NULL pointer dereference in Vim - CVE-2022-2923

Vulnerability identifier: #VU66785

CSH Severity: Low

CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear

CVE-ID: CVE-2022-2923

CWE-ID: CWE-476

Exploitation vector: Remote access

Exploit availability: No public exploit available

Affected software:
Vim
Amazon Linux AMI
Gentoo Linux
SUSE CaaS Platform
SUSE Manager Server
SUSE Manager Retail Branch Server
SUSE Manager Proxy
SUSE Linux Enterprise Micro
openSUSE Leap Micro
SUSE Enterprise Storage
SUSE Linux Enterprise Storage
SUSE OpenStack Cloud
SUSE OpenStack Cloud Crowbar
Oracle Solaris
SUSE Linux Enterprise Server
SUSE Linux Enterprise Server for SAP
Ubuntu
Slackware Linux
SUSE Linux Enterprise High Performance Computing
SUSE Linux Enterprise Module for Desktop Applications
SUSE Linux Enterprise Desktop
SUSE Linux Enterprise Server for SAP Applications
SUSE Linux Enterprise Module for Basesystem
openSUSE Leap
openEuler
Fedora
Dell EMC PowerProtect Data Protection
Dell Data Protection Central
cflinuxfs3
IBM Sterling Order Management
EMC Cloud Tiering Appliance
VMware Tanzu Application Service for VMs
Isolation Segment
IBM Watson Speech Services Cartridge for IBM Cloud Pak for Data
Dell Secure Connect Gateway
vim-athena (Ubuntu package)
vim-nox (Ubuntu package)
vim (Ubuntu package)
vim-gtk (Ubuntu package)
vim-gnome (Ubuntu package)
vim-tiny (Ubuntu package)
vim-gtk3 (Ubuntu package)
vim-enhanced
vim-debugsource
vim-debuginfo
vim-filesystem
vim-minimal
vim
vim-X11
vim-common
vim-motif (Ubuntu package)
vim-gvim
vim-small
vim-small-debuginfo
vim-data-common
gvim
gvim-debuginfo
vim-data
app-editors/vim-core
app-editors/vim
app-editors/gvim
VMware Tanzu Operations Manager
EMC ViPR SRM
Dell EMC Storage Monitoring and Reporting (SMR)
Dell EMC VxRail Appliance

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dereference error within the sug_filltree() function in spellfile.c. A remote attacker can perform a denial of service (DoS) attack.

Install update from vendor's website.

• https://huntr.dev/bounties/fd3a3ab8-ab0f-452f-afea-8c613e283fd2
• https://github.com/vim/vim/commit/6669de1b235843968e88844ca6d3c8dec4b01a9e