UBUNTU-CVE-2018-11504

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Source
https://ubuntu.com/security/CVE-2018-11504
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-11504.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2018-11504
Upstream
Published
2018-05-26T21:29:00Z
Modified
2025-10-24T04:47:02Z
Severity
  • 5.5 (Medium) CVSS_V3 - CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

The islist function in markdown.c in libmarkdown.a in DISCOUNT 2.2.3a allows remote attackers to cause a denial of service (heap-based buffer over-read) via a crafted file, as demonstrated by mkd2html.

References

Affected packages

Ubuntu:14.04:LTS / discount

Package

Name
discount
Purl
pkg:deb/ubuntu/discount@2.1.7-1+deb8u1build0.14.04.1?arch=source&distro=trusty

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.1.7-1+deb8u1build0.14.04.1

Affected versions

2.*

2.1.6-2
2.1.7-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "2.1.7-1+deb8u1build0.14.04.1",
            "binary_name": "discount"
        },
        {
            "binary_version": "2.1.7-1+deb8u1build0.14.04.1",
            "binary_name": "libmarkdown2"
        },
        {
            "binary_version": "2.1.7-1+deb8u1build0.14.04.1",
            "binary_name": "libmarkdown2-dev"
        }
    ],
    "availability": "No subscription required"
}

Ubuntu:16.04:LTS / discount

Package

Name
discount
Purl
pkg:deb/ubuntu/discount@2.1.8-2?arch=source&distro=xenial

Affected ranges

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

Affected versions

2.*

2.1.8-2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "2.1.8-2",
            "binary_name": "discount"
        },
        {
            "binary_version": "2.1.8-2",
            "binary_name": "libmarkdown2"
        },
        {
            "binary_version": "2.1.8-2",
            "binary_name": "libmarkdown2-dev"
        }
    ]
}

Ubuntu:18.04:LTS / discount

Package

Name
discount
Purl
pkg:deb/ubuntu/discount@2.2.3b8-2?arch=source&distro=bionic

Affected ranges

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

Affected versions

2.*

2.1.8-2
2.2.3b8-2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "2.2.3b8-2",
            "binary_name": "discount"
        },
        {
            "binary_version": "2.2.3b8-2",
            "binary_name": "libmarkdown2"
        },
        {
            "binary_version": "2.2.3b8-2",
            "binary_name": "libmarkdown2-dev"
        }
    ]
}