CVE-2022-30699
Summary
| CVE | CVE-2022-30699 |
|---|---|
| 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 rogue domain name when the cached delegation information is about to expire. The rogue nameserver delays the response so that the cached delegation information is expired. Upon receiving the delayed answer containing the delegation information, Unbound overwrites the now expired entries. This action can be repeated when the delegation information is about to expire making the rogue delegation information ever-updating. From version 1.16.2 on, Unbound stores the start time for a query and uses that to decide if the cached delegation information can be overwritten. |
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)
- 183750 Debian Security Update for unbound (CVE-2022-30699)
- 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)
- 902661 Common Base Linux Mariner (CBL-Mariner) Security Update for unbound (10459)
- 902662 Common Base Linux Mariner (CBL-Mariner) Security Update for unbound (10453)
- 903834 Common Base Linux Mariner (CBL-Mariner) Security Update for unbound (10453-1)
- 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)