摘要:
openssh security update
安全等级: High
公告ID: KylinSec-SA-2024-2958
发布日期: 2024年7月2日
关联CVE: CVE-2024-6387
OpenSSH is the premier connectivity tool for remote login with the SSH protocol. \ It encrypts all traffic to eliminate eavesdropping, connection hijacking, and \ other attacks. In addition, OpenSSH provides a large suite of secure tunneling \ capabilities, several authentication methods, and sophisticated configuration options.
Security Fix(es):
A signal handler race condition was found in OpenSSH's server (sshd), where a client does not authenticate within LoginGraceTime seconds (120 by default, 600 in old OpenSSH versions), then sshd's SIGALRM handler is called asynchronously. However, this signal handler calls various functions that are not async-signal-safe, for example, syslog().(CVE-2024-6387)
| cve名称 | 产品 | 组件 | 是否受影响 |
|---|---|---|---|
| CVE-2024-6387 | KY3.5.2 | openssh | Fixed |
| 软件名称 | 架构 | 版本号 |
|---|---|---|
| openssh-help | noarch | 8.8p1-31.ky3_5 |
| openssh | x86_64 | 8.8p1-31.ky3_5 |
| openssh-askpass | x86_64 | 8.8p1-31.ky3_5 |
| openssh-clients | x86_64 | 8.8p1-31.ky3_5 |
| openssh-keycat | x86_64 | 8.8p1-31.ky3_5 |
| openssh-server | x86_64 | 8.8p1-31.ky3_5 |
| pam_ssh_agent_auth | x86_64 | 0.10.4-4.31.ky3_5 |
| openssh | aarch64 | 8.8p1-31.ky3_5 |
| openssh-askpass | aarch64 | 8.8p1-31.ky3_5 |
| openssh-clients | aarch64 | 8.8p1-31.ky3_5 |
| openssh-keycat | aarch64 | 8.8p1-31.ky3_5 |
| openssh-server | aarch64 | 8.8p1-31.ky3_5 |
| pam_ssh_agent_auth | aarch64 | 0.10.4-4.31.ky3_5 |
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
