CVE-2018-7548 Information

Description

In subst.c in zsh through 5.4.2 there is a NULL pointer dereference when using $(PA)… on an empty array result.

CVSS Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Reference

https://security.gentoo.org/glsa/201805-10 https://sourceforge.net/p/zsh/code/ci/110b13e1090bc31ac1352b28adc2d02b6d25a102 https://usn.ubuntu.com/3593-1/

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

9.8