CVE-2018-1100

Publication date 11 April 2018

Last updated 25 August 2025

Ubuntu priority

Low

Why this priority?

Cvss 3 Severity Score

7.8 · High

Score breakdown

Description

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.

Status

Package Ubuntu Release Status
zsh 18.04 LTS bionic
Fixed 5.4.2-3ubuntu3.1
17.10 artful Ignored end of life
16.04 LTS xenial
Fixed 5.1.1-1ubuntu2.3
14.04 LTS trusty
Fixed 5.0.2-3ubuntu6.3

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
zsh

Severity score breakdown

CVSS version: CVSS v3.0

Base score 7.8 · High

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References

Related Ubuntu Security Notices (USN)

    • USN-3764-1
    • Zsh vulnerabilities
    • 11 September 2018

Other references

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