CVE-2022-2795
Processing large delegations may severely degrade resolver performance
MEDIUM 5.3
At a glance
- Source
- NVD
- EPSS
- EPSS 2.29 % · percentile 83 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- isc
- NVD status
- Modified
Description
By flooding the target resolver with queries exploiting this flaw an attacker can significantly impair the resolver's performance, effectively denying legitimate clients access to the DNS resolution service.
References
- https://kb.isc.org/docs/cve-2022-2795
- http://www.openwall.com/lists/oss-security/2022/09/21/3
- https://www.debian.org/security/2022/dsa-5235
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CV4GQWBPF7Y52J2FA24U6UMHQAOXZEF7/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MRHB6J4Z7BKH4HPEKG5D35QGRD6ANNMT/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YZJQNUASODNVAWZV6STKG5SD6XIJ446S/
- https://lists.debian.org/debian-lts-announce/2022/10/msg00007.html
- https://security.gentoo.org/glsa/202210-25
- https://security.netapp.com/advisory/ntap-20241129-0002/
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | MEDIUM 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L | isc |
| CVSS 3.1 | MEDIUM 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L | NVD · security-officer@isc.org (Secondary) |
| CVSS 3.1 | MEDIUM 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2022-35036
- GCVE · GCVE-0-2022-2795
CERT-FR advisories
- CERTFR-2026-AVI-0326 — Multiples vulnérabilités dans les produits VMware · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0316 — Multiples vulnérabilités dans les produits VMware · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0756 — Multiples vulnérabilités dans les produits VMware · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0297 — Multiples vulnérabilités dans Juniper · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0027 — Multiples vulnérabilités dans les produits Juniper Networks · cert.ssi.gouv.fr
- CERTFR-2023-AVI-0537 — Multiples vulnérabilités dans les produits Juniper · cert.ssi.gouv.fr
- CERTFR-2023-AVI-0276 — Multiples vulnérabilités dans les produits IBM · cert.ssi.gouv.fr
- CERTFR-2022-AVI-848 — Multiples vulnérabilités dans Bind · cert.ssi.gouv.fr
- CERTFR-2022-AVI-1059 — Multiples vulnérabilités dans les produits IBM · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:a:isc:bind:*:*:*:*:-:*:*:*≥ 9.0.0 < 9.16.33cpe:2.3:a:isc:bind:*:*:*:*:-:*:*:*≥ 9.18.0 < 9.18.7cpe:2.3:a:isc:bind:*:*:*:*:-:*:*:*≥ 9.19.0 < 9.19.5cpe:2.3:a:isc:bind:9.9.3:s1:*:*:*:*:*:*cpe:2.3:a:isc:bind:9.9.3:s1:*:*:supported_preview:*:*:*cpe:2.3:a:isc:bind:9.9.12:s1:*:*:supported_preview:*:*:*cpe:2.3:a:isc:bind:9.9.13:s1:*:*:supported_preview:*:*:*cpe:2.3:a:isc:bind:9.10.5:s1:*:*:supported_preview:*:*:*cpe:2.3:a:isc:bind:9.10.7:s1:*:*:supported_preview:*:*:*cpe:2.3:a:isc:bind:9.11.3:s1:*:*:supported_preview:*:*:*cpe:2.3:a:isc:bind:9.11.5:s3:*:*:*:*:*:*cpe:2.3:a:isc:bind:9.11.5:s3:*:*:supported_preview:*:*:*cpe:2.3:a:isc:bind:9.11.5:s5:*:*:supported_preview:*:*:*cpe:2.3:a:isc:bind:9.11.5:s6:*:*:supported_preview:*:*:*cpe:2.3:a:isc:bind:9.11.6:s1:*:*:supported_preview:*:*:*cpe:2.3:a:isc:bind:9.11.7:s1:*:*:supported_preview:*:*:*cpe:2.3:a:isc:bind:9.11.8:s1:*:*:supported_preview:*:*:*cpe:2.3:a:isc:bind:9.11.12:s1:*:*:supported_preview:*:*:*cpe:2.3:a:isc:bind:9.11.14-s1:*:*:*:preview:*:*:*cpe:2.3:a:isc:bind:9.11.19-s1:*:*:*:preview:*:*:*cpe:2.3:a:isc:bind:9.11.21:s1:*:*:supported_preview:*:*:*cpe:2.3:a:isc:bind:9.11.27:s1:*:*:supported_preview:*:*:*cpe:2.3:a:isc:bind:9.11.29:s1:*:*:supported_preview:*:*:*cpe:2.3:a:isc:bind:9.11.35:s1:*:*:supported_preview:*:*:*cpe:2.3:a:isc:bind:9.11.37:s1:*:*:supported_preview:*:*:*cpe:2.3:a:isc:bind:9.16.8:s1:*:*:supported_preview:*:*:*cpe:2.3:a:isc:bind:9.16.11:s1:*:*:supported_preview:*:*:*cpe:2.3:a:isc:bind:9.16.13:s1:*:*:supported_preview:*:*:*cpe:2.3:a:isc:bind:9.16.21:s1:*:*:supported_preview:*:*:*cpe:2.3:a:isc:bind:9.16.32:s1:*:*:supported_preview:*:*:*cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:*cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*
Affected products
| Product | Versions |
|---|---|
| ISC · BIND9 | affected Open Source Branches 9.0 through 9.16 9.0.0 through versions before 9.16.33 ; affected Open Source Branch 9.18 9.18.0 through versions before 9.18.7 ; affected Supported Preview Branches 9.9-S through 9.11-S 9.9.3-S1 through versions up to and including 9.11.37-S1 ; affected Supported Preview Branch 9.16-S 9.16.8-S1 through versions before 9.16.33-S1 ; affected Development Branch 9.19 9.19.0 through versions before 9.19.5 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |