Integer overflow - CVE-2017-5953

Vulnerability identifier: #VU33443

CSH Severity: High

CVSS v4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2017-5953

CWE-ID: CWE-190

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.

vim before patch 8.0.0322 does not properly validate values for tree length when handling a spell file, which may result in an integer overflow at a memory allocation site and a resultant buffer overflow.

Arch Linux
Amazon Linux AMI
Gentoo Linux
SUSE OpenStack Cloud
SUSE OpenStack Cloud Crowbar
SUSE Linux Enterprise Server
SUSE Linux Enterprise Server for SAP
Fedora
neovim (Alpine package)
vim
vim-data
vim-data-common
gvim
gvim-debuginfo
vim-debuginfo
vim-debugsource

Install update from vendor's website.

vim - addressed in versions 8.0.324-1.fc24, 8.0.324-1.fc25
vim-data - update to 9.0.0814-17.9.1
vim-data-common - update to 9.0.0814-17.9.1
gvim - update to 9.0.0814-17.9.1
gvim-debuginfo - update to 9.0.0814-17.9.1
vim - update to 9.0.0814-17.9.1
vim-debuginfo - update to 9.0.0814-17.9.1
vim-debugsource - update to 9.0.0814-17.9.1

• http://www.debian.org/security/2017/dsa-3786
• http://www.securityfocus.com/bid/96217
• https://github.com/vim/vim/commit/399c297aa93afe2c0a39e2a1b3f972aebba44c9d
• https://groups.google.com/forum/#!topic/vim_dev/t-3RSdEnrHY
• https://security.gentoo.org/glsa/201706-26
• https://usn.ubuntu.com/4016-1/
• https://usn.ubuntu.com/4309-1/

• Integer overflow in neovim (Alpine package)
• Arch Linux update for vim
• Arch Linux update for gvim
• Amazon Linux AMI update for vim
• Gentoo update for Vim, gVim
• SUSE update for vim
• Fedora 24 update for vim
• Fedora 25 update for vim