发布时间: 2022年8月12日
修改时间: 2024年10月31日
A flaw was found in the default configuration of dnsmasq, as shipped with Fedora versions prior to 31 and in all versions Red Hat Enterprise Linux, where it listens on any interface and accepts queries from addresses outside of its local subnet. In particular, the option local-service is not enabled. Running dnsmasq in this manner may inadvertently make it an open resolver accessible from any address on the internet. This flaw allows an attacker to conduct a Distributed Denial of Service (DDoS) against other systems.
| NVD | openEuler | |
|---|---|---|
| Confidentiality | None | None |
| Attack Vector | Network | Network |
| CVSS评分 | 5.9 | 5.9 |
| Attack Complexity | High | High |
| Privileges Required | None | None |
| Scope | Unchanged | Unchanged |
| Integrity | None | None |
| User Interaction | None | None |
| Availability | High | High |
| 公告名 | 概要 | 发布时间 |
|---|---|---|
| KylinSec-SA-2022-1640 | A flaw was found in the default configuration of dnsmasq, as shipped with Fedora versions prior to 31 and in all versions Red Hat Enterprise Linux, where it listens on any interface and accepts queries from addresses outside of its local subnet. In particular, the option local-service is not enabled. Running dnsmasq in this manner may inadvertently make it an open resolver accessible from any address on the internet. This flaw allows an attacker to conduct a Distributed Denial of Service (DDoS) against other systems. | 2022年8月12日 |
| KylinSec-SA-2022-1946 | dnsmasq security update | 2022年8月12日 |
| 产品 | 包 | 状态 |
|---|---|---|
| KY3.4-4A | dnsmasq | Fixed |
| KY3.4-5A | dnsmasq | Fixed |
