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zsh: buffer overflow for very long fds in >& fd syntax

🗓️ 30 Oct 2018 09:54:46Reported by RedHatType 
redhat
 redhat
🔗 access.redhat.com👁 4 Views

Zsh buffer overflow in very long file descriptor redirection can crash the shell and cause denial of service.

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Packages
Refs
OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux7aarch64zsh0:5.0.2-31.el7zsh-0:5.0.2-31.el7.aarch64.rpm
Red Hat Enterprise Linux7ppc64zsh0:5.0.2-31.el7zsh-0:5.0.2-31.el7.ppc64.rpm
Red Hat Enterprise Linux7ppc64lezsh0:5.0.2-31.el7zsh-0:5.0.2-31.el7.ppc64le.rpm
Red Hat Enterprise Linux7s390xzsh0:5.0.2-31.el7zsh-0:5.0.2-31.el7.s390x.rpm
Red Hat Enterprise Linux7x86_64zsh0:5.0.2-31.el7zsh-0:5.0.2-31.el7.x86_64.rpm
Red Hat Enterprise Linux7aarch64zsh-debuginfo0:5.0.2-31.el7zsh-debuginfo-0:5.0.2-31.el7.aarch64.rpm
Red Hat Enterprise Linux7ppc64zsh-debuginfo0:5.0.2-31.el7zsh-debuginfo-0:5.0.2-31.el7.ppc64.rpm
Red Hat Enterprise Linux7ppc64lezsh-debuginfo0:5.0.2-31.el7zsh-debuginfo-0:5.0.2-31.el7.ppc64le.rpm
Red Hat Enterprise Linux7s390xzsh-debuginfo0:5.0.2-31.el7zsh-debuginfo-0:5.0.2-31.el7.s390x.rpm
Red Hat Enterprise Linux7x86_64zsh-debuginfo0:5.0.2-31.el7zsh-debuginfo-0:5.0.2-31.el7.x86_64.rpm
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13 Jan 2026 22:36Current
6Medium risk
Vulners AI Score6
CVSS 27.5
CVSS 39.8
EPSS0.02787
4