UBUNTU-CVE-2020-6080

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Source
https://ubuntu.com/security/CVE-2020-6080
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-6080.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2020-6080
Upstream
Downstream
Related
Published
2020-03-24T21:15:00Z
Modified
2025-09-08T16:45:57Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

An exploitable denial-of-service vulnerability exists in the resource allocation handling of Videolabs libmicrodns 0.1.0. When encountering errors while parsing mDNS messages, some allocated data is not freed, possibly leading to a denial-of-service condition via resource exhaustion. An attacker can send one mDNS message repeatedly to trigger this vulnerability through the function rrreadRR [5] reads the current resource record, except for the RDATA section. This is read by the loop at in rrread. For each RR type, a different function is called. When the RR type is 0x10, the function rrread_TXT is called at [6].

References

Affected packages

Ubuntu:Pro:18.04:LTS / libmicrodns

Package

Name
libmicrodns
Purl
pkg:deb/ubuntu/libmicrodns@0.0.8-1ubuntu0.1~esm1?arch=source&distro=esm-apps/bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0.0.8-1ubuntu0.1~esm1

Affected versions

0.*

0.0.7-2
0.0.8-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libmicrodns-dev",
            "binary_version": "0.0.8-1ubuntu0.1~esm1"
        },
        {
            "binary_name": "libmicrodns0",
            "binary_version": "0.0.8-1ubuntu0.1~esm1"
        }
    ],
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro"
}

Ubuntu:Pro:18.04:LTS / vlc

Package

Name
vlc
Purl
pkg:deb/ubuntu/vlc@3.0.8-0ubuntu18.04.1+esm3?arch=source&distro=esm-apps/bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.0.8-0ubuntu18.04.1+esm3

Affected versions

2.*

2.2.6-6
2.2.6-6build1
2.2.7-1
2.2.8-1
2.2.8-1ubuntu4
2.2.8-2

3.*

3.0.0~rc1-1ubuntu1
3.0.0~rc1-1ubuntu3
3.0.0~rc2-1ubuntu1
3.0.0~rc2-2ubuntu1
3.0.0~rc2-2ubuntu2
3.0.0~rc4-1ubuntu1
3.0.0~rc7-2ubuntu1
3.0.0~rc8-1ubuntu1
3.0.0-1ubuntu1
3.0.1-1ubuntu5
3.0.1-2ubuntu1
3.0.1-2ubuntu2
3.0.1-3
3.0.1-3build1
3.0.2-0ubuntu0.1
3.0.3-1-1ubuntu1
3.0.4-1ubuntu0.2
3.0.7.1-0ubuntu18.04.1
3.0.8-0ubuntu18.04.1
3.0.8-0ubuntu18.04.1+esm1
3.0.8-0ubuntu18.04.1+esm2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libvlc-bin",
            "binary_version": "3.0.8-0ubuntu18.04.1+esm3"
        },
        {
            "binary_name": "libvlc-dev",
            "binary_version": "3.0.8-0ubuntu18.04.1+esm3"
        },
        {
            "binary_name": "libvlc5",
            "binary_version": "3.0.8-0ubuntu18.04.1+esm3"
        },
        {
            "binary_name": "libvlccore-dev",
            "binary_version": "3.0.8-0ubuntu18.04.1+esm3"
        },
        {
            "binary_name": "libvlccore9",
            "binary_version": "3.0.8-0ubuntu18.04.1+esm3"
        },
        {
            "binary_name": "vlc",
            "binary_version": "3.0.8-0ubuntu18.04.1+esm3"
        },
        {
            "binary_name": "vlc-bin",
            "binary_version": "3.0.8-0ubuntu18.04.1+esm3"
        },
        {
            "binary_name": "vlc-data",
            "binary_version": "3.0.8-0ubuntu18.04.1+esm3"
        },
        {
            "binary_name": "vlc-l10n",
            "binary_version": "3.0.8-0ubuntu18.04.1+esm3"
        },
        {
            "binary_name": "vlc-plugin-access-extra",
            "binary_version": "3.0.8-0ubuntu18.04.1+esm3"
        },
        {
            "binary_name": "vlc-plugin-base",
            "binary_version": "3.0.8-0ubuntu18.04.1+esm3"
        },
        {
            "binary_name": "vlc-plugin-fluidsynth",
            "binary_version": "3.0.8-0ubuntu18.04.1+esm3"
        },
        {
            "binary_name": "vlc-plugin-jack",
            "binary_version": "3.0.8-0ubuntu18.04.1+esm3"
        },
        {
            "binary_name": "vlc-plugin-notify",
            "binary_version": "3.0.8-0ubuntu18.04.1+esm3"
        },
        {
            "binary_name": "vlc-plugin-qt",
            "binary_version": "3.0.8-0ubuntu18.04.1+esm3"
        },
        {
            "binary_name": "vlc-plugin-samba",
            "binary_version": "3.0.8-0ubuntu18.04.1+esm3"
        },
        {
            "binary_name": "vlc-plugin-skins2",
            "binary_version": "3.0.8-0ubuntu18.04.1+esm3"
        },
        {
            "binary_name": "vlc-plugin-svg",
            "binary_version": "3.0.8-0ubuntu18.04.1+esm3"
        },
        {
            "binary_name": "vlc-plugin-video-output",
            "binary_version": "3.0.8-0ubuntu18.04.1+esm3"
        },
        {
            "binary_name": "vlc-plugin-video-splitter",
            "binary_version": "3.0.8-0ubuntu18.04.1+esm3"
        },
        {
            "binary_name": "vlc-plugin-visualization",
            "binary_version": "3.0.8-0ubuntu18.04.1+esm3"
        },
        {
            "binary_name": "vlc-plugin-zvbi",
            "binary_version": "3.0.8-0ubuntu18.04.1+esm3"
        }
    ],
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro"
}