UBUNTU-CVE-2018-19838

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Source
https://ubuntu.com/security/CVE-2018-19838
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-19838.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2018-19838
Related
Published
2018-12-04T09:29:00Z
Modified
2025-04-23T15:15:07Z
Severity
  • 6.5 (Medium) CVSS_V3 - CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

In LibSass prior to 3.5.5, functions inside ast.cpp for IMPLEMENTASTOPERATORS expansion allow attackers to cause a denial-of-service resulting from stack consumption via a crafted sass file, as demonstrated by recursive calls involving clone(), cloneChildren(), and copy().

References

Affected packages

Ubuntu:Pro:16.04:LTS / libsass

Package

Name
libsass
Purl
pkg:deb/ubuntu/libsass@3.3.4-1?arch=source&distro=esm-apps/xenial

Affected ranges

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

Affected versions

3.*

3.2.5-1
3.2.5-2
3.3.2-1
3.3.4-1

Ecosystem specific 

{
    "ubuntu_priority": "medium"
}

Ubuntu:Pro:18.04:LTS / libsass

Package

Name
libsass
Purl
pkg:deb/ubuntu/libsass@3.4.8-1ubuntu0.1~esm1?arch=source&distro=esm-apps/bionic

Affected ranges

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

Affected versions

3.*

3.4.3-1
3.4.6-1
3.4.8-1
3.4.8-1ubuntu0.1~esm1

Ecosystem specific 

{
    "ubuntu_priority": "medium"
}

Ubuntu:20.04:LTS / libsass

Package

Name
libsass
Purl
pkg:deb/ubuntu/libsass@3.6.3-1ubuntu1?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.6.3-1ubuntu1

Affected versions

3.*

3.5.5-4

Ecosystem specific 

{
    "availability": "No subscription required",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "binary_version": "3.6.3-1ubuntu1",
            "binary_name": "libsass-dev"
        },
        {
            "binary_version": "3.6.3-1ubuntu1",
            "binary_name": "libsass1"
        },
        {
            "binary_version": "3.6.3-1ubuntu1",
            "binary_name": "libsass1-dbgsym"
        }
    ]
}

Ubuntu:22.04:LTS / libsass

Package

Name
libsass
Purl
pkg:deb/ubuntu/libsass@3.6.5-1ubuntu1?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.6.5-1ubuntu1

Ecosystem specific 

{
    "availability": "No subscription required",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "binary_version": "3.6.5-1ubuntu1",
            "binary_name": "libsass-dev"
        },
        {
            "binary_version": "3.6.5-1ubuntu1",
            "binary_name": "libsass1"
        },
        {
            "binary_version": "3.6.5-1ubuntu1",
            "binary_name": "libsass1-dbgsym"
        }
    ]
}

Ubuntu:24.10 / libsass

Package

Name
libsass
Purl
pkg:deb/ubuntu/libsass@3.6.5+20231221-3?arch=source&distro=oracular

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.6.5+20231221-3

Ecosystem specific 

{
    "availability": "No subscription required",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "binary_version": "3.6.5+20231221-3",
            "binary_name": "libsass-dev"
        },
        {
            "binary_version": "3.6.5+20231221-3",
            "binary_name": "libsass1"
        },
        {
            "binary_version": "3.6.5+20231221-3",
            "binary_name": "libsass1-dbgsym"
        }
    ]
}

Ubuntu:24.04:LTS / libsass

Package

Name
libsass
Purl
pkg:deb/ubuntu/libsass@3.6.5+20231221-3?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.6.5+20231221-3

Affected versions

3.*

3.6.5+20220909-1ubuntu1

Ecosystem specific 

{
    "availability": "No subscription required",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "binary_version": "3.6.5+20231221-3",
            "binary_name": "libsass-dev"
        },
        {
            "binary_version": "3.6.5+20231221-3",
            "binary_name": "libsass1"
        },
        {
            "binary_version": "3.6.5+20231221-3",
            "binary_name": "libsass1-dbgsym"
        }
    ]
}

Ubuntu:25.04 / libsass

Package

Name
libsass
Purl
pkg:deb/ubuntu/libsass@3.6.6-0ubuntu1?arch=source&distro=plucky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.6.6-0ubuntu1

Affected versions

3.*

3.6.5+20231221-3

Ecosystem specific 

{
    "availability": "No subscription required",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "binary_version": "3.6.6-0ubuntu1",
            "binary_name": "libsass-dev"
        },
        {
            "binary_version": "3.6.6-0ubuntu1",
            "binary_name": "libsass1"
        },
        {
            "binary_version": "3.6.6-0ubuntu1",
            "binary_name": "libsass1-dbgsym"
        }
    ]
}