发布时间: 2024年8月23日
修改时间: 2025年4月13日
c-ares is a C library for asynchronous DNS requests. `ares__read_line()` is used to parse local configuration files such as `/etc/resolv.conf`, `/etc/nsswitch.conf`, the `HOSTALIASES` file, and if using a c-ares version prior to 1.27.0, the `/etc/hosts` file. If any of these configuration files has an embedded `NULL` character as the first character in a new line, it can lead to attempting to read memory prior to the start of the given buffer which may result in a crash. This issue is fixed in c-ares 1.27.0. No known workarounds exist.
| NVD | openEuler | |
|---|---|---|
| Confidentiality | None | None |
| Attack Vector | Local | Local |
| CVSS评分 | 5.5 | 4.4 |
| Attack Complexity | Low | Low |
| Privileges Required | Low | High |
| Scope | Unchanged | Unchanged |
| Integrity | None | None |
| User Interaction | None | None |
| Availability | High | High |
| 公告名 | 概要 | 发布时间 |
|---|---|---|
| KylinSec-SA-2024-3567 | c-ares security update | 2024年8月23日 |
| KylinSec-SA-2024-3686 | c-ares security update | 2024年8月23日 |
| 产品 | 包 | 状态 |
|---|---|---|
| KY3.4-5A | c-ares | Fixed |
| KY3.5.2 | c-ares | Fixed |
| KY3.5.2 | c-ares | Unaffected |
| V6 | c-ares | Unaffected |
