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CentOS Linux: CVE-2019-20044: Important: zsh security update (Multiple Advisories)

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CentOS Linux: CVE-2019-20044: Important: zsh security update (Multiple Advisories)

Severity
7
CVSS
(AV:L/AC:L/Au:N/C:C/I:C/A:C)
Published
02/24/2020
Created
03/19/2020
Added
03/18/2020
Modified
05/25/2023

Description

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().

Solution(s)

  • centos-upgrade-zsh
  • centos-upgrade-zsh-debuginfo
  • centos-upgrade-zsh-debugsource
  • centos-upgrade-zsh-html

References

  • CVE-2019-20044

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