摘要:
openssh security update
安全等级: High
公告ID: KylinSec-SA-2022-2742
发布日期: 2022年11月11日
关联CVE: CVE-2021-28041
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):
ssh-agent in OpenSSH before 8.5 has a double free that may be relevant in a few less-common scenarios, such as unconstrained agent-socket access on a legacy operating system, or the forwarding of an agent to an attacker-controlled host.(CVE-2021-28041)
| cve名称 | 产品 | 组件 | 是否受影响 |
|---|---|---|---|
| CVE-2021-28041 | KY3.4-5A | openssh | Fixed |
| 软件名称 | 架构 | 版本号 |
|---|---|---|
| openssh-help | noarch | 8.2p1-16.kb1.ky3_4 |
| pam_ssh_agent_auth | x86_64 | 0.10.3-9.16.kb1.ky3_4 |
| openssh-cavs | x86_64 | 8.2p1-16.kb1.ky3_4 |
| openssh-keycat | x86_64 | 8.2p1-16.kb1.ky3_4 |
| openssh-askpass | x86_64 | 8.2p1-16.kb1.ky3_4 |
| openssh-server | x86_64 | 8.2p1-16.kb1.ky3_4 |
| openssh-clients | x86_64 | 8.2p1-16.kb1.ky3_4 |
| openssh-ldap | x86_64 | 8.2p1-16.kb1.ky3_4 |
| openssh | x86_64 | 8.2p1-16.kb1.ky3_4 |
| openssh-cavs | aarch64 | 8.2p1-16.kb1.ky3_4 |
| openssh-keycat | aarch64 | 8.2p1-16.kb1.ky3_4 |
| openssh-server | aarch64 | 8.2p1-16.kb1.ky3_4 |
| openssh | aarch64 | 8.2p1-16.kb1.ky3_4 |
| pam_ssh_agent_auth | aarch64 | 0.10.3-9.16.kb1.ky3_4 |
| openssh-clients | aarch64 | 8.2p1-16.kb1.ky3_4 |
| openssh-ldap | aarch64 | 8.2p1-16.kb1.ky3_4 |
| openssh-askpass | aarch64 | 8.2p1-16.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
