Executive Summary
| Summary | |
|---|---|
| Title | pdns-recursor security update |
| Informations | |||
|---|---|---|---|
| Name | DSA-4691 | First vendor Publication | 2020-05-21 |
| Vendor | Debian | Last vendor Modification | 2020-05-21 |
| Severity (Vendor) | N/A | Revision | 1 |
Security-Database Scoring CVSS v3
| Cvss vector : CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N | |||
|---|---|---|---|
| Overall CVSS Score | 7.5 | ||
| Base Score | 7.5 | Environmental Score | 7.5 |
| impact SubScore | 3.6 | Temporal Score | 7.5 |
| Exploitabality Sub Score | 3.9 | ||
| Attack Vector | Network | Attack Complexity | Low |
| Privileges Required | None | User Interaction | None |
| Scope | Unchanged | Confidentiality Impact | High |
| Integrity Impact | None | Availability Impact | None |
| Calculate full CVSS 3.0 Vectors scores | |||
Security-Database Scoring CVSS v2
| Cvss vector : (AV:N/AC:L/Au:N/C:P/I:N/A:N) | |||
|---|---|---|---|
| Cvss Base Score | 5 | Attack Range | Network |
| Cvss Impact Score | 2.9 | Attack Complexity | Low |
| Cvss Expoit Score | 10 | Authentication | None Required |
| Calculate full CVSS 2.0 Vectors scores | |||
Detail
| Two vulnerabiliites have been discovered in PDNS Recursor, a resolving name server; a traffic amplification attack against third party authoritative name servers (NXNSAttack) and insufficient validation of NXDOMAIN responses lacking an SOA. The version of pdns-recursor in the oldstable distribution (stretch) is no longer supported. If these security issues affect your setup, you should upgrade to the stable distribution (buster). For the stable distribution (buster), these problems have been fixed in version 4.1.11-1+deb10u1. We recommend that you upgrade your pdns-recursor packages. For the detailed security status of pdns-recursor please refer to its security tracker page at: https://security-tracker.debian.org/tracker/pdns-recursor |
Original Source
| Url : http://www.debian.org/security/2020/dsa-4691 |
CWE : Common Weakness Enumeration
| % | Id | Name |
|---|---|---|
| 50 % | CWE-400 | Uncontrolled Resource Consumption ('Resource Exhaustion') |
| 50 % | CWE-347 | Improper Verification of Cryptographic Signature |
CPE : Common Platform Enumeration
Alert History
| Date | Informations |
|---|---|
| 2020-05-23 13:03:43 |
|
| 2020-05-22 00:17:42 |
|
