Heap-based buffer overflow in Vim - CVE-2022-1886

Vulnerability identifier: #VU64722

CSH Severity: Medium

CVSS v4: 7.1 [CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2022-1886

CWE-ID: CWE-122

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error in register.c. A remote attacker can trick the victim to open a specially crafted file, trigger a heap-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Vim
Amazon Linux AMI
Gentoo Linux
Ubuntu
openEuler
Fedora
vim-tiny (Ubuntu package)
vim-nox (Ubuntu package)
vim-gtk3 (Ubuntu package)
xxd (Ubuntu package)
vim-athena (Ubuntu package)
vim (Ubuntu package)
vim-gtk (Ubuntu package)
vim-filesystem
vim
vim-common
vim-X11
vim-minimal
vim-debugsource
vim-debuginfo
vim-enhanced
app-editors/gvim
app-editors/vim
app-editors/vim-core

Install updates from vendor's website.

Vim - update to 8.2.5016
vim-tiny (Ubuntu package) - addressed in versions Ubuntu Pro (Infra-only), 2:8.1.2269-1ubuntu5.21, 2:8.2.3995-1ubuntu2.15, 2:9.0.1000-4ubuntu3.3, 2:9.0.1672-1ubuntu2.2
vim-nox (Ubuntu package) - addressed in versions Ubuntu Pro (Infra-only), 2:8.1.2269-1ubuntu5.21, 2:8.2.3995-1ubuntu2.15, 2:9.0.1000-4ubuntu3.3, 2:9.0.1672-1ubuntu2.2
vim-gtk3 (Ubuntu package) - addressed in versions Ubuntu Pro (Infra-only), 2:8.1.2269-1ubuntu5.21, 2:8.2.3995-1ubuntu2.15, 2:9.0.1000-4ubuntu3.3, 2:9.0.1672-1ubuntu2.2
xxd (Ubuntu package) - addressed in versions Ubuntu Pro, 2:8.1.2269-1ubuntu5.21, 2:8.2.3995-1ubuntu2.15, 2:9.0.1000-4ubuntu3.3, 2:9.0.1672-1ubuntu2.2
vim-athena (Ubuntu package) - addressed in versions Ubuntu Pro (Infra-only), 2:8.1.2269-1ubuntu5.21, 2:8.2.3995-1ubuntu2.15, 2:9.0.1000-4ubuntu3.3, 2:9.0.1672-1ubuntu2.2
vim (Ubuntu package) - addressed in versions Ubuntu Pro (Infra-only), 2:8.1.2269-1ubuntu5.21, 2:8.2.3995-1ubuntu2.15, 2:9.0.1000-4ubuntu3.3, 2:9.0.1672-1ubuntu2.2
vim-gtk (Ubuntu package) - addressed in versions Ubuntu Pro (Infra-only), 2:8.1.2269-1ubuntu5.21, 2:8.2.3995-1ubuntu2.15
vim-filesystem - update to 8.2-32
vim - update to 8.2-32
vim-common - update to 8.2-32
vim-X11 - update to 8.2-32
vim-minimal - update to 8.2-32
vim-debugsource - update to 8.2-32
vim-debuginfo - update to 8.2-32
vim-enhanced - update to 8.2-32
vim - update to 8.2.5052-1.fc35
vim - addressed in versions 8.2.5172-1.1, 9.0.1160-1.1
app-editors/gvim - addressed in versions 9.0.0060, 9.0.1157
app-editors/vim - addressed in versions 9.0.0060, 9.0.1157
app-editors/vim-core - addressed in versions 9.0.0060, 9.0.1157

• https://huntr.dev/bounties/fa0ad526-b608-45b3-9ebc-f2b607834d6a
• https://github.com/vim/vim/commit/2a585c85013be22f59f184d49612074fd9b115d7
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TYNK6SDCMOLQJOI3B4AOE66P2G2IH4ZM/

• Multiple vulnerabilities in Vim
• Amazon Linux AMI update for vim
• Gentoo update for Vim, gVim
• Gentoo update for Vim, gVim
• Ubuntu update for vim
• openEuler update for vim
• Amazon Linux AMI update for vim
• Fedora 35 update for vim