USN-5090-2

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Source
https://ubuntu.com/security/notices/USN-5090-2
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5090-2.json
JSON Data
https://api.test.osv.dev/v1/vulns/USN-5090-2
Upstream
Related
Published
2021-09-27T16:46:11.906618Z
Modified
2025-10-13T04:35:37Z
Summary
apache2 vulnerabilities
Details

USN-5090-1 fixed several vulnerabilities in Apache. This update provides the corresponding update for Ubuntu 14.04 ESM and Ubuntu 16.04 ESM.

Original advisory details:

It was discovered that the Apache HTTP Server incorrectly handled certain malformed requests. A remote attacker could possibly use this issue to cause the server to crash, resulting in a denial of service. (CVE-2021-34798)

It was discovered that the Apache HTTP Server incorrectly handled escaping quotes. If the server was configured with third-party modules, a remote attacker could use this issue to cause the server to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2021-39275)

It was discovered that the Apache mod_proxy module incorrectly handled certain request uri-paths. A remote attacker could possibly use this issue to cause the server to forward requests to arbitrary origin servers. (CVE-2021-40438)

References

Affected packages

Ubuntu:Pro:14.04:LTS / apache2

Package

Name
apache2
Purl
pkg:deb/ubuntu/apache2@2.4.7-1ubuntu4.22+esm2?arch=source&distro=trusty/esm

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.4.7-1ubuntu4.22+esm2

Affected versions

2.*

2.4.6-2ubuntu2
2.4.6-2ubuntu3
2.4.6-2ubuntu4
2.4.7-1ubuntu1
2.4.7-1ubuntu2
2.4.7-1ubuntu3
2.4.7-1ubuntu4
2.4.7-1ubuntu4.1
2.4.7-1ubuntu4.4
2.4.7-1ubuntu4.5
2.4.7-1ubuntu4.6
2.4.7-1ubuntu4.7
2.4.7-1ubuntu4.8
2.4.7-1ubuntu4.9
2.4.7-1ubuntu4.10
2.4.7-1ubuntu4.11
2.4.7-1ubuntu4.13
2.4.7-1ubuntu4.15
2.4.7-1ubuntu4.16
2.4.7-1ubuntu4.17
2.4.7-1ubuntu4.18
2.4.7-1ubuntu4.19
2.4.7-1ubuntu4.20
2.4.7-1ubuntu4.21
2.4.7-1ubuntu4.22
2.4.7-1ubuntu4.22+esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "2.4.7-1ubuntu4.22+esm2",
            "binary_name": "apache2"
        },
        {
            "binary_version": "2.4.7-1ubuntu4.22+esm2",
            "binary_name": "apache2-bin"
        },
        {
            "binary_version": "2.4.7-1ubuntu4.22+esm2",
            "binary_name": "apache2-data"
        },
        {
            "binary_version": "2.4.7-1ubuntu4.22+esm2",
            "binary_name": "apache2-dev"
        },
        {
            "binary_version": "2.4.7-1ubuntu4.22+esm2",
            "binary_name": "apache2-mpm-event"
        },
        {
            "binary_version": "2.4.7-1ubuntu4.22+esm2",
            "binary_name": "apache2-mpm-itk"
        },
        {
            "binary_version": "2.4.7-1ubuntu4.22+esm2",
            "binary_name": "apache2-mpm-prefork"
        },
        {
            "binary_version": "2.4.7-1ubuntu4.22+esm2",
            "binary_name": "apache2-mpm-worker"
        },
        {
            "binary_version": "2.4.7-1ubuntu4.22+esm2",
            "binary_name": "apache2-suexec"
        },
        {
            "binary_version": "2.4.7-1ubuntu4.22+esm2",
            "binary_name": "apache2-suexec-custom"
        },
        {
            "binary_version": "2.4.7-1ubuntu4.22+esm2",
            "binary_name": "apache2-suexec-pristine"
        },
        {
            "binary_version": "2.4.7-1ubuntu4.22+esm2",
            "binary_name": "apache2-utils"
        },
        {
            "binary_version": "2.4.7-1ubuntu4.22+esm2",
            "binary_name": "apache2.2-bin"
        },
        {
            "binary_version": "1:2.4.7-1ubuntu4.22+esm2",
            "binary_name": "libapache2-mod-macro"
        },
        {
            "binary_version": "1:2.4.7-1ubuntu4.22+esm2",
            "binary_name": "libapache2-mod-proxy-html"
        }
    ],
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"
}

Database specific

cves_map

{
    "ecosystem": "Ubuntu:Pro:14.04:LTS",
    "cves": [
        {
            "id": "CVE-2021-34798",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ]
        },
        {
            "id": "CVE-2021-39275",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ]
        }
    ]
}

Ubuntu:Pro:16.04:LTS / apache2

Package

Name
apache2
Purl
pkg:deb/ubuntu/apache2@2.4.18-2ubuntu3.17+esm2?arch=source&distro=esm-infra/xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.4.18-2ubuntu3.17+esm2

Affected versions

2.*

2.4.12-2ubuntu2
2.4.17-1ubuntu1
2.4.17-2ubuntu1
2.4.17-3ubuntu1
2.4.18-1ubuntu1
2.4.18-2ubuntu1
2.4.18-2ubuntu2
2.4.18-2ubuntu3
2.4.18-2ubuntu3.1
2.4.18-2ubuntu3.2
2.4.18-2ubuntu3.3
2.4.18-2ubuntu3.4
2.4.18-2ubuntu3.5
2.4.18-2ubuntu3.7
2.4.18-2ubuntu3.8
2.4.18-2ubuntu3.9
2.4.18-2ubuntu3.10
2.4.18-2ubuntu3.12
2.4.18-2ubuntu3.13
2.4.18-2ubuntu3.14
2.4.18-2ubuntu3.15
2.4.18-2ubuntu3.17
2.4.18-2ubuntu3.17+esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "2.4.18-2ubuntu3.17+esm2",
            "binary_name": "apache2"
        },
        {
            "binary_version": "2.4.18-2ubuntu3.17+esm2",
            "binary_name": "apache2-bin"
        },
        {
            "binary_version": "2.4.18-2ubuntu3.17+esm2",
            "binary_name": "apache2-data"
        },
        {
            "binary_version": "2.4.18-2ubuntu3.17+esm2",
            "binary_name": "apache2-dev"
        },
        {
            "binary_version": "2.4.18-2ubuntu3.17+esm2",
            "binary_name": "apache2-suexec-custom"
        },
        {
            "binary_version": "2.4.18-2ubuntu3.17+esm2",
            "binary_name": "apache2-suexec-pristine"
        },
        {
            "binary_version": "2.4.18-2ubuntu3.17+esm2",
            "binary_name": "apache2-utils"
        }
    ],
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"
}

Database specific

cves_map

{
    "ecosystem": "Ubuntu:Pro:16.04:LTS",
    "cves": [
        {
            "id": "CVE-2021-34798",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ]
        },
        {
            "id": "CVE-2021-39275",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ]
        }
    ]
}