CVE-2022-38178 (GCVE-0-2022-38178)

Vulnerability from cvelistv5 – Published: 2022-09-21 10:15 – Updated: 2025-05-28 15:23
VLAI
Title
Memory leaks in EdDSA DNSSEC verification code
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.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-05-28 15:22 UTC
CWE
  • In BIND 9.9.12 -> 9.9.13, 9.10.7 -> 9.10.8, 9.11.3 -> 9.16.32, 9.18.0 -> 9.18.6, versions 9.11.4-S1 -> 9.11.37-S1, 9.16.8-S1 -> 9.16.32-S1 of the BIND Supported Preview Edition, and versions 9.19.0 -> 9.19.4 of the BIND 9.19 development branch, the DNSSEC verification code for the EdDSA algorithm leaks memory when there is a signature length mismatch.
  • CWE-401 - Missing Release of Memory after Effective Lifetime
Assigner
References
Impacted products
Vendor Product Version
ISC BIND9 Affected: Open Source Branch 9.9 9.9.12 through versions up to and including 9.9.13
Affected: Open Source Branch 9.10 9.10.7 through versions up to and including 9.10.8
Affected: Open Source Branches 9.11 through 9.16 9.11.3 through versions before 9.16.33
Affected: Open Source Branch 9.18 9.18.0 through versions before 9.18.7
Affected: Supported Preview Branch 9.11-S 9.11.4-S1 through versions up to and including 9.11.37-S1
Affected: Supported Preview Branch 9.16-S 9.16.8-S1 through versions before 9.16.33-S1
Affected: Development Branch 9.19 9.19.0 through versions before 9.19.5
Create a notification for this product.
Date Public
2022-09-21 00:00
Show details on NVD website
To clipboard 

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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.