStream TUS (v.8.4) bind-32:9.11.26-4.el8_4.4, bind-chroot-32:9.11.26-4.el8_4.4, bind-devel-32:9.11.26-4.el8_4.4 +12
- Red Hat Enterprise Linux BaseOS AUS (v.8.4) bind-32:9.11.26-4.el8_4.4, bind-export-devel-32:9.11.26-4.el8_4.4, bind-export-libs-32:9.11.26-4.el8_4.4 +6
- Red Hat Enterprise Linux BaseOS E4S (v.8.4) bind-32:9.11.26-4.el8_4.4, bind-export-devel-32:9.11.26-4.el8_4.4, bind-export-libs-32:9.11.26-4.el8_4.4 +6
- Red Hat Enterprise Linux BaseOS TUS (v.8.4) bind-32:9.11.26-4.el8_4.4, bind-export-devel-32:9.11.26-4.el8_4.4, bind-export-libs-32:9.11.26-4.el8_4.4 +6
- RHSA-2024:2721 Released 2024-05-07 · Red Hat rating Importantbind and dhcp security update
- Red Hat Enterprise Linux AppStream EUS (v.8.8) bind-32:9.11.36-8.el8_8.4, bind-chroot-32:9.11.36-8.el8_8.4, bind-devel-32:9.11.36-8.el8_8.4 +12
- Red Hat Enterprise Linux BaseOS EUS (v.8.8) bind-32:9.11.36-8.el8_8.4, bind-export-devel-32:9.11.36-8.el8_8.4, bind-export-libs-32:9.11.36-8.el8_8.4 +6
- RHSA-2024:2720 Released 2024-05-07 · Red Hat rating Importantbind and dhcp security update
- Red Hat Enterprise Linux AppStream EUS (v.8.6) bind-32:9.11.36-3.el8_6.7, bind-chroot-32:9.11.36-3.el8_6.7, bind-devel-32:9.11.36-3.el8_6.7 +12
- Red Hat Enterprise Linux BaseOS EUS (v.8.6) bind-32:9.11.36-3.el8_6.7, bind-export-devel-32:9.11.36-3.el8_6.7, bind-export-libs-32:9.11.36-3.el8_6.7 +6
- RHSA-2024:2696 Released 2024-05-06 · Red Hat rating Importantunbound security update
- Red Hat Enterprise Linux AppStream AUS (v. 8.2) python3-unbound-1.7.3-12.el8_2.1, unbound-1.7.3-12.el8_2.1, unbound-devel-1.7.3-12.el8_2.1 +1
- Red Hat Enterprise Linux AppStream E4S (v. 8.2) python3-unbound-1.7.3-12.el8_2.1, unbound-1.7.3-12.el8_2.1, unbound-devel-1.7.3-12.el8_2.1 +1
- Red Hat Enterprise Linux AppStream TUS (v. 8.2) python3-unbound-1.7.3-12.el8_2.1, unbound-1.7.3-12.el8_2.1, unbound-devel-1.7.3-12.el8_2.1 +1
- RHSA-2024:2587 Released 2024-04-30 · Red Hat rating Importantunbound security update
- Red Hat Enterprise Linux AppStream AUS (v.8.4) python3-unbound-1.7.3-15.el8_4.1, unbound-1.7.3-15.el8_4.1, unbound-devel-1.7.3-15.el8_4.1 +1
- Red Hat Enterprise Linux AppStream E4S (v.8.4) python3-unbound-1.7.3-15.el8_4.1, unbound-1.7.3-15.el8_4.1, unbound-devel-1.7.3-15.el8_4.1 +1
- Red Hat Enterprise Linux AppStream TUS (v.8.4) python3-unbound-1.7.3-15.el8_4.1, unbound-1.7.3-15.el8_4.1, unbound-devel-1.7.3-15.el8_4.1 +1
- RHSA-2024:2551 Released 2024-04-30 · Red Hat rating Importantbind security update
- Red Hat Enterprise Linux AppStream (v. 9) bind-32:9.16.23-18.el9_4.1, bind-chroot-32:9.16.23-18.el9_4.1, bind-dnssec-doc-32:9.16.23-18.el9_4.1 +6
