USN-4532-1

See a problem?
Please try reporting it to the source first.
Source
https://ubuntu.com/security/notices/USN-4532-1
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4532-1.json
JSON Data
https://api.osv.dev/v1/vulns/USN-4532-1
Upstream
Related
Published
2020-09-22T16:15:05.303658Z
Modified
2025-10-13T04:35:14Z
Summary
netty-3.9 vulnerabilities
Details

It was discovered that Netty incorrectly handled certain HTTP headers. By sending an HTTP header with whitespace before the colon, a remote attacker could possibly use this issue to perform an HTTP request smuggling attack. (CVE-2019-16869)

It was discovered that Netty incorrectly handled certain HTTP headers. By sending an HTTP header that lacks a colon, a remote attacker could possibly use this issue to perform an HTTP request smuggling attack. (CVE-2019-20444)

It was discovered that Netty incorrectly handled certain HTTP headers. By sending a Content-Length header accompanied by a second Content-Length header, or by a Transfer-Encoding header, a remote attacker could possibly use this issue to perform an HTTP request smuggling attack. (CVE-2019-20445)

References

Affected packages

Ubuntu:18.04:LTS / netty-3.9

Package

Name
netty-3.9
Purl
pkg:deb/ubuntu/netty-3.9@3.9.9.Final-1+deb9u1build0.18.04.1?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.9.9.Final-1+deb9u1build0.18.04.1

Affected versions

3.*

3.9.9.Final-1

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "3.9.9.Final-1+deb9u1build0.18.04.1",
            "binary_name": "libnetty-3.9-java"
        }
    ]
}

Database specific

cves_map

{
    "cves": [
        {
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ],
            "id": "CVE-2019-16869"
        },
        {
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ],
            "id": "CVE-2019-20444"
        },
        {
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ],
            "id": "CVE-2019-20445"
        }
    ],
    "ecosystem": "Ubuntu:18.04:LTS"
}