UBUNTU-CVE-2018-20786

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Source
https://ubuntu.com/security/CVE-2018-20786
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-20786.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2018-20786
Upstream
Downstream
Related
Published
2019-02-24T14:29:00Z
Modified
2025-10-24T04:47:19Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
  • Ubuntu - low
Summary
[none]
Details

libvterm through 0+bzr726, as used in Vim and other products, mishandles certain out-of-memory conditions, leading to a denial of service (application crash), related to screen.c, state.c, and vterm.c.

References

Affected packages

Ubuntu:18.04:LTS

vim

Package

Name
vim
Purl
pkg:deb/ubuntu/vim@2:8.0.1453-1ubuntu1.3?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2:8.0.1453-1ubuntu1.3

Affected versions

2:8.*

2:8.0.0197-4ubuntu5
2:8.0.1144-1ubuntu1
2:8.0.1401-1ubuntu1
2:8.0.1401-1ubuntu2
2:8.0.1401-1ubuntu3
2:8.0.1453-1ubuntu1
2:8.0.1453-1ubuntu1.1

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "vim",
            "binary_version": "2:8.0.1453-1ubuntu1.3"
        },
        {
            "binary_name": "vim-athena",
            "binary_version": "2:8.0.1453-1ubuntu1.3"
        },
        {
            "binary_name": "vim-common",
            "binary_version": "2:8.0.1453-1ubuntu1.3"
        },
        {
            "binary_name": "vim-gnome",
            "binary_version": "2:8.0.1453-1ubuntu1.3"
        },
        {
            "binary_name": "vim-gtk",
            "binary_version": "2:8.0.1453-1ubuntu1.3"
        },
        {
            "binary_name": "vim-gtk3",
            "binary_version": "2:8.0.1453-1ubuntu1.3"
        },
        {
            "binary_name": "vim-gui-common",
            "binary_version": "2:8.0.1453-1ubuntu1.3"
        },
        {
            "binary_name": "vim-nox",
            "binary_version": "2:8.0.1453-1ubuntu1.3"
        },
        {
            "binary_name": "vim-runtime",
            "binary_version": "2:8.0.1453-1ubuntu1.3"
        },
        {
            "binary_name": "vim-tiny",
            "binary_version": "2:8.0.1453-1ubuntu1.3"
        },
        {
            "binary_name": "xxd",
            "binary_version": "2:8.0.1453-1ubuntu1.3"
        }
    ]
}

libvterm

Package

Name
libvterm
Purl
pkg:deb/ubuntu/libvterm@0~bzr715-1?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

Other

0~bzr710-1
0~bzr715-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libvterm-bin",
            "binary_version": "0~bzr715-1"
        },
        {
            "binary_name": "libvterm-dev",
            "binary_version": "0~bzr715-1"
        },
        {
            "binary_name": "libvterm0",
            "binary_version": "0~bzr715-1"
        }
    ]
}

Ubuntu:20.04:LTS

libvterm

Package

Name
libvterm
Purl
pkg:deb/ubuntu/libvterm@0.1.2-2?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

Other

0~bzr718-1

0.*

0.1.2-2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libvterm-bin",
            "binary_version": "0.1.2-2"
        },
        {
            "binary_name": "libvterm-dev",
            "binary_version": "0.1.2-2"
        },
        {
            "binary_name": "libvterm0",
            "binary_version": "0.1.2-2"
        }
    ]
}

Ubuntu:22.04:LTS

libvterm

Package

Name
libvterm
Purl
pkg:deb/ubuntu/libvterm@0.1.4-1?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

0.*

0.1.4-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libvterm-bin",
            "binary_version": "0.1.4-1"
        },
        {
            "binary_name": "libvterm-dev",
            "binary_version": "0.1.4-1"
        },
        {
            "binary_name": "libvterm0",
            "binary_version": "0.1.4-1"
        }
    ]
}

Ubuntu:24.04:LTS

libvterm

Package

Name
libvterm
Purl
pkg:deb/ubuntu/libvterm@0.3.3-2build1?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

0.*

0.1.4-1
0.3.3-2
0.3.3-2build1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libvterm-bin",
            "binary_version": "0.3.3-2build1"
        },
        {
            "binary_name": "libvterm-dev",
            "binary_version": "0.3.3-2build1"
        },
        {
            "binary_name": "libvterm0",
            "binary_version": "0.3.3-2build1"
        }
    ]
}

Ubuntu:25.04

libvterm

Package

Name
libvterm
Purl
pkg:deb/ubuntu/libvterm@0.3.3-3?arch=source&distro=plucky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

0.*

0.3.3-3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libvterm-bin",
            "binary_version": "0.3.3-3"
        },
        {
            "binary_name": "libvterm-dev",
            "binary_version": "0.3.3-3"
        },
        {
            "binary_name": "libvterm0",
            "binary_version": "0.3.3-3"
        }
    ]
}

Ubuntu:25.10

libvterm

Package

Name
libvterm
Purl
pkg:deb/ubuntu/libvterm@0.3.3-3?arch=source&distro=questing

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

0.*

0.3.3-3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libvterm-bin",
            "binary_version": "0.3.3-3"
        },
        {
            "binary_name": "libvterm-dev",
            "binary_version": "0.3.3-3"
        },
        {
            "binary_name": "libvterm0",
            "binary_version": "0.3.3-3"
        }
    ]
}