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TI-2022-17872 Aliases CVE-2022-38178GHSA-349w-cgp3-287r

Memory leaks in EdDSA DNSSEC verification code

Priority MEDIUM 44CWE-401Published · Updated

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 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-401.

Summary

By spoofing the target resolver with responses that have a malformed EdDSA signature, an attacker can trigger a small memory leak. It is possible to gradually erode available memory to the point where named crashes for lack of resources.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.03112 87th percentileScored 2026-11-07
Fix Fixed Red Hat: 8 advisories

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

VendorProductAffected versionsFixed inStatusSource
ISCBIND9Open Source Branch 9.9 9.9.12 through versions up to and including 9.9.13; Open Source Branch 9.10 9.10.7 through versions up to and including 9.10.8; Open Source Branches 9.11 through 9.16 9.11.3 through versions before 9.16.33; Open Source Branch 9.18 9.18.0 through versions before 9.18.7; Supported Preview Branch 9.11-S 9.11.4-S1 through versions up to and including 9.11.37-S1; Supported Preview Branch 9.16-S 9.16.8-S1 through versions before 9.16.33-S1; Development Branch 9.19 9.19.0 through versions before 9.19.5—No fix listedCNA
  • BIND9 VendorISC Affected Open Source Branch 9.9 9.9.12 through versions up to and including 9.9.13; Open Source Branch 9.10 9.10.7 through versions up to and including 9.10.8; Open Source Branches 9.11 through 9.16 9.11.3 through versions before 9.16.33; Open Source Branch 9.18 9.18.0 through versions before 9.18.7; Supported Preview Branch 9.11-S 9.11.4-S1 through versions up to and including 9.11.37-S1; Supported Preview Branch 9.16-S 9.16.8-S1 through versions before 9.16.33-S1; Development Branch 9.19 9.19.0 through versions before 9.19.5 Fixed in — No fix listed CNA

