CVE-2022-2795
Processing large delegations may severely degrade resolver performance
Severity Score
5.3
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
Attend
*SSVC
Descriptions
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.
Al inundar el resolvedor de destino con consultas que explotan este fallo, un atacante puede perjudicar significativamente el rendimiento del resolvedor, negando efectivamente a los clientes legítimos el acceso al servicio de resolución DNS
A flaw was found in bind. When flooding the target resolver with special queries, an attacker can significantly impair the resolver's performance, effectively denying legitimate clients access to the DNS resolution service.
*Credits:
ISC would like to thank Yehuda Afek from Tel-Aviv University and Anat Bremler-Barr & Shani Stajnrod from Reichman University for bringing this vulnerability to our attention.
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:Attend
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2022-08-12 CVE Reserved
- 2022-09-21 CVE Published
- 2024-04-13 EPSS Updated
- 2024-09-17 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-400: Uncontrolled Resource Consumption
CAPEC
References (10)
URL | Tag | Source |
---|---|---|
https://lists.debian.org/debian-lts-announce/2022/10/msg00007.html | Mailing List |
URL | Date | SRC |
---|
URL | Date | SRC |
---|---|---|
http://www.openwall.com/lists/oss-security/2022/09/21/3 | 2023-11-07 | |
https://kb.isc.org/docs/cve-2022-2795 | 2023-11-07 |
Affected Vendors, Products, and Versions
Vendor | Product | Version | Other | Status | ||||||
---|---|---|---|---|---|---|---|---|---|---|
Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
Isc Search vendor "Isc" | Bind Search vendor "Isc" for product "Bind" | >= 9.0.0 < 9.16.33 Search vendor "Isc" for product "Bind" and version " >= 9.0.0 < 9.16.33" | - |
Affected
| ||||||
Isc Search vendor "Isc" | Bind Search vendor "Isc" for product "Bind" | >= 9.18.0 < 9.18.7 Search vendor "Isc" for product "Bind" and version " >= 9.18.0 < 9.18.7" | - |
Affected
| ||||||
Isc Search vendor "Isc" | Bind Search vendor "Isc" for product "Bind" | >= 9.19.0 < 9.19.5 Search vendor "Isc" for product "Bind" and version " >= 9.19.0 < 9.19.5" | - |
Affected
| ||||||
Isc Search vendor "Isc" | Bind Search vendor "Isc" for product "Bind" | 9.9.3 Search vendor "Isc" for product "Bind" and version "9.9.3" | s1, supported_preview |
Affected
| ||||||
Isc Search vendor "Isc" | Bind Search vendor "Isc" for product "Bind" | 9.9.3 Search vendor "Isc" for product "Bind" and version "9.9.3" | s1, supported_preview |
Affected
| ||||||
Isc Search vendor "Isc" | Bind Search vendor "Isc" for product "Bind" | 9.9.12 Search vendor "Isc" for product "Bind" and version "9.9.12" | s1, supported_preview |
Affected
| ||||||
Isc Search vendor "Isc" | Bind Search vendor "Isc" for product "Bind" | 9.9.13 Search vendor "Isc" for product "Bind" and version "9.9.13" | s1, supported_preview |
Affected
| ||||||
Isc Search vendor "Isc" | Bind Search vendor "Isc" for product "Bind" | 9.10.5 Search vendor "Isc" for product "Bind" and version "9.10.5" | s1, supported_preview |
Affected
| ||||||
Isc Search vendor "Isc" | Bind Search vendor "Isc" for product "Bind" | 9.10.7 Search vendor "Isc" for product "Bind" and version "9.10.7" | s1, supported_preview |
Affected
| ||||||
Isc Search vendor "Isc" | Bind Search vendor "Isc" for product "Bind" | 9.11.3 Search vendor "Isc" for product "Bind" and version "9.11.3" | s1, supported_preview |
Affected
| ||||||
Isc Search vendor "Isc" | Bind Search vendor "Isc" for product "Bind" | 9.11.5 Search vendor "Isc" for product "Bind" and version "9.11.5" | s3, supported_preview |
Affected
| ||||||
Isc Search vendor "Isc" | Bind Search vendor "Isc" for product "Bind" | 9.11.5 Search vendor "Isc" for product "Bind" and version "9.11.5" | s3, supported_preview |
Affected
| ||||||
Isc Search vendor "Isc" | Bind Search vendor "Isc" for product "Bind" | 9.11.5 Search vendor "Isc" for product "Bind" and version "9.11.5" | s5, supported_preview |
Affected
| ||||||
