UnratedFix available
python3.8 vulnerabilities
Type: advisorySources: OSV
USN-4333-1 fixed vulnerabilities in Python. This update provides the corresponding update for Ubuntu 20.04 LTS. Original advisory details: It was discovered that Python incorrectly stripped certain characters from requests. A remote attacker could use this issue to perform CRLF injection. (CVE-2019-18348) It was discovered that Python incorrectly handled certain HTTP requests. An attacker could possibly use this issue to cause a denial of service. (CVE-2020-8492)
- Products
- python3.8
- Affected versions
- 3.8.0-1, 3.8.0-2, 3.8.0-3, 3.8.0-4, 3.8.0-5, 3.8.1-2ubuntu3, 3.8.2-1, 3.8.2-1ubuntu1, 3.8.2~rc1-1ubuntu1
- Fixed versions
- 3.8.2-1ubuntu1.1
- CVEs
- CVE-2019-18348, CVE-2020-8492
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 28 Oct 2026, 10:04 UTC · Revision 1
Source evidence
USN-4333-1 fixed vulnerabilities in Python. This update provides the corresponding update for Ubuntu 20.04 LTS. Original advisory details: It was discovered that Python incorrectly stripped certain characters from requests. A remote attacker could use this issue to perform CRLF injection. (CVE-2019-18348) It was discovered that Python incorrectly handled certain HTTP requests. An attacker could possibly use this issue to cause a denial of service. (CVE-2020-8492)
osv:USN-4333-2
python3.8
Fixed versions: 3.8.2-1ubuntu1.1
Complete source record
{
"id": "7ba6557bab61a4079834fa32d92e75f32e85b674bc56f2bad74d09c35fd9daaf",
"url": "https://osv.dev/vulnerability/USN-4333-2",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "python3.8 vulnerabilities",
"summary": "USN-4333-1 fixed vulnerabilities in Python. This update provides the corresponding update for Ubuntu 20.04 LTS. Original advisory details: It was discovered that Python incorrectly stripped certain characters from requests. A remote attacker could use this issue to perform CRLF injection. (CVE-2019-18348) It was discovered that Python incorrectly handled certain HTTP requests. An attacker could possibly use this issue to cause a denial of service. (CVE-2020-8492)",
"evidence": "osv:USN-4333-2",
"products": [
{
"name": {
"value": "python3.8",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "3.8.2-1ubuntu1.1",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": [
{
"value": "3.8.0-1",
"evidence": "/affected/0/versions"
},
{
"value": "3.8.0-2",
"evidence": "/affected/0/versions"
},
{
"value": "3.8.0-3",
"evidence": "/affected/0/versions"
},
{
"value": "3.8.0-4",
"evidence": "/affected/0/versions"
},
{
"value": "3.8.0-5",
"evidence": "/affected/0/versions"
},
{
"value": "3.8.1-2ubuntu3",
"evidence": "/affected/0/versions"
},
{
"value": "3.8.2~rc1-1ubuntu1",
"evidence": "/affected/0/versions"
},
{
"value": "3.8.2-1",
"evidence": "/affected/0/versions"
},
{
"value": "3.8.2-1ubuntu1",
"evidence": "/affected/0/versions"
}
]
}
],
"severity": "unknown",
"structured": {
"id": "USN-4333-2",
"aliases": [
"USN-4333-2"
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "3.8.2-1ubuntu1.1"
}
]
}
],
"package": {
"name": "python3.8",
"purl": "pkg:deb/ubuntu/python3.8?arch=source&distro=focal",
"ecosystem": "Ubuntu:20.04:LTS"
},
"versions": [
"3.8.0-1",
"3.8.0-2",
"3.8.0-3",
"3.8.0-4",
"3.8.0-5",
"3.8.1-2ubuntu3",
"3.8.2~rc1-1ubuntu1",
"3.8.2-1",
"3.8.2-1ubuntu1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4333-2.json",
"cves_map": {
"cves": [
{
"id": "CVE-2019-18348",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"
},
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
},
{
"id": "CVE-2020-8492",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"
},
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"
},
{
"type": "Ubuntu",
"score": "low"
}
]
}
],
"ecosystem": "Ubuntu:20.04:LTS"
}
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "idle-python3.8",
"binary_version": "3.8.2-1ubuntu1.1"
},
{
"binary_name": "libpython3.8",
"binary_version": "3.8.2-1ubuntu1.1"
},
{
"binary_name": "libpython3.8-minimal",
"binary_version": "3.8.2-1ubuntu1.1"
},
{
"binary_name": "libpython3.8-stdlib",
"binary_version": "3.8.2-1ubuntu1.1"
},
{
"binary_name": "libpython3.8-testsuite",
"binary_version": "3.8.2-1ubuntu1.1"
},
{
"binary_name": "python3.8",
"binary_version": "3.8.2-1ubuntu1.1"
},
{
"binary_name": "python3.8-examples",
"binary_version": "3.8.2-1ubuntu1.1"
},
{
"binary_name": "python3.8-minimal",
"binary_version": "3.8.2-1ubuntu1.1"
},
{
"binary_name": "python3.8-venv",
"binary_version": "3.8.2-1ubuntu1.1"
}
],
"availability": "No subscription required"
}
}
],
"modified": "2026-10-08T19:46:32.895248314Z",
"provider": "osv",
"upstream": [
"CVE-2019-18348",
"CVE-2020-8492",
"UBUNTU-CVE-2019-18348",
"UBUNTU-CVE-2020-8492"
],
"references": [
"https://ubuntu.com/security/notices/USN-4333-2",
"https://ubuntu.com/security/CVE-2019-18348",
"https://ubuntu.com/security/CVE-2020-8492"
]
},
"related_cves": [
{
"value": "CVE-2019-18348",
"evidence": "/upstream"
},
{
"value": "CVE-2020-8492",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-osv",
"document_id": 104519,
"published_at": "2020-04-30T11:37:51+00:00"
}