CVE-2018-1100

HIGH
7.8
CVSS Score
Published: April 11, 2018 at 07:00 PM UTC
Updated: June 17, 2026 at 01:50 AM UTC
5 products affected across 3 vendorsUbuntu LinuxEnterprise Linux DesktopEnterprise Linux Server

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Severity
HIGH7.8
Exploit prediction
EPSS 0.5%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

References (7)

Vendor Advisoryx_refsource_REDHATThird Party Advisory
https://access.redhat.com/errata/RHSA-2018:1932
Vendor Advisoryx_refsource_REDHATThird Party Advisory
https://access.redhat.com/errata/RHSA-2018:3073
x_refsource_CONFIRMIssue TrackingThird Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1563395
Vendor Advisoryx_refsource_GENTOOThird Party Advisory
https://security.gentoo.org/glsa/201805-10
Vendor Advisoryx_refsource_UBUNTUThird Party Advisory
https://usn.ubuntu.com/3764-1/

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-120CWE-787

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