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CVE-2018-13259

Published: 5 September 2018

An issue was discovered in zsh before 5.6. Shebang lines exceeding 64 characters were truncated, potentially leading to an execve call to a program name that is a substring of the intended one.

Priority

Medium

Cvss 3 Severity Score

9.8

Score breakdown

Status

Package Release Status
zsh
Launchpad, Ubuntu, Debian
upstream
Released (5.6-1)
xenial
Released (5.1.1-1ubuntu2.3)
bionic
Released (5.4.2-3ubuntu3.1)
trusty
Released (5.0.2-3ubuntu6.3)
Patches:
other: https://sourceforge.net/p/zsh/code/ci/1c4c7b6a4d17294df028322b70c53803a402233d

Severity score breakdown

Parameter Value
Base score 9.8
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H