CVE-2018-7549
HIGHzsh < 5.4.2 - Denial of Service via Empty Hash Table Copy
Title source: llmDescription
In params.c in zsh through 5.4.2, there is a crash during a copy of an empty hash table, as demonstrated by typeset -p.
References (4)
Core 4
Core References
Third Party Advisory vendor-advisory
x_refsource_ubuntu
https://usn.ubuntu.com/3593-1/
Third Party Advisory vendor-advisory
x_refsource_gentoo
https://security.gentoo.org/glsa/201805-10
Patch, Third Party Advisory x_refsource_misc
https://sourceforge.net/p/zsh/code/ci/c2cc8b0fbefc9868fa83537f5b6d90fc1ec438dd
Third Party Advisory vendor-advisory
x_refsource_redhat
https://access.redhat.com/errata/RHSA-2018:3073
Scores
CVSS v3
7.5
EPSS
0.0268
EPSS Percentile
84.0%
Attack Vector
NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Details
CWE
CWE-20
Status
published
Products (7)
canonical/ubuntu_linux
14.04
canonical/ubuntu_linux
16.04
canonical/ubuntu_linux
17.10
redhat/enterprise_linux_desktop
7.0
redhat/enterprise_linux_server
7.0
redhat/enterprise_linux_workstation
7.0
zsh/zsh
< 5.4.2
Published
Feb 27, 2018
Tracked Since
Feb 18, 2026