CVE-2019-20044
CVE-2019-20044
In Zsh before 5.8, attackers able to execute commands can regain privileges dropped by the --no-PRIVILEGED option. Zsh fails to overwrite the saved uid, so the original privileges can be restored by executing MODULE_PATH=/dir/with/module zmodload with a module that calls setuid().
Affected products
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Talk to TrueHacking →References
http://seclists.org/fulldisclosure/2020/May/49http://seclists.org/fulldisclosure/2020/May/53http://seclists.org/fulldisclosure/2020/May/55http://seclists.org/fulldisclosure/2020/May/59https://github.com/XMB5/zsh-privileged-upgradehttps://lists.debian.org/debian-lts-announce/2020/03/msg00004.htmlhttps://lists.debian.org/debian-lts-announce/2020/12/msg00000.htmlhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FP64FFIZI2CKQOEAOI5A72PVQULE7ZZC/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PN5V7MPHRRP7QNHOEK56S7QGRU53WUN6/https://security.gentoo.org/glsa/202003-55https://support.apple.com/HT211168https://support.apple.com/HT211170