UBUNTU-CVE-2021-33195

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Source
https://ubuntu.com/security/CVE-2021-33195
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-33195.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2021-33195
Upstream
Published
2021-08-02T19:15:00Z
Modified
2025-09-08T16:47:11Z
Severity
  • 7.3 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

Go before 1.15.13 and 1.16.x before 1.16.5 has functions for DNS lookups that do not validate replies from DNS servers, and thus a return value may contain an unsafe injection (e.g., XSS) that does not conform to the RFC1035 format.

References

Affected packages

Ubuntu:Pro:18.04:LTS / golang-1.16

Package

Name
golang-1.16
Purl
pkg:deb/ubuntu/golang-1.16@1.16.2-0ubuntu1~18.04.2+esm1?arch=source&distro=esm-apps/bionic

Affected ranges

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

Affected versions

1.*

1.16.2-0ubuntu1~18.04.2
1.16.2-0ubuntu1~18.04.2+esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "golang-1.16",
            "binary_version": "1.16.2-0ubuntu1~18.04.2+esm1"
        },
        {
            "binary_name": "golang-1.16-go",
            "binary_version": "1.16.2-0ubuntu1~18.04.2+esm1"
        },
        {
            "binary_name": "golang-1.16-src",
            "binary_version": "1.16.2-0ubuntu1~18.04.2+esm1"
        }
    ]
}

Ubuntu:Pro:18.04:LTS / golang-1.8

Package

Name
golang-1.8
Purl
pkg:deb/ubuntu/golang-1.8@1.8.3-2ubuntu1.18.04.1?arch=source&distro=esm-apps/bionic

Affected ranges

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

Affected versions

1.*

1.8.3-2ubuntu1
1.8.3-2ubuntu1.18.04.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "golang-1.8",
            "binary_version": "1.8.3-2ubuntu1.18.04.1"
        },
        {
            "binary_name": "golang-1.8-go",
            "binary_version": "1.8.3-2ubuntu1.18.04.1"
        },
        {
            "binary_name": "golang-1.8-go-shared-dev",
            "binary_version": "1.8.3-2ubuntu1.18.04.1"
        },
        {
            "binary_name": "golang-1.8-src",
            "binary_version": "1.8.3-2ubuntu1.18.04.1"
        },
        {
            "binary_name": "libgolang-1.8-std1",
            "binary_version": "1.8.3-2ubuntu1.18.04.1"
        }
    ]
}

Ubuntu:Pro:20.04:LTS / golang-1.16

Package

Name
golang-1.16
Purl
pkg:deb/ubuntu/golang-1.16@1.16.2-0ubuntu1~20.04.1+esm1?arch=source&distro=esm-apps/focal

Affected ranges

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

Affected versions

1.*

1.16.2-0ubuntu1~20.04
1.16.2-0ubuntu1~20.04.1
1.16.2-0ubuntu1~20.04.1+esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "golang-1.16",
            "binary_version": "1.16.2-0ubuntu1~20.04.1+esm1"
        },
        {
            "binary_name": "golang-1.16-go",
            "binary_version": "1.16.2-0ubuntu1~20.04.1+esm1"
        },
        {
            "binary_name": "golang-1.16-src",
            "binary_version": "1.16.2-0ubuntu1~20.04.1+esm1"
        }
    ]
}