Improper Handling of Exceptional Conditions

Affecting unbound package, versions <1.9.0-2+deb10u1

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Overview

Unbound before 1.9.4 accesses uninitialized memory, which allows remote attackers to trigger a crash via a crafted NOTIFY query. The source IP address of the query must match an access-control rule.

References

CVSS Score

7.5
high severity
  • Attack Vector
    Network
  • Attack Complexity
    Low
  • Privileges Required
    None
  • User Interaction
    None
  • Scope
    Unchanged
  • Confidentiality
    None
  • Integrity
    None
  • Availability
    High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVE
CVE-2019-16866
CWE
CWE-755 CWE-908
Snyk ID
SNYK-DEBIAN10-UNBOUND-471741
Disclosed
03 Oct, 2019
Published
03 Oct, 2019