CPE configurations NVD · 28

CPEVersionsRoleVendor
cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:*9.9.12 – 9.9.13; 9.10.7 – 9.10.8; 9.11.3 – 9.16.32VulnerableISC
cpe:2.3:a:isc:bind:9.11.3:s1:*:*:supported_preview:*:*:*9.11.3 s1VulnerableISC
cpe:2.3:a:isc:bind:9.11.3:s4:*:*:supported_preview:*:*:*9.11.3 s4VulnerableISC
cpe:2.3:a:isc:bind:9.11.5:s3:*:*:*:*:*:*9.11.5 s3VulnerableISC
cpe:2.3:a:isc:bind:9.11.5:s3:*:*:supported_preview:*:*:*9.11.5 s3VulnerableISC
cpe:2.3:a:isc:bind:9.11.5:s5:*:*:supported_preview:*:*:*9.11.5 s5VulnerableISC
cpe:2.3:a:isc:bind:9.11.5:s6:*:*:supported_preview:*:*:*9.11.5 s6VulnerableISC
cpe:2.3:a:isc:bind:9.11.6:s1:*:*:supported_preview:*:*:*9.11.6 s1VulnerableISC
cpe:2.3:a:isc:bind:9.11.7:s1:*:*:supported_preview:*:*:*9.11.7 s1VulnerableISC
cpe:2.3:a:isc:bind:9.11.8:s1:*:*:supported_preview:*:*:*9.11.8 s1VulnerableISC
  • cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:* Versions 9.9.12 – 9.9.13; 9.10.7 – 9.10.8; 9.11.3 – 9.16.32 Vulnerable ·ISC
  • cpe:2.3:a:isc:bind:9.11.3:s1:*:*:supported_preview:*:*:* Versions 9.11.3 s1 Vulnerable ·ISC
  • cpe:2.3:a:isc:bind:9.11.3:s4:*:*:supported_preview:*:*:* Versions 9.11.3 s4 Vulnerable ·ISC
  • cpe:2.3:a:isc:bind:9.11.5:s3:*:*:*:*:*:* Versions 9.11.5 s3 Vulnerable ·ISC
  • cpe:2.3:a:isc:bind:9.11.5:s3:*:*:supported_preview:*:*:* Versions 9.11.5 s3 Vulnerable ·ISC
  • cpe:2.3:a:isc:bind:9.11.5:s5:*:*:supported_preview:*:*:* Versions 9.11.5 s5 Vulnerable ·ISC
  • cpe:2.3:a:isc:bind:9.11.5:s6:*:*:supported_preview:*:*:* Versions 9.11.5 s6 Vulnerable ·ISC
  • cpe:2.3:a:isc:bind:9.11.6:s1:*:*:supported_preview:*:*:* Versions 9.11.6 s1 Vulnerable ·ISC
  • cpe:2.3:a:isc:bind:9.11.7:s1:*:*:supported_preview:*:*:* Versions 9.11.7 s1 Vulnerable ·ISC
  • cpe:2.3:a:isc:bind:9.11.8:s1:*:*:supported_preview:*:*:* Versions 9.11.8 s1 Vulnerable ·ISC
Show 18 more CPE
CPEVersionsRoleVendor
cpe:2.3:a:isc:bind:9.11.12:s1:*:*:supported_preview:*:*:*9.11.12 s1VulnerableISC
cpe:2.3:a:isc:bind:9.11.14-s1:*:*:*:preview:*:*:*9.11.14-s1VulnerableISC
cpe:2.3:a:isc:bind:9.11.19-s1:*:*:*:preview:*:*:*9.11.19-s1VulnerableISC
cpe:2.3:a:isc:bind:9.11.21:s1:*:*:supported_preview:*:*:*9.11.21 s1VulnerableISC
cpe:2.3:a:isc:bind:9.11.27:s1:*:*:supported_preview:*:*:*9.11.27 s1VulnerableISC
cpe:2.3:a:isc:bind:9.11.29:s1:*:*:supported_preview:*:*:*9.11.29 s1VulnerableISC
cpe:2.3:a:isc:bind:9.11.35:s1:*:*:supported_preview:*:*:*9.11.35 s1VulnerableISC
cpe:2.3:a:isc:bind:9.11.37:s1:*:*:supported_preview:*:*:*9.11.37 s1VulnerableISC
cpe:2.3:a:isc:bind:9.16.8:s1:*:*:supported_preview:*:*:*9.16.8 s1VulnerableISC