- Red Hat Enterprise Linux CRB (v. 9) bind-devel-32:9.16.23-18.el9_4.1, bind-doc-32:9.16.23-18.el9_4.1, bind-libs-32:9.16.23-18.el9_4.1
- RHSA-2024:1803 Released 2024-04-15 · Red Hat rating Importantbind and bind-dyndb-ldap security updates
- Red Hat CodeReady Linux Builder EUS (v.9.2) bind-devel-32:9.16.23-11.el9_2.4, bind-doc-32:9.16.23-11.el9_2.4, bind-libs-32:9.16.23-11.el9_2.4
- Red Hat Enterprise Linux AppStream EUS (v.9.2) bind-32:9.16.23-11.el9_2.4, bind-chroot-32:9.16.23-11.el9_2.4, bind-dnssec-doc-32:9.16.23-11.el9_2.4 +6
- RHSA-2024:1804 Released 2024-04-15 · Red Hat rating Importantunbound security update
- Red Hat Enterprise Linux AppStream EUS (v.8.6) python3-unbound-1.7.3-17.el8_6.4, unbound-1.7.3-17.el8_6.4, unbound-devel-1.7.3-17.el8_6.4 +1
- RHSA-2024:1800 Released 2024-04-15 · Red Hat rating Importantbind and bind-dyndb-ldap security updates
- Red Hat CodeReady Linux Builder EUS (v.9.0) bind-devel-32:9.16.23-1.el9_0.5, bind-libs-32:9.16.23-1.el9_0.5
- Red Hat Enterprise Linux AppStream EUS (v.9.0) bind-32:9.16.23-1.el9_0.5, bind-chroot-32:9.16.23-1.el9_0.5, bind-dnssec-doc-32:9.16.23-1.el9_0.5 +6
- RHSA-2024:1801 Released 2024-04-15 · Red Hat rating Importantunbound security update
- Red Hat Enterprise Linux AppStream EUS (v.9.0) python3-unbound-1.13.1-13.el9_0.4, unbound-1.13.1-13.el9_0.4, unbound-libs-1.13.1-13.el9_0.4
- RHSA-2024:1782 Released 2024-04-12 · Red Hat rating Importantbind and dhcp security update
- Red Hat Enterprise Linux AppStream (v. 8) bind-32:9.11.36-11.el8_9.1, bind-chroot-32:9.11.36-11.el8_9.1, bind-devel-32:9.11.36-11.el8_9.1 +12
- Red Hat Enterprise Linux BaseOS (v. 8) bind-32:9.11.36-11.el8_9.1, bind-export-devel-32:9.11.36-11.el8_9.1, bind-export-libs-32:9.11.36-11.el8_9.1
- RHSA-2024:1789 Released 2024-04-11 · Red Hat rating Importantbind security update
- Red Hat CodeReady Linux Builder (v. 9) bind-devel-32:9.16.23-14.el9_3.4, bind-doc-32:9.16.23-14.el9_3.4, bind-libs-32:9.16.23-14.el9_3.4
- Red Hat Enterprise Linux AppStream (v. 9) bind-32:9.16.23-14.el9_3.4, bind-chroot-32:9.16.23-14.el9_3.4, bind-dnssec-doc-32:9.16.23-14.el9_3.4 +6
- RHSA-2024:1781 Released 2024-04-11 · Red Hat rating Importantbind9.16 security update
- Red Hat CodeReady Linux Builder (v. 8) bind9.16-devel-32:9.16.23-0.16.el8_9.2, bind9.16-doc-32:9.16.23-0.16.el8_9.2, bind9.16-libs-32:9.16.23-0.16.el8_9.2
- Red Hat Enterprise Linux AppStream (v. 8) bind9.16-32:9.16.23-0.16.el8_9.2, bind9.16-chroot-32:9.16.23-0.16.el8_9.2, bind9.16-dnssec-utils-32:9.16.23-0.16.el8_9.2 +4
- RHSA-2024:1648 Released 2024-04-02 · Red Hat rating Importantbind9.16 security update
- Red Hat CodeReady Linux Builder EUS (v.8.8) bind9.16-devel-32:9.16.23-0.14.el8_8.4, bind9.16-doc-32:9.16.23-0.14.el8_8.4, bind9.16-libs-32:9.16.23-0.14.el8_8.4