Isc Search vendor "Isc" | Bind Search vendor "Isc" for product "Bind" | 9.11.5 Search vendor "Isc" for product "Bind" and version "9.11.5" | s6, supported_preview |
Affected
| ||||||
Isc Search vendor "Isc" | Bind Search vendor "Isc" for product "Bind" | 9.11.6 Search vendor "Isc" for product "Bind" and version "9.11.6" | s1, supported_preview |
Affected
| ||||||
Isc Search vendor "Isc" | Bind Search vendor "Isc" for product "Bind" | 9.11.7 Search vendor "Isc" for product "Bind" and version "9.11.7" | s1, supported_preview |
Affected
| ||||||
Isc Search vendor "Isc" | Bind Search vendor "Isc" for product "Bind" | 9.11.8 Search vendor "Isc" for product "Bind" and version "9.11.8" | s1, supported_preview |
Affected
| ||||||
Isc Search vendor "Isc" | Bind Search vendor "Isc" for product "Bind" | 9.11.12 Search vendor "Isc" for product "Bind" and version "9.11.12" | s1, supported_preview |
Affected
| ||||||
Isc Search vendor "Isc" | Bind Search vendor "Isc" for product "Bind" | 9.11.14-s1 Search vendor "Isc" for product "Bind" and version "9.11.14-s1" | preview |
Affected
| ||||||
Isc Search vendor "Isc" | Bind Search vendor "Isc" for product "Bind" | 9.11.19-s1 Search vendor "Isc" for product "Bind" and version "9.11.19-s1" | preview |
Affected
| ||||||
Isc Search vendor "Isc" | Bind Search vendor "Isc" for product "Bind" | 9.11.21 Search vendor "Isc" for product "Bind" and version "9.11.21" | s1, supported_preview |
Affected
| ||||||
Isc Search vendor "Isc" | Bind Search vendor "Isc" for product "Bind" | 9.11.27 Search vendor "Isc" for product "Bind" and version "9.11.27" | s1, supported_preview |
Affected
| ||||||
Isc Search vendor "Isc" | Bind Search vendor "Isc" for product "Bind" | 9.11.29 Search vendor "Isc" for product "Bind" and version "9.11.29" | s1, supported_preview |
Affected
| ||||||
Isc Search vendor "Isc" | Bind Search vendor "Isc" for product "Bind" | 9.11.35 Search vendor "Isc" for product "Bind" and version "9.11.35" | s1, supported_preview |
Affected
| ||||||
Isc Search vendor "Isc" | Bind Search vendor "Isc" for product "Bind" | 9.11.37 Search vendor "Isc" for product "Bind" and version "9.11.37" | s1, supported_preview |
Affected
| ||||||
Isc Search vendor "Isc" | Bind Search vendor "Isc" for product "Bind" | 9.16.8 Search vendor "Isc" for product "Bind" and version "9.16.8" | s1, supported_preview |
Affected
| ||||||
Isc Search vendor "Isc" | Bind Search vendor "Isc" for product "Bind" | 9.16.11 Search vendor "Isc" for product "Bind" and version "9.16.11" | s1, supported_preview |
Affected
| ||||||
Isc Search vendor "Isc" | Bind Search vendor "Isc" for product "Bind" | 9.16.13 Search vendor "Isc" for product "Bind" and version "9.16.13" | s1, supported_preview |
Affected
| ||||||
Isc Search vendor "Isc" | Bind Search vendor "Isc" for product "Bind" | 9.16.21 Search vendor "Isc" for product "Bind" and version "9.16.21" | s1, supported_preview |
Affected
| ||||||
Isc Search vendor "Isc" | Bind Search vendor "Isc" for product "Bind" | 9.16.32 Search vendor "Isc" for product "Bind" and version "9.16.32" | s1, supported_preview |
Affected
| ||||||
Debian Search vendor "Debian" | Debian Linux Search vendor "Debian" for product "Debian Linux" | 10.0 Search vendor "Debian" for product "Debian Linux" and version "10.0" | - |
Affected
| ||||||
Debian Search vendor "Debian" | Debian Linux Search vendor "Debian" for product "Debian Linux" | 11.0 Search vendor "Debian" for product "Debian Linux" and version "11.0" | - |
Affected
| ||||||
Fedoraproject Search vendor "Fedoraproject" | Fedora Search vendor "Fedoraproject" for product "Fedora" | 35 Search vendor "Fedoraproject" for product "Fedora" and version "35" | - |
Affected
| ||||||
Fedoraproject Search vendor "Fedoraproject" | Fedora Search vendor "Fedoraproject" for product "Fedora" | 36 Search vendor "Fedoraproject" for product "Fedora" and version "36" | - |
Affected
| ||||||
Fedoraproject Search vendor "Fedoraproject" | Fedora Search vendor "Fedoraproject" for product "Fedora" | 37 Search vendor "Fedoraproject" for product "Fedora" and version "37" | - |
Affected
|