cpe:2.3:a:isc:bind:9.16.11:s1:*:*:supported_preview:*:*:*9.16.11 s1VulnerableISC
cpe:2.3:a:isc:bind:9.16.13:s1:*:*:supported_preview:*:*:*9.16.13 s1VulnerableISC
cpe:2.3:a:isc:bind:9.16.21:s1:*:*:supported_preview:*:*:*9.16.21 s1VulnerableISC
cpe:2.3:a:isc:bind:9.16.32:s1:*:*:supported_preview:*:*:*9.16.32 s1VulnerableISC
cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*11.0VulnerableDebian
cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*35VulnerableFedoraproject
cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:*36VulnerableFedoraproject
cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*37VulnerableFedoraproject
cpe:2.3:a:netapp:active_iq_unified_manager:-:*:*:*:*:vmware_vsphere:*:*not specified by NVDVulnerableNetApp
  • cpe:2.3:a:isc:bind:9.11.12:s1:*:*:supported_preview:*:*:* Versions 9.11.12 s1 Vulnerable ·ISC
  • cpe:2.3:a:isc:bind:9.11.14-s1:*:*:*:preview:*:*:* Versions 9.11.14-s1 Vulnerable ·ISC
  • cpe:2.3:a:isc:bind:9.11.19-s1:*:*:*:preview:*:*:* Versions 9.11.19-s1 Vulnerable ·ISC
  • cpe:2.3:a:isc:bind:9.11.21:s1:*:*:supported_preview:*:*:* Versions 9.11.21 s1 Vulnerable ·ISC
  • cpe:2.3:a:isc:bind:9.11.27:s1:*:*:supported_preview:*:*:* Versions 9.11.27 s1 Vulnerable ·ISC
  • cpe:2.3:a:isc:bind:9.11.29:s1:*:*:supported_preview:*:*:* Versions 9.11.29 s1 Vulnerable ·ISC
  • cpe:2.3:a:isc:bind:9.11.35:s1:*:*:supported_preview:*:*:* Versions 9.11.35 s1 Vulnerable ·ISC
  • cpe:2.3:a:isc:bind:9.11.37:s1:*:*:supported_preview:*:*:* Versions 9.11.37 s1 Vulnerable ·ISC
  • cpe:2.3:a:isc:bind:9.16.8:s1:*:*:supported_preview:*:*:* Versions 9.16.8 s1 Vulnerable ·ISC
  • cpe:2.3:a:isc:bind:9.16.11:s1:*:*:supported_preview:*:*:* Versions 9.16.11 s1 Vulnerable ·ISC
  • cpe:2.3:a:isc:bind:9.16.13:s1:*:*:supported_preview:*:*:* Versions 9.16.13 s1 Vulnerable ·ISC
  • cpe:2.3:a:isc:bind:9.16.21:s1:*:*:supported_preview:*:*:* Versions 9.16.21 s1 Vulnerable ·ISC
  • cpe:2.3:a:isc:bind:9.16.32:s1:*:*:supported_preview:*:*:* Versions 9.16.32 s1 Vulnerable ·ISC
  • cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* Versions 11.0 Vulnerable ·Debian
  • cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:* Versions 35 Vulnerable ·Fedoraproject
  • cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:* Versions 36 Vulnerable ·Fedoraproject
  • cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:* Versions 37 Vulnerable ·Fedoraproject
  • cpe:2.3:a:netapp:active_iq_unified_manager:-:*:*:*:*:vmware_vsphere:*:* Versions not specified by NVD Vulnerable ·NetApp

