Allocation of Resources Without Limits or Throttling Affecting dnsmasq package, versions [,2.90)
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learning- Snyk IDSNYK-UNMANAGED-DNSMASQ-6245756
- published14 Feb 2024
- disclosed5 Feb 2024
- creditElias Heftrig, Haya Schulmann, Niklas Vogel, Michael Waidner
Introduced: 5 Feb 2024
CVE-2023-50387 (opens in a new tab)How to fix?
Upgrade dnsmasq to version 2.90 or higher.
Overview
Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling when DNSSEC validation is enabled, due to a flaw in the DNSSEC specification. An attacker can send traffic from a malicious signed domain that occupies excessive CPU on the target system (keytrap).