Security readout for executives and security teams
This flaw can let an unauthenticated network attacker slowly drain memory from affected ISC BIND9 DNS resolvers by sending spoofed DNS responses with malformed EdDSA DNSSEC signatures. The business impact is availability: DNS service can crash if memory is exhausted, disrupting name resolution for dependent users and applications. Exposure is most likely on affected ISC BIND9 named deployments acting as DNSSEC-validating resolvers. The source bundle lists vulnerable open source, supported preview, and development BIND9 branches, including releases before 9.16.33, 9.18.7, and 9.19.5. Treat as high priority for DNS infrastructure because successful exploitation can cause DNS outage without authentication. Patch affected BIND9 resolvers during the next urgent maintenance window, faster for shared, external, or business-critical recursive DNS services. Mitigation focus: Upgrade BIND9 to the vendor-fixed release for your maintained branch.; Apply Debian, Fedora, Gentoo, NetApp, or other vendor packages where applicable.; Prioritize internet-facing or shared recursive DNS resolvers performing DNSSEC validation..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
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Open ATT&CK lookupCVE-2022-38178 mapping review
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Open ATT&CK lookup- Severity
- High
- CVSS
- 7.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CNA and ADP enrichment extracted from CVE v5
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CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H3.93.6Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.5HighVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://kb.isc.org/docs/cve-2022-38178CVE reference
- DSA-5235CVE reference · vendor-advisory
- FEDORA-2022-ef038365deCVE reference · vendor-advisory
- FEDORA-2022-8268735e06CVE reference · vendor-advisory
- FEDORA-2022-b197d64471CVE reference · vendor-advisory
- [debian-lts-announce] 20221005 [SECURITY] [DLA 3138-1] bind9 security updateCVE reference · mailing-list
- GLSA-202210-25CVE reference · vendor-advisory
- https://security.netapp.com/advisory/ntap-20221228-0009/CVE reference
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Missing Release of Memory after Effective Lifetime
Missing Release of Memory after Effective Lifetime represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.