Remediation

Red Hat 8 advisories

  • RHSA-2022:8598 Released 2022-11-22 · Red Hat rating Important
    Red Hat Virtualization Host security update [ovirt-4.5.3-1]
    • Red Hat Virtualization 4 Hypervisor for RHEL 8 redhat-virtualization-host-4.5.3-202211170828_8.6, redhat-virtualization-host-image-update-4.5.3-202211170828_8.6
  • RHSA-2022:6780 Released 2022-10-04 · Red Hat rating Important
    bind security update
    • Red Hat Enterprise Linux AppStream EUS (v. 8.2) bind-32:9.11.13-6.el8_2.4, bind-chroot-32:9.11.13-6.el8_2.4, bind-devel-32:9.11.13-6.el8_2.4 +12
    • Red Hat Enterprise Linux BaseOS EUS (v. 8.2) bind-32:9.11.13-6.el8_2.4, bind-export-devel-32:9.11.13-6.el8_2.4, bind-export-libs-32:9.11.13-6.el8_2.4
  • RHSA-2022:6778 Released 2022-10-04 · Red Hat rating Important
    bind security update
    • Red Hat Enterprise Linux AppStream (v. 8) bind-32:9.11.36-3.el8_6.1, bind-chroot-32:9.11.36-3.el8_6.1, bind-devel-32:9.11.36-3.el8_6.1 +12
    • Red Hat Enterprise Linux BaseOS (v. 8) bind-32:9.11.36-3.el8_6.1, bind-export-devel-32:9.11.36-3.el8_6.1, bind-export-libs-32:9.11.36-3.el8_6.1
Show 5 more Red Hat advisories
  • RHSA-2022:6781 Released 2022-10-04 · Red Hat rating Important
    bind9.16 security update
    • Red Hat Enterprise Linux AppStream (v. 8) bind9.16-32:9.16.23-0.7.el8_6.1, bind9.16-chroot-32:9.16.23-0.7.el8_6.1, bind9.16-libs-32:9.16.23-0.7.el8_6.1 +2
    • Red Hat Enterprise Linux CRB (v. 8) bind9.16-devel-32:9.16.23-0.7.el8_6.1, bind9.16-dnssec-utils-32:9.16.23-0.7.el8_6.1, bind9.16-doc-32:9.16.23-0.7.el8_6.1 +2
  • RHSA-2022:6779 Released 2022-10-04 · Red Hat rating Important
    bind security update
    • Red Hat Enterprise Linux AppStream EUS (v.8.4) bind-32:9.11.26-4.el8_4.1, bind-chroot-32:9.11.26-4.el8_4.1, bind-devel-32:9.11.26-4.el8_4.1 +12
    • Red Hat Enterprise Linux BaseOS EUS (v.8.4) bind-32:9.11.26-4.el8_4.1, bind-export-devel-32:9.11.26-4.el8_4.1, bind-export-libs-32:9.11.26-4.el8_4.1
  • RHSA-2022:6763 Released 2022-10-03 · Red Hat rating Important
    bind security update
    • Red Hat CodeReady Linux Builder (v. 9) bind-devel-32:9.16.23-1.el9_0.1, bind-libs-32:9.16.23-1.el9_0.1
    • Red Hat Enterprise Linux AppStream (v. 9) bind-32:9.16.23-1.el9_0.1, bind-chroot-32:9.16.23-1.el9_0.1, bind-dnssec-doc-32:9.16.23-1.el9_0.1 +5
  • RHSA-2022:6765 Released 2022-10-03 · Red Hat rating Important
    bind security update
    • Red Hat Enterprise Linux Client (v. 7) bind-32:9.11.4-26.P2.el7_9.10, bind-export-libs-32:9.11.4-26.P2.el7_9.10, bind-libs-32:9.11.4-26.P2.el7_9.10 +3
    • Red Hat Enterprise Linux Client Optional (v. 7) bind-32:9.11.4-26.P2.el7_9.10, bind-chroot-32:9.11.4-26.P2.el7_9.10, bind-devel-32:9.11.4-26.P2.el7_9.10 +8
    • Red Hat Enterprise Linux ComputeNode Optional (v. 7) bind-32:9.11.4-26.P2.el7_9.10, bind-chroot-32:9.11.4-26.P2.el7_9.10, bind-devel-32:9.11.4-26.P2.el7_9.10 +8
    • Red Hat Enterprise Linux Server (v. 7) bind-32:9.11.4-26.P2.el7_9.10, bind-chroot-32:9.11.4-26.P2.el7_9.10, bind-export-libs-32:9.11.4-26.P2.el7_9.10 +11
    • Red Hat Enterprise Linux Server Optional (v. 7) bind-devel-32:9.11.4-26.P2.el7_9.10, bind-devel-32:9.11.4-26.P2.el7_9.10.ppc, bind-export-devel-32:9.11.4-26.P2.el7_9.10 +7
    • Red Hat Enterprise Linux Workstation (v. 7) bind-32:9.11.4-26.P2.el7_9.10, bind-chroot-32:9.11.4-26.P2.el7_9.10, bind-export-libs-32:9.11.4-26.P2.el7_9.10 +7
    • Red Hat Enterprise Linux Workstation Optional (v. 7) bind-devel-32:9.11.4-26.P2.el7_9.10, bind-export-devel-32:9.11.4-26.P2.el7_9.10, bind-lite-devel-32:9.11.4-26.P2.el7_9.10 +3
  • RHSA-2022:6764 Released 2022-10-03 · Red Hat rating Important
    bind security update
    • Red Hat Enterprise Linux AppStream E4S (v. 8.1) bind-32:9.11.4-26.P2.el8_1.6, bind-chroot-32:9.11.4-26.P2.el8_1.6, bind-devel-32:9.11.4-26.P2.el8_1.6 +12
    • Red Hat Enterprise Linux BaseOS E4S (v. 8.1) bind-32:9.11.4-26.P2.el8_1.6, bind-export-devel-32:9.11.4-26.P2.el8_1.6, bind-export-libs-32:9.11.4-26.P2.el8_1.6

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Advisory ·

    ISC BIND9 — FEDORA-2022-ef038365de

    4 records Highest priority Priority MEDIUM 3 MEDIUM, 1 LOW

    Other records, highest priority first

    • TI-2022-17871 Memory leak in ECDSA DNSSEC verification codePriority MEDIUM 45
    • TI-2022-02842 BIND 9 resolvers configured to answer from stale cache with zero stale-answer-client-timeout may terminate unexpectedlyPriority MEDIUM 43
    • TI-2022-02590 Processing large delegations may severely degrade resolver performancePriority LOW 34
    Show all 4 records → Advisory →
  • Advisory ·

    ISC BIND9 — FEDORA-2022-8268735e06

    4 records Highest priority Priority MEDIUM 3 MEDIUM, 1 LOW

    Other records, highest priority first

    • TI-2022-17871 Memory leak in ECDSA DNSSEC verification codePriority MEDIUM 45
    • TI-2022-02842 BIND 9 resolvers configured to answer from stale cache with zero stale-answer-client-timeout may terminate unexpectedlyPriority MEDIUM 43
    • TI-2022-02590 Processing large delegations may severely degrade resolver performancePriority LOW 34
    Show all 4 records → Advisory →
Show 2 more groups
  • Advisory ·

