CVE-2019-20044

Description (CNA)

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 (CNA)

CWE

No CWE identifiers supplied.

References

• http://zsh.sourceforge.net/releases.html
• https://github.com/XMB5/zsh-privileged-upgrade
• https://www.zsh.org/mla/zsh-announce/141
• https://lists.debian.org/debian-lts-announce/2020/03/msg00004.html
• https://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/202003-55
• https://support.apple.com/kb/HT211170
• https://support.apple.com/kb/HT211175
• https://support.apple.com/kb/HT211171
• https://support.apple.com/kb/HT211168
• http://seclists.org/fulldisclosure/2020/May/49
• http://seclists.org/fulldisclosure/2020/May/55
• http://seclists.org/fulldisclosure/2020/May/53
• http://seclists.org/fulldisclosure/2020/May/59
• https://support.apple.com/HT211168
• https://support.apple.com/HT211170
• https://support.apple.com/HT211171
• https://support.apple.com/HT211175
• https://lists.debian.org/debian-lts-announce/2020/12/msg00000.html

ADP enrichment