Script Execution Flaw in Z Shell Affects Multiple Versions
CVE-2018-0502

9.8CRITICAL

Key Information:

Vendor

Canonical

Status
Zsh Before 5.6
Vendor
CVE Published:
5 September 2018

What is CVE-2018-0502?

A vulnerability exists in Z Shell that mishandles the beginning of a #! script file. This flaw may lead to an unintended execve call to a program specified on the second line of such a script, which could allow unauthorized commands to be executed.

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Deploy the Patch

Affected Version(s)

zsh before 5.6 zsh before 5.6

References

https://bugs.debian.org/908000
x_refsource_MISC
https://sourceforge.net/p/zsh/code/ci/1c4c7b6a4d17294df02...
x_refsource_MISC
https://www.zsh.org/mla/zsh-announce/136
x_refsource_MISC

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
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