摘要:
ntp security update
安全等级: Medium
公告ID: KylinSec-SA-2022-2098
发布日期: 2022年9月23日
关联CVE: CVE-2020-15025
NTP is a protocol designed to synchronize the clocks of computers over a network, NTP version 4, a significant revision of the previous NTP standard, is the current development version. It is formalized by RFCs released by the IETF.
Security Fix(es):
ntpd in ntp 4.2.8 before 4.2.8p15 and 4.3.x before 4.3.101 allows remote attackers to cause a denial of service (memory consumption) by sending packets, because memory is not freed in situations where a CMAC key is used and associated with a CMAC algorithm in the ntp.keys file.(CVE-2020-15025)
| cve名称 | 产品 | 组件 | 是否受影响 |
|---|---|---|---|
| CVE-2020-15025 | KY3.4-5A | ntp | Fixed |
| 软件名称 | 架构 | 版本号 |
|---|---|---|
| ntp-help | noarch | 4.2.8p14-6.kb1.ky3_4 |
| ntp-perl | noarch | 4.2.8p14-6.kb1.ky3_4 |
| ntp | x86_64 | 4.2.8p14-6.kb1.ky3_4 |
| ntp | aarch64 | 4.2.8p14-6.kb1.ky3_4 |
方法一：下载安装包进行升级安装
1、通过下载链接下载需要升级的升级包保存，如 xxx.rpm
2、通过rpm命令升级，如 rpm -Uvh xxx.rpm
方法二：通过软件源进行升级安装
1、保持能够连接上互联网
2、通过yum命令升级指定的包，如 yum install 包名
