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云安全日报210527:Ubuntu配套LZ4解压缩软件发现执行任意代码漏洞,需要尽快升级
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简介谷歌快排【tg:seogoogle987】
Ubuntu是一个以桌面应用为主的Linux操作系统。它是一个开放源代码的自由软件,提供云安了一个健壮、功能丰富的计算环境,既适合家庭使用又适用于商业环境。Ubuntu将为全球数百个公司提供全日商业支持。
LZ4是Ubuntu解压缩软件中配套的一种无损高效的压缩算法。5月26日,Ubuntu发报2布了安全更新,修复了配套LZ4解压缩软件发现的拒绝服务和执行任意代码等重要漏洞。以下是漏洞详情10:
漏洞详情
来源:https://ubuntu.com/security/notices/USN52-4968-1
CVE-2021-3520 严重程度:中
LZ4错误地处理了某些内存操作。如果诱使用户或7:自动化系统解压缩特制的LZ4文件,则远程攻击者可能会利用此问题导致LZ4崩溃,从而导致拒Ub绝服务或可能执行任意代码。
受影响产品和版本
上述漏洞影响Ubuntu 21.04, Ubuntu的2un0.10, Ubuntu 20.04 LTS, Ubuntu 18.04 LTS
解决方案
可以通过将系统tu更新为以下软件包版本来解决此问题:
Ubuntu 21.04:
liblz4-1 - 1.9.3-1ubu配套ntu0.1
Ubuntu的20.10:
liblz4-1 - 1.9.2-2ubuntu0.20.1LZ0.1
Ubuntu的20.04:
liblz4-1 - 1.9.2-2ubuntu0.20.04.4解1
Ubuntu 18.04:
liblz4-1 - 0.0〜r131-2ubuntu3.1
查看更多漏压缩洞信息 以及升级请访问官网:
https://ubuntu.com/security/cve
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