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7.5High

Isc Bind

CVE-2022-38178

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.

What this means for your business

  • It affects Isc Bind. It matters if your company, or a supplier that handles your data, runs it.
  • An attacker can use it remotely, over a network, without a login, and without anyone at your company clicking anything.
  • FIRST's prediction model gives it a 3% chance of attack attempts being seen in the next 30 days, ranking above 83% of all known flaws.

What to do

  1. 1Check whether your company or your suppliers run Isc Bind, and which version. The affected versions are listed further down this page.
  2. 2If you do, apply the vendor's fix. A patch or vendor advisory has been published.

Not sure if your company is exposed?

Fastnexa’s certified penetration testers can check whether attackers could use this flaw, or others like it, against your websites, apps and network. The full test is free for our first 10 founding clients until 31 December 2026.

Check if you’re exposedBook a call

Scoring

CVSS
7.5 (v3.1)
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness
CWE-401
Assigned by
security-officer@isc.org

Dates

Published
2022-09-21
Last modified
2026-09-01
Sources
NVD

Affected products

  • Isc Bind9.9.12 - 9.9.13, 9.10.7 - 9.10.8, 9.11.3 - 9.16.32, 9.11.3, 9.11.5, 9.11.6, 9.11.7, 9.11.8, 9.11.12, 9.11.14-s1, 9.11.19-s1, 9.11.21, 9.11.27, 9.11.29, 9.11.35, 9.11.37, 9.16.8, 9.16.11, 9.16.13, 9.16.21, 9.16.32
  • Debian Debian Linux11.0
  • Fedoraproject Fedora35, 36, 37
  • Netapp Active Iq Unified Managerall versions

As listed in the NVD configuration data. Not a statement about your estate.

References