Allocation of Resources Without Limits or Throttling Affecting github.com/lxc/incus/v6/internal/server/firewall/drivers package, versions >=6.12.0


Severity

Recommended
0.0
medium
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

Exploit Maturity
Proof of Concept
EPSS
0.03% (6th percentile)

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  • Snyk IDSNYK-GOLANG-GITHUBCOMLXCINCUSV6INTERNALSERVERFIREWALLDRIVERS-10558296
  • published27 Jun 2025
  • disclosed26 Jun 2025
  • creditOlivier BAL-PETRE

Introduced: 26 Jun 2025

NewCVE-2025-52889  (opens in a new tab)
CWE-770  (opens in a new tab)

How to fix?

A fix was pushed into the master branch but not yet published.

Overview

Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling due to the improper enforcement of resource limits in the nftables rules generation process for managed bridge networks. An attacker can exhaust the DHCP pool and disrupt network connectivity for other devices by sending numerous DHCP requests with different MAC addresses, thereby consuming all available IP leases. This also allows sending DNS requests with arbitrary MAC and IP addresses, potentially bypassing intended access controls.

References

CVSS Base Scores

version 4.0
version 3.1