- Red Hat Enterprise Linux AppStream EUS (v.8.8) bind9.16-32:9.16.23-0.14.el8_8.4, bind9.16-chroot-32:9.16.23-0.14.el8_8.4, bind9.16-dnssec-utils-32:9.16.23-0.14.el8_8.4 +4
- RHSA-2024:1647 Released 2024-04-02 · Red Hat rating Importantbind9.16 security update
- Red Hat CodeReady Linux Builder EUS (v.8.6) bind9.16-devel-32:9.16.23-0.7.el8_6.5, bind9.16-dnssec-utils-32:9.16.23-0.7.el8_6.5, bind9.16-doc-32:9.16.23-0.7.el8_6.5 +2
- Red Hat Enterprise Linux AppStream EUS (v.8.6) bind9.16-32:9.16.23-0.7.el8_6.5, bind9.16-chroot-32:9.16.23-0.7.el8_6.5, bind9.16-libs-32:9.16.23-0.7.el8_6.5 +2
- RHSA-2024:1545 Released 2024-03-27 · Red Hat rating Importantdnsmasq security update
- Red Hat Enterprise Linux AppStream EUS (v.8.6) dnsmasq-2.79-21.el8_6.5, dnsmasq-utils-2.79-21.el8_6.5
- RHSA-2024:1544 Released 2024-03-27 · Red Hat rating Importantdnsmasq security and bug fix update
- Red Hat Enterprise Linux AppStream EUS (v.8.8) dnsmasq-2.79-26.el8_8.4, dnsmasq-utils-2.79-26.el8_8.4
- RHSA-2024:1543 Released 2024-03-27 · Red Hat rating Importantdnsmasq security update
- Red Hat Enterprise Linux AppStream EUS (v.9.0) dnsmasq-2.85-3.el9_0.1, dnsmasq-utils-2.85-3.el9_0.1
- RHSA-2024:1522 Released 2024-03-26 · Red Hat rating Importantdnsmasq security update
- Red Hat Enterprise Linux AppStream EUS (v.9.2) dnsmasq-2.85-6.el9_2.3, dnsmasq-utils-2.85-6.el9_2.3
- RHSA-2024:1335 Released 2024-03-14 · Red Hat rating Importantdnsmasq security update
- Red Hat Enterprise Linux AppStream (v. 8) dnsmasq-2.79-31.el8_9.2, dnsmasq-utils-2.79-31.el8_9.2
- RHSA-2024:1334 Released 2024-03-14 · Red Hat rating Importantdnsmasq security update
- Red Hat Enterprise Linux AppStream (v. 9) dnsmasq-2.85-14.el9_3.1, dnsmasq-utils-2.85-14.el9_3.1
- RHSA-2024:0982 Released 2024-02-27 · Red Hat rating Importantunbound security update
- Red Hat Enterprise Linux AppStream EUS (v.8.8) python3-unbound-1.16.2-5.el8_8.1, unbound-1.16.2-5.el8_8.1, unbound-devel-1.16.2-5.el8_8.1 +1
- RHSA-2024:0981 Released 2024-02-26 · Red Hat rating Importantunbound security update
- Red Hat CodeReady Linux Builder EUS (v.9.2) unbound-devel-1.16.2-3.el9_2.1
- Red Hat Enterprise Linux AppStream EUS (v.9.2) python3-unbound-1.16.2-3.el9_2.1, unbound-1.16.2-3.el9_2.1, unbound-libs-1.16.2-3.el9_2.1
- RHSA-2024:0977 Released 2024-02-26 · Red Hat rating Importantunbound security update
- Red Hat CodeReady Linux Builder (v. 9) unbound-devel-1.16.2-3.el9_3.1
- Red Hat Enterprise Linux AppStream (v. 9) python3-unbound-1.16.2-3.el9_3.1, unbound-1.16.2-3.el9_3.1, unbound-libs-1.16.2-3.el9_3.1
- RHSA-2024:0965 Released 2024-02-26 · Red Hat rating Importantunbound security update
