CVE-2022-30698
Summary
| CVE | CVE-2022-30698 |
|---|---|
| State | PUBLIC |
| Assigner | [email protected] |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2022-08-01 15:15:00 UTC |
| Updated | 2023-11-07 03:47:00 UTC |
| Description | NLnet Labs Unbound, up to and including version 1.16.1 is vulnerable to a novel type of the "ghost domain names" attack. The vulnerability works by targeting an Unbound instance. Unbound is queried for a subdomain of a rogue domain name. The rogue nameserver returns delegation information for the subdomain that updates Unbound's delegation cache. This action can be repeated before expiry of the delegation information by querying Unbound for a second level subdomain which the rogue nameserver provides new delegation information. Since Unbound is a child-centric resolver, the ever-updating child delegation information can keep a rogue domain name resolvable long after revocation. From version 1.16.2 on, Unbound checks the validity of parent delegation records before using cached delegation information. |
Risk And Classification
Problem Types: CWE-613
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Operating System | Fedoraproject | Fedora | 35 | All | All | All |
| Operating System | Fedoraproject | Fedora | 36 | All | All | All |
| Application | Nlnetlabs | Unbound | All | All | All | All |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| Unbound: Multiple Vulnerabilities (GLSA 202212-02) — Gentoo security | GENTOO | security.gentoo.org | |
| [SECURITY] Fedora 36 Update: unbound-1.16.2-3.fc36 - package-announce - Fedora Mailing-Lists | lists.fedoraproject.org | ||
| www.nlnetlabs.nl/downloads/unbound/CVE-2022-30698_CVE-2022-30699.txt | CONFIRM | www.nlnetlabs.nl | |
| [SECURITY] Fedora 35 Update: unbound-1.16.2-3.fc35 - package-announce - Fedora Mailing-Lists | FEDORA | lists.fedoraproject.org | |
| [SECURITY] Fedora 36 Update: unbound-1.16.2-3.fc36 - package-announce - Fedora Mailing-Lists | FEDORA | lists.fedoraproject.org | |
| [SECURITY] [DLA 3371-1] unbound security update | MLIST | lists.debian.org | |
| [SECURITY] Fedora 35 Update: unbound-1.16.2-3.fc35 - package-announce - Fedora Mailing-Lists | lists.fedoraproject.org | ||
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
Vendor Comments And Credit
Discovery Credit
LEGACY: We would like to thank Xiang Li from the Network and Information Security Lab of Tsinghua University for discovering and disclosing the vulnerability.
Legacy QID Mappings
- 160242 Oracle Enterprise Linux Security Update for unbound (ELSA-2022-7622)
- 160302 Oracle Enterprise Linux Security Update for unbound (ELSA-2022-8062)
- 181641 Debian Security Update for unbound (DLA 3371-1)
- 183505 Debian Security Update for unbound (CVE-2022-30698)
- 198902 Ubuntu Security Notification for Unbound Vulnerabilities (USN-5569-1)
- 240819 Red Hat Update for unbound security (RHSA-2022:7622)
- 240879 Red Hat Update for unbound security (RHSA-2022:8062)
- 283029 Fedora Security Update for unbound (FEDORA-2022-f89beb0640)
- 283065 Fedora Security Update for unbound (FEDORA-2022-0a914d5c6b)
- 354699 Amazon Linux Security Advisory for unbound : ALAS2022-2023-265
- 355270 Amazon Linux Security Advisory for unbound : ALAS2023-2023-078
- 357091 Amazon Linux Security Advisory for unbound : ALAS2-2024-2452
- 357232 Amazon Linux Security Advisory for unbound : ALAS2-2024-2468
- 502797 Alpine Linux Security Update for unbound
- 672189 EulerOS Security Update for unbound (EulerOS-SA-2022-2482)
- 672292 EulerOS Security Update for unbound (EulerOS-SA-2022-2702)
- 672305 EulerOS Security Update for unbound (EulerOS-SA-2022-2670)
- 672378 EulerOS Security Update for unbound (EulerOS-SA-2022-2746)
- 672384 EulerOS Security Update for unbound (EulerOS-SA-2022-2781)
- 690910 Free Berkeley Software Distribution (FreeBSD) Security Update for unbound (bc43a578-14ec-11ed-856e-d4c9ef517024)
- 710690 Gentoo Linux Unbound Multiple Vulnerabilities (GLSA 202212-02)
- 902659 Common Base Linux Mariner (CBL-Mariner) Security Update for unbound (10458)
- 902663 Common Base Linux Mariner (CBL-Mariner) Security Update for unbound (10452)
- 903797 Common Base Linux Mariner (CBL-Mariner) Security Update for unbound (10452-1)
- 940758 AlmaLinux Security Update for unbound (ALSA-2022:7622)
- 940824 AlmaLinux Security Update for unbound (ALSA-2022:8062)
- 960177 Rocky Linux Security Update for unbound (RLSA-2022:7622)
- 960579 Rocky Linux Security Update for unbound (RLSA-2022:8062)