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Alpine Linux: CVE-2023-50387: Allocation of Resources Without Limits or Throttling

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Alpine Linux: CVE-2023-50387: Allocation of Resources Without Limits or Throttling

Severity
8
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:C)
Published
02/14/2024
Created
04/09/2024
Added
03/26/2024
Modified
04/09/2024

Description

Certain DNSSEC aspects of the DNS protocol (in RFC 4033, 4034, 4035, 6840, and related RFCs) allow remote attackers to cause a denial of service (CPU consumption) via one or more DNSSEC responses, aka the "KeyTrap" issue. One of the concerns is that, when there is a zone with many DNSKEY and RRSIG records, the protocol specification implies that an algorithm must evaluate all combinations of DNSKEY and RRSIG records.

Solution(s)

  • alpine-linux-upgrade-bind
  • alpine-linux-upgrade-dnsmasq

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