UBUNTU-CVE-2021-38597

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Source
https://ubuntu.com/security/CVE-2021-38597
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-38597.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2021-38597
Upstream
Published
2021-08-12T15:15:00Z
Modified
2025-09-08T16:47:18Z
Severity
  • 5.9 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

wolfSSL before 4.8.1 incorrectly skips OCSP verification in certain situations of irrelevant response data that contains the NoCheck extension.

References

Affected packages

Ubuntu:Pro:16.04:LTS / wolfssl

Package

Name
wolfssl
Purl
pkg:deb/ubuntu/wolfssl@3.4.8+dfsg-1?arch=source&distro=esm-apps/xenial

Affected ranges

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

Affected versions

3.*

3.4.8+dfsg-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libcyassl5",
            "binary_version": "3.4.8+dfsg-1"
        },
        {
            "binary_name": "libwolfssl-dev",
            "binary_version": "3.4.8+dfsg-1"
        },
        {
            "binary_name": "libwolfssl0",
            "binary_version": "3.4.8+dfsg-1"
        }
    ]
}

Ubuntu:Pro:18.04:LTS / wolfssl

Package

Name
wolfssl
Purl
pkg:deb/ubuntu/wolfssl@3.13.0+dfsg-1?arch=source&distro=esm-apps/bionic

Affected ranges

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

Affected versions

3.*

3.10.2+dfsg-2
3.12.0+dfsg-1
3.12.2+dfsg-1
3.13.0+dfsg-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libwolfssl-dev",
            "binary_version": "3.13.0+dfsg-1"
        },
        {
            "binary_name": "libwolfssl15",
            "binary_version": "3.13.0+dfsg-1"
        }
    ]
}

Ubuntu:Pro:20.04:LTS / wolfssl

Package

Name
wolfssl
Purl
pkg:deb/ubuntu/wolfssl@4.3.0+dfsg-2?arch=source&distro=esm-apps/focal

Affected ranges

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

Affected versions

4.*

4.1.0+dfsg-2
4.2.0+dfsg-1
4.2.0+dfsg-2
4.2.0+dfsg-3
4.3.0+dfsg-2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libwolfssl-dev",
            "binary_version": "4.3.0+dfsg-2"
        },
        {
            "binary_name": "libwolfssl24",
            "binary_version": "4.3.0+dfsg-2"
        }
    ]
}

Ubuntu:22.04:LTS / wolfssl

Package

Name
wolfssl
Purl
pkg:deb/ubuntu/wolfssl@5.2.0-2?arch=source&distro=jammy

Affected ranges

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

Affected versions

4.*

4.6.0-3

5.*

5.0.0-1
5.1.1-1
5.2.0-1
5.2.0-2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libwolfssl-dev",
            "binary_version": "5.2.0-2"
        },
        {
            "binary_name": "libwolfssl32",
            "binary_version": "5.2.0-2"
        }
    ]
}

Ubuntu:24.04:LTS / wolfssl

Package

Name
wolfssl
Purl
pkg:deb/ubuntu/wolfssl@5.6.6-1.3build1?arch=source&distro=noble

Affected ranges

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

Affected versions

5.*

5.5.4-2
5.5.4-2.1
5.6.4-2
5.6.6-1.2
5.6.6-1.3
5.6.6-1.3build1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libwolfssl-dev",
            "binary_version": "5.6.6-1.3build1"
        },
        {
            "binary_name": "libwolfssl42t64",
            "binary_version": "5.6.6-1.3build1"
        }
    ]
}

Ubuntu:25.04 / wolfssl

Package

Name
wolfssl
Purl
pkg:deb/ubuntu/wolfssl@5.7.2-0.1?arch=source&distro=plucky

Affected ranges

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

Affected versions

5.*

5.7.2-0.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libwolfssl-dev",
            "binary_version": "5.7.2-0.1"
        },
        {
            "binary_name": "libwolfssl42t64",
            "binary_version": "5.7.2-0.1"
        }
    ]
}