The Closest Encloser Proof aspect of the DNS protocol (in RFC 5155 when RFC 9276 guidance…
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · High · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and Red Hat. Impact type from CWE-400.
Summary
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.
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 · 24
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:netapp:hci_baseboard_management_controller:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | NetApp |
| cpe:2.3:h:netapp:h300s:-:*:*:*:*:*:*:* | not specified by NVD | Running on | NetApp |
| cpe:2.3:h:netapp:h410c:-:*:*:*:*:*:*:* | not specified by NVD | Running on | NetApp |
| cpe:2.3:h:netapp:h410s:-:*:*:*:*:*:*:* | not specified by NVD | Running on | NetApp |
| cpe:2.3:h:netapp:h500s:-:*:*:*:*:*:*:* | not specified by NVD | Running on | NetApp |
| cpe:2.3:h:netapp:h700s:-:*:*:*:*:*:*:* | not specified by NVD | Running on | NetApp |
| cpe:2.3:a:netapp:active_iq_unified_manager:-:*:*:*:*:vmware_vsphere:*:* | not specified by NVD | Vulnerable | NetApp |
| cpe:2.3:o:netapp:bootstrap_os:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | NetApp |
| cpe:2.3:h:netapp:hci_compute_node:-:*:*:*:*:*:*:* | not specified by NVD | Running on | NetApp |
| cpe:2.3:a:powerdns:recursor:*:*:*:*:*:*:*:* | before 4.8.5; 4.9.0 to before 4.9.3; 5.0.0 to before 5.0.2 | Vulnerable | PowerDNS |
- cpe:2.3:a:netapp:hci_baseboard_management_controller:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
- cpe:2.3:h:netapp:h300s:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NetApp
- cpe:2.3:h:netapp:h410c:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NetApp
- cpe:2.3:h:netapp:h410s:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NetApp
- cpe:2.3:h:netapp:h500s:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NetApp
- cpe:2.3:h:netapp:h700s:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NetApp
- cpe:2.3:a:netapp:active_iq_unified_manager:-:*:*:*:*:vmware_vsphere:*:* Versions not specified by NVD Vulnerable ·NetApp
- cpe:2.3:o:netapp:bootstrap_os:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
- cpe:2.3:h:netapp:hci_compute_node:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NetApp
- cpe:2.3:a:powerdns:recursor:*:*:*:*:*:*:*:* Versions before 4.8.5; 4.9.0 to before 4.9.3; 5.0.0 to before 5.0.2 Vulnerable ·PowerDNS
Show 14 more CPE
| 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:8.2:*:*:*:*:*:*:* | 8.2 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux:8.4:*:*:*:*:*:*:* | 8.4 | Vulnerable | Red Hat |
| cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* | 10.0 | Vulnerable | Debian |
| cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* | 11.0 | Vulnerable | Debian |
| cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:* | 38 | Vulnerable | Fedoraproject |
| cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:* | 39 | Vulnerable | Fedoraproject |
| cpe:2.3:a:isc:bind:*:*:*:*:-:*:*:* | 9.0.0 to before 9.16.48 | Vulnerable | ISC |
| cpe:2.3:a:isc:bind:*:*:*:*:supported_preview:*:*:* | 9.9.3 to before 9.16.48 | Vulnerable | ISC |
| cpe:2.3:a:isc:bind:*:*:*:*:-:*:*:* | 9.18.0 to before 9.18.24 | Vulnerable | ISC |
| cpe:2.3:a:isc:bind:*:s1:*:*:supported_preview:*:*:* | 9.18.11 to before 9.18.24 | Vulnerable | ISC |
| cpe:2.3:a:isc:bind:*:*:*:*:-:*:*:* | 9.19.0 to before 9.19.21 | Vulnerable | ISC |
- 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:8.2:*:*:*:*:*:*:* Versions 8.2 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux:8.4:*:*:*:*:*:*:* Versions 8.4 Vulnerable ·Red Hat
- cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* Versions 10.0 Vulnerable ·Debian
- cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* Versions 11.0 Vulnerable ·Debian
- cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:* Versions 38 Vulnerable ·Fedoraproject
- cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:* Versions 39 Vulnerable ·Fedoraproject
- cpe:2.3:a:isc:bind:*:*:*:*:-:*:*:* Versions 9.0.0 to before 9.16.48 Vulnerable ·ISC
- cpe:2.3:a:isc:bind:*:*:*:*:supported_preview:*:*:* Versions 9.9.3 to before 9.16.48 Vulnerable ·ISC
- cpe:2.3:a:isc:bind:*:*:*:*:-:*:*:* Versions 9.18.0 to before 9.18.24 Vulnerable ·ISC
- cpe:2.3:a:isc:bind:*:s1:*:*:supported_preview:*:*:* Versions 9.18.11 to before 9.18.24 Vulnerable ·ISC
- cpe:2.3:a:isc:bind:*:*:*:*:-:*:*:* Versions 9.19.0 to before 9.19.21 Vulnerable ·ISC
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-2023-50868
- 2026-10-03 Alias added: GHSA-pv4h-p8jr-6cv2
References
Advisory 21
- https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2024-01.html
- https://kb.isc.org/docs/cve-2023-50868
- https://access.redhat.com/security/cve/CVE-2023-50868
- FEDORA-2024-2e26eccfcb
- FEDORA-2024-e24211eff0
- FEDORA-2024-21310568fa
- [debian-lts-announce] 20240221 [SECURITY] [DLA 3736-1] unbound security update
- FEDORA-2024-b0f9656a76
- FEDORA-2024-4e36df9dfd
- FEDORA-2024-499b9be35f
- FEDORA-2024-c36c448396
- FEDORA-2024-c967c7d287
- FEDORA-2024-e00eceb11c
- FEDORA-2024-fae88b73eb
- https://security.netapp.com/advisory/ntap-20240307-0008/
- [debian-lts-announce] 20240517 [SECURITY] [DLA 3816-1] bind9 security update
- https://lists.debian.org/debian-lts-announce/2024/09/msg00001.html
- https://lists.debian.org/debian-lts-announce/2024/11/msg00035.html
- https://lists.fedoraproject.org/archives/list/[email protected]/message/BUIP7T7Z4T3UHLXFWG6XIVDP4GYPD3AI/
- https://lists.fedoraproject.org/archives/list/[email protected]/message/HVRDSJVZKMCXKKPP6PNR62T7RWZ3YSDZ/
- https://lists.fedoraproject.org/archives/list/[email protected]/message/ZDZFMEKQTZ4L7RY46FCENWFB5MDT263R/
Other 7
- https://nlnetlabs.nl/news/2024/Feb/13/unbound-1.19.1-released/
- https://datatracker.ietf.org/doc/html/rfc5155
- https://gitlab.nic.cz/knot/knot-resolver/-/releases/v5.7.1
- https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2024q1/017430.html
- https://bugzilla.suse.com/show_bug.cgi?id=1219826
- [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
Sources
- CVE-2023-50868 · CVE Program
- CVE-2023-50868 · NVD
- FIRST EPSS
- GHSA-pv4h-p8jr-6cv2 · GitHub Advisory Database · CC BY 4.0
- CVE-2023-50868 · 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