- Red Hat Enterprise Linux AppStream (v. 8) python3-unbound-1.16.2-5.el8_9.2, unbound-1.16.2-5.el8_9.2, unbound-devel-1.16.2-5.el8_9.2 +1
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat CodeReady Linux Builder (v. 8) | Fixed | RHSA-2024:1781 |
| Red Hat CodeReady Linux Builder (v. 9) | Fixed | RHSA-2024:0977, RHSA-2024:1789 |
| Red Hat CodeReady Linux Builder EUS (v.8.6) | Fixed | RHSA-2024:1647 |
| Red Hat CodeReady Linux Builder EUS (v.8.8) | Fixed | RHSA-2024:1648 |
| Red Hat CodeReady Linux Builder EUS (v.9.0) | Fixed | RHSA-2024:1800 |
| Red Hat CodeReady Linux Builder EUS (v.9.2) | Fixed | RHSA-2024:0981, RHSA-2024:1803 |
| Red Hat Enterprise Linux AppStream (v. 8) | Fixed | RHSA-2024:0965, RHSA-2024:1335, RHSA-2024:1781, RHSA-2024:1782, RHSA-2024:3271 |
| Red Hat Enterprise Linux AppStream (v. 9) | Fixed | RHSA-2024:0977, RHSA-2024:1334, RHSA-2024:1789, RHSA-2024:2551 |
| Red Hat Enterprise Linux AppStream AUS (v. 8.2) | Fixed | RHSA-2024:2696, RHSA-2024:2890, RHSA-2024:3929 |
| Red Hat Enterprise Linux AppStream AUS (v.8.4) | Fixed | RHSA-2024:2587, RHSA-2024:2821, RHSA-2024:3877 |
| Red Hat Enterprise Linux AppStream E4S (v. 8.2) | Fixed | RHSA-2024:2696 |
| Red Hat Enterprise Linux AppStream E4S (v.8.4) | Fixed | RHSA-2024:2587, RHSA-2024:2821, RHSA-2024:3877 |
| Red Hat Enterprise Linux AppStream EUS (v.8.6) | Fixed | RHSA-2024:1545, RHSA-2024:1647, RHSA-2024:1804, RHSA-2024:2720 |
| Red Hat Enterprise Linux AppStream EUS (v.8.8) | Fixed | RHSA-2024:0982, RHSA-2024:1544, RHSA-2024:1648, RHSA-2024:2721 |
| Red Hat Enterprise Linux AppStream EUS (v.9.0) | Fixed | RHSA-2024:1543, RHSA-2024:1800, RHSA-2024:1801 |
| Red Hat Enterprise Linux AppStream EUS (v.9.2) | Fixed | RHSA-2024:0981, RHSA-2024:1522, RHSA-2024:1803 |
| Red Hat Enterprise Linux AppStream TUS (v. 8.2) | Fixed | RHSA-2024:2696 |
| Red Hat Enterprise Linux AppStream TUS (v.8.4) | Fixed | RHSA-2024:2587, RHSA-2024:2821, RHSA-2024:3877 |
| Red Hat Enterprise Linux BaseOS (v. 8) | Fixed | RHSA-2024:1782, RHSA-2024:3271 |
| Red Hat Enterprise Linux BaseOS AUS (v. 8.2) | Fixed | RHSA-2024:2890 |
| Red Hat Enterprise Linux BaseOS AUS (v.8.4) | Fixed | RHSA-2024:2821 |
| Red Hat Enterprise Linux BaseOS E4S (v.8.4) | Fixed | RHSA-2024:2821 |
| Red Hat Enterprise Linux BaseOS EUS (v.8.6) | Fixed | RHSA-2024:2720 |
| Red Hat Enterprise Linux BaseOS EUS (v.8.8) | Fixed | RHSA-2024:2721 |
| Red Hat Enterprise Linux BaseOS TUS (v.8.4) | Fixed | RHSA-2024:2821 |
| Red Hat Enterprise Linux CRB (v. 9) | Fixed | RHSA-2024:2551 |
| Red Hat Enterprise Linux Client (v. 7) | Fixed | RHSA-2024:3741 |
| Red Hat Enterprise Linux Client Optional (v. 7) | Fixed | RHSA-2024:3741 |
