CVE-2018-0502

Critical

Description

An issue was discovered in zsh before 5.6. The beginning of a #! script file was mishandled, potentially leading to an execve call to a program named on the second line.

SeverityCritical

CVSS9.8

Exploit probability—

ProductCanonical Ubuntu Linux

PublishedSep 5, 2018

First seenSep 5, 2018

How to fix

Update

zsh zsh5.6 or later

Vendor advisories

usn.ubuntu.com/3764-1/
security.gentoo.org/glsa/201903-02

Affected products

Product	Affected versions	Fixed in
canonical ubuntu_linux	14.04, 16.04, 18.04	—
zsh zsh	v < 5.6	5.6

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