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zsh through version 5.4.2 is vulnerable to a stack-based buffer overflow in the utils.c:checkmailpath function. A local attacker could exploit this to execute arbitrary code in the context of another user.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon Linux Ami 2 | — | Upgrade zsh-htmlUpgrade zshUpgrade zsh-debuginfo | Apr 27, 2020 | Apr 11, 2018 |
| Amazon_linux | — | Upgrade zsh | Dec 7, 2018 | Apr 11, 2018 |
| Arch Linux | — | Upgrade to the latest version of Arch Linux | Jul 11, 2025 | Apr 11, 2018 |
| Centos_linux | — | Upgrade zsh-htmlUpgrade zsh-debuginfoUpgrade zsh | Aug 28, 2019 | Apr 11, 2018 |
| Debian | — | Upgrade zsh | Dec 1, 2020 | Apr 11, 2018 |
| Gentoo Linux | — | Upgrade app-shells/zsh. | May 29, 2018 | Apr 11, 2018 |
| Huawei Euleros 2_0_sp2 | — | Upgrade zsh | Dec 31, 2018 | Apr 11, 2018 |
| Huawei Euleros 2_0_sp3 | — | Upgrade zsh | Dec 11, 2018 | Apr 11, 2018 |
| Huawei Euleros 2_0_sp5 | — | Upgrade zsh | Nov 19, 2019 | Apr 11, 2018 |
| Oracle Solaris | — | Upgrade shell/zsh to version 5.6.2-11.4.4.0.1.3.0 on Solaris 11.4 | Dec 17, 2018 | Apr 11, 2018 |
| Oracle_linux | — | Upgrade zshUpgrade zsh-html | Jun 26, 2018 | Apr 7, 2018 |
| Redhat_linux | — | Upgrade zsh-htmlNo solution existsUpgrade zshUpgrade zsh-debuginfo | Jun 20, 2018 | Apr 11, 2018 |
| Suse | — | Upgrade zshUpgrade zsh-htmldoc | Apr 21, 2018 | Apr 11, 2018 |
| Ubuntu | — | Upgrade zsh | Sep 20, 2018 | Apr 11, 2018 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Jan 20, 2025 | Apr 11, 2018 |
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