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云安全日报210831:红帽RHEL系统内核发现特权提升漏洞,需要尽快升级
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简介...
Red Hat Enterprise Linux(RHEL)是Red Hat公司面向商业云安市场的Linux发行版。8月31日,Red Hat发布了安全更新,修复了红帽RHE全日L内核中发现特权提升等重要漏洞。以下是漏洞详情:
漏洞详情
来源:https://ac报2cess.redhat.com/errata/RHSA-2021:3327
CVE-210021-22555 CVSS评分:7.8 严重程度:高
在 64 位系统上为 32 位进程处理 s83etsockopt IPT_SO_SET_REPLACE(或 IP6T_SO_SET_REP1:LACE)时发现了一个漏洞。此漏洞将允许本地用户通过用户名空间获取权限或引发 DoS。此操红帽作通常仅限于具有 root 权限的用户,但如果内核使用 CONFIG_USER_NS 和 CONFIRHG_NET_NS 编译并且用户被授予提升的权限,则也可以利用此操作。
受影响产品和版本
RELed Hat Enterprise Linux Workstation 7 x86_64
解决方系统案
官方已发布Red Hat Enterprise Linux Workstation 7 扩展更新支内核持的内核更新,建议用户及时更新
查看更多漏洞信息 以及升级请访问官网:
https://a发现ccess.redhat.com/security/security-updates/#特权/security-advisories
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