    ISC BIND9 — FEDORA-2022-b197d64471

    4 records Highest priority Priority MEDIUM 3 MEDIUM, 1 LOW

    Other records, highest priority first

    • TI-2022-17871 Memory leak in ECDSA DNSSEC verification codePriority MEDIUM 45
    • TI-2022-02842 BIND 9 resolvers configured to answer from stale cache with zero stale-answer-client-timeout may terminate unexpectedlyPriority MEDIUM 43
    • TI-2022-02590 Processing large delegations may severely degrade resolver performancePriority LOW 34
    Show all 4 records → Advisory →
  • Advisory ·

    ISC BIND9 — DSA-5235

    4 records Highest priority Priority MEDIUM 3 MEDIUM, 1 LOW

    Other records, highest priority first

    • TI-2022-17871 Memory leak in ECDSA DNSSEC verification codePriority MEDIUM 45
    • TI-2022-02842 BIND 9 resolvers configured to answer from stale cache with zero stale-answer-client-timeout may terminate unexpectedlyPriority MEDIUM 43
    • TI-2022-02590 Processing large delegations may severely degrade resolver performancePriority LOW 34
    Show all 4 records → Advisory →

Vendor assessments

Red Hat

Red Hat rating: Important. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat CodeReady Linux Builder (v. 9)Fixed RHSA-2022:6763
Red Hat Enterprise Linux AppStream (v. 8)Fixed RHSA-2022:6778, RHSA-2022:6781
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2022:6763
Red Hat Enterprise Linux AppStream E4S (v. 8.1)Fixed RHSA-2022:6764
Red Hat Enterprise Linux AppStream EUS (v. 8.2)Fixed RHSA-2022:6780
Red Hat Enterprise Linux AppStream EUS (v.8.4)Fixed RHSA-2022:6779
Red Hat Enterprise Linux BaseOS (v. 8)Fixed RHSA-2022:6778
Red Hat Enterprise Linux BaseOS E4S (v. 8.1)Fixed RHSA-2022:6764
Red Hat Enterprise Linux BaseOS EUS (v. 8.2)Fixed RHSA-2022:6780
Red Hat Enterprise Linux BaseOS EUS (v.8.4)Fixed RHSA-2022:6779
Red Hat Enterprise Linux CRB (v. 8)Fixed RHSA-2022:6781
Red Hat Enterprise Linux Client (v. 7)Fixed RHSA-2022:6765
Red Hat Enterprise Linux Client Optional (v. 7)Fixed RHSA-2022:6765
Red Hat Enterprise Linux ComputeNode Optional (v. 7)Fixed RHSA-2022:6765
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2022:6765
Red Hat Enterprise Linux Server Optional (v. 7)Fixed RHSA-2022:6765
Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2022:6765
Red Hat Enterprise Linux Workstation Optional (v. 7)Fixed RHSA-2022:6765
Red Hat Virtualization 4 Hypervisor for RHEL 8Fixed RHSA-2022:8598
Not affected: 3 products
  • RHEL 8-based RHEV-H for RHEV 4 (build requirements)
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 9

Timeline

  1. 2026-10-02 Threatist record created from CVE-2022-38178
  2. 2026-10-03 Alias added: GHSA-349w-cgp3-287r

References

Patch 1

Advisory 8

  • TI-2015-04610 Assertion failure in ISC BIND named via TKEY queries KEVCVSS 3.1HIGH 7.5
  • TI-2023-27571 Certain DNSSEC aspects of the DNS protocol (in RFC 4033, 4034, 4035, 6840, and related… CVSS 3.1HIGH 7.5
  • TI-2021-07476 A second vulnerability in BIND's GSSAPI security policy negotiation can be targeted by a buffer overflow attack CVSS 3.1CRITICAL 9.8
  • TI-2023-27773 The Closest Encloser Proof aspect of the DNS protocol (in RFC 5155 when RFC 9276 guidance… CVSS 3.1HIGH 7.5
  • TI-2020-06910 A logic error in code which checks TSIG validity can be used to trigger an assertion failure in tsig.c CVSS 3.1HIGH 7.5
  • TI-2016-02320 buffer.c in named in ISC BIND 9 before 9.9.9-P3, 9.10.x before 9.10.4-P3, and 9.11.x… CVSS 3.0HIGH 7.5
See all 192 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences