漏洞信息详情
snapd 后置链接漏洞
漏洞简介
Snapd是开源的一个跨平台的包管理工具。
snapd 2.54.2 版本存在后置链接漏洞,该漏洞源于没有正确验证snap- restricted二进制文件的位置。本地攻击者可利用该漏洞,可以将这个二进制文件硬链接到另一个位置,从而导致snap-限制执行其他任意二进制文件,从而获得特权升级。
漏洞公告
目前厂商已发布升级补丁以修复漏洞,补丁获取链接:
https://ubuntu.com/security/notices/USN-5292-1
参考网址
来源:MISC
链接:https://ubuntu.com/security/notices/USN-5292-1
来源:MLIST
链接:http://www.openwall.com/lists/oss-security/2022/02/18/2
来源:DEBIAN
链接:https://www.debian.org/security/2022/dsa-5080
来源:FEDORA
链接:https://lists.fedoraproject.org/archives/list/[email protected]/message/XCGHG6LJAVJJ72TMART6A7N4Z6MSTGI7/
来源:MLIST
链接:http://www.openwall.com/lists/oss-security/2022/02/23/1
来源:FEDORA
链接:https://lists.fedoraproject.org/archives/list/[email protected]/message/3QTBN7LLZISXIA4KU4UKDR27Q5PXDS2U/
来源:packetstormsecurity.com
链接:https://packetstormsecurity.com/files/166056/Ubuntu-Security-Notice-USN-5292-2.html
来源:packetstormsecurity.com
链接:https://packetstormsecurity.com/files/166139/Ubuntu-Security-Notice-USN-5292-4.html
来源:vigilance.fr
链接:https://vigilance.fr/vulnerability/snapd-privilege-escalation-via-Snap-confine-Binary-37598
来源:www.cybersecurity-help.cz
链接:https://www.cybersecurity-help.cz/vdb/SB2022022122
来源:www.auscert.org.au
链接:https://www.auscert.org.au/bulletins/ESB-2022.0719
来源:www.auscert.org.au
链接:https://www.auscert.org.au/bulletins/ESB-2022.0815
来源:cxsecurity.com
链接:https://cxsecurity.com/cveshow/CVE-2021-44730/
受影响实体
暂无
补丁
- snapd 后置链接漏洞的修复措施<!--2022-2-17-->
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