UBUNTU-CVE-2021-30027

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Source

https://ubuntu.com/security/CVE-2021-30027

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-30027.json

JSON Data

https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2021-30027

Upstream

CVE-2021-30027

Published

2021-04-29T15:15:00Z

Modified

2026-04-22T14:42:19.767368Z

Severity

5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H CVSS Calculator
Ubuntu - medium

Summary

[none]

Details

mdanalyzeline in md4c.c in md4c 0.4.7 allows attackers to trigger use of uninitialized memory, and cause a denial of service via a malformed Markdown document.

References

Affected packages

Ubuntu:20.04:LTS / md4c

Package

Name: md4c
Purl: pkg:deb/ubuntu/md4c@0.4.3-1?arch=source&distro=focal

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

0.*

0.3.4-1

0.4.1-1

0.4.2-1

0.4.3-1

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "libmd4c0",
            "binary_version": "0.4.3-1"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-30027.json"