| Red Hat Enterprise Linux ComputeNode Optional (v. 7) | Fixed | RHSA-2024:3741 |
| Red Hat Enterprise Linux Server (v. 7 ELS) | Fixed | RHSA-2024:11003 |
| Red Hat Enterprise Linux Server (v. 7) | Fixed | RHSA-2024:3741 |
| Red Hat Enterprise Linux Server -EXTENSION(v. 6 ELS-EXTENSION) | Fixed | RHSA-2025:0039 |
| Red Hat Enterprise Linux Server Optional (v. 7 ELS) | Fixed | RHSA-2024:11003 |
| Red Hat Enterprise Linux Server Optional (v. 7) | Fixed | RHSA-2024:3741 |
| Red Hat Enterprise Linux Server Optional -EXTENSION (v. 6 ELS -EXTENSION) | Fixed | RHSA-2025:0039 |
| Red Hat Enterprise Linux Workstation (v. 7) | Fixed | RHSA-2024:3741 |
| Red Hat Enterprise Linux Workstation Optional (v. 7) | Fixed | RHSA-2024:3741 |
Not affected: 4 products
- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 9
- Red Hat Enterprise Linux BaseOS (v. 8)
Timeline
- 2026-10-02 Threatist record created from CVE-2023-50387
- 2026-10-03 Alias added: GHSA-8459-gg55-8qjj
References
Patch 3
Advisory 20
- https://www.athene-center.de/aktuelles/key-trap
- https://nlnetlabs.nl/news/2024/Feb/13/unbound-1.19.1-released/
- https://kb.isc.org/docs/cve-2023-50387
- https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2024-01.html
- https://news.ycombinator.com/item?id=39367411
- https://www.securityweek.com/keytrap-dns-attack-could-disable-large-parts-of-internet-researchers/
- https://www.isc.org/blogs/2024-bind-security-release/
- https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2024q1/017430.html
- https://access.redhat.com/security/cve/CVE-2023-50387
- https://www.athene-center.de/fileadmin/content/PDF/Technical_Report_KeyTrap.pdf
- FEDORA-2024-2e26eccfcb
- FEDORA-2024-e24211eff0
- FEDORA-2024-21310568fa
- FEDORA-2024-b0f9656a76
- FEDORA-2024-4e36df9dfd
- FEDORA-2024-499b9be35f
- FEDORA-2024-c36c448396
- FEDORA-2024-c967c7d287
- FEDORA-2024-e00eceb11c
- FEDORA-2024-fae88b73eb
Other 7
- https://news.ycombinator.com/item?id=39372384
- https://bugzilla.suse.com/show_bug.cgi?id=1219823
- [oss-security] 20240216 Re: Unbound: disclosure of CVE-2023-50387 and CVE-2023-50868 DNSSEC validation vulnerabilities
- [oss-security] 20240216 Re: Unbound: disclosure of CVE-2023-50387 and CVE-2023-50868 DNSSEC validation vulnerabilities
- [debian-lts-announce] 20240221 [SECURITY] [DLA 3736-1] unbound security update
- https://security.netapp.com/advisory/ntap-20240307-0007/
- [debian-lts-announce] 20240517 [SECURITY] [DLA 3816-1] bind9 security update
Sources
- CVE-2023-50387 · CVE Program
- CVE-2023-50387 · NVD
- FIRST EPSS
- GHSA-8459-gg55-8qjj · GitHub Advisory Database · CC BY 4.0
- CVE-2023-50387 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences