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ubuntu-cve-2018-17189
Vulnerability from osv_ubuntu
Published
2019-01-30 00:00
Modified
2026-04-22 07:38
Summary
Details
In Apache HTTP server versions 2.4.37 and prior, by sending request bodies in a slow loris way to plain resources, the h2 stream for that request unnecessarily occupied a server thread cleaning up that incoming data. This affects only HTTP/2 (mod_http2) connections.
Severity
5.3 (Medium)
5.3 (Medium)
N/A (UNKNOWN)
References
{
"affected": [
{
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "apache2",
"binary_version": "2.4.29-1ubuntu4.6"
},
{
"binary_name": "apache2-bin",
"binary_version": "2.4.29-1ubuntu4.6"
},
{
"binary_name": "apache2-data",
"binary_version": "2.4.29-1ubuntu4.6"
},
{
"binary_name": "apache2-suexec-custom",
"binary_version": "2.4.29-1ubuntu4.6"
},
{
"binary_name": "apache2-suexec-pristine",
"binary_version": "2.4.29-1ubuntu4.6"
},
{
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}
]
},
"package": {
"ecosystem": "Ubuntu:18.04:LTS",
"name": "apache2",
"purl": "pkg:deb/ubuntu/apache2@2.4.29-1ubuntu4.6?arch=source\u0026distro=bionic"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.4.29-1ubuntu4.6"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
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"2.4.29-1ubuntu1",
"2.4.29-1ubuntu2",
"2.4.29-1ubuntu3",
"2.4.29-1ubuntu4",
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}
],
"aliases": [],
"details": "In Apache HTTP server versions 2.4.37 and prior, by sending request bodies in a slow loris way to plain resources, the h2 stream for that request unnecessarily occupied a server thread cleaning up that incoming data. This affects only HTTP/2 (mod_http2) connections.",
"id": "UBUNTU-CVE-2018-17189",
"modified": "2026-04-22T07:38:44Z",
"published": "2019-01-30T00:00:00Z",
"references": [
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2018-17189"
},
{
"type": "REPORT",
"url": "https://www.openwall.com/lists/oss-security/2019/01/22/2"
},
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-3937-1"
},
{
"type": "REPORT",
"url": "https://www.cve.org/CVERecord?id=CVE-2018-17189"
}
],
"related": [
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],
"schema_version": "1.7.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
"type": "CVSS_V3"
},
{
"score": "low",
"type": "Ubuntu"
}
],
"upstream": [
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]
}
CVE-2018-17189 (GCVE-0-2018-17189)
Vulnerability from cvelistv5 – Published: 2019-01-30 22:00 – Updated: 2024-09-17 01:21
VLAI
EPSS
VEX
Summary
In Apache HTTP server versions 2.4.37 and prior, by sending request bodies in a slow loris way to plain resources, the h2 stream for that request unnecessarily occupied a server thread cleaning up that incoming data. This affects only HTTP/2 (mod_http2) connections.
Severity
No CVSS data available.
CWE
- mod_http2, DoS via slow request bodies
Assigner
References
30 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Apache Software Foundation | Apache HTTP Server |
Affected:
2.4.17 to 2.4.37
|
Date Public
2019-01-22 00:00
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usn-3937-1
Vulnerability from osv_ubuntu
Published
2019-04-04 15:08
Modified
2026-04-22 07:36
Summary
apache2 vulnerabilities
Details
Charles Fol discovered that the Apache HTTP Server incorrectly handled the scoreboard shared memory area. A remote attacker able to upload and run scripts could possibly use this issue to execute arbitrary code with root privileges. (CVE-2019-0211)
It was discovered that the Apache HTTP Server HTTP/2 module incorrectly handled certain requests. A remote attacker could possibly use this issue to cause the server to consume resources, leading to a denial of service. This issue only affected Ubuntu 18.04 LTS and Ubuntu 18.10. (CVE-2018-17189)
It was discovered that the Apache HTTP Server incorrectly handled session expiry times. When used with mod_session_cookie, this may result in the session expiry time to be ignored, contrary to expectations. (CVE-2018-17199)
Craig Young discovered that the Apache HTTP Server HTTP/2 module incorrectly handled certain requests. A remote attacker could possibly use this issue to cause the server to process requests incorrectly. This issue only affected Ubuntu 18.04 LTS and Ubuntu 18.10. (CVE-2019-0196)
Simon Kappel discovered that the Apache HTTP Server mod_auth_digest module incorrectly handled threads. A remote attacker with valid credentials could possibly use this issue to authenticate using another username, bypassing access control restrictions. (CVE-2019-0217)
Bernhard Lorenz discovered that the Apache HTTP Server was inconsistent when processing requests containing multiple consecutive slashes. This could lead to directives such as LocationMatch and RewriteRule to perform contrary to expectations. (CVE-2019-0220)
References
{
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},
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
"type": "CVSS_V3"
},
{
"score": "low",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2018-17199",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
"type": "CVSS_V3"
},
{
"score": "low",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2019-0196",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
"type": "CVSS_V3"
},
{
"score": "low",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2019-0211",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "high",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2019-0217",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2019-0220",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
"type": "CVSS_V3"
},
{
"score": "low",
"type": "Ubuntu"
}
]
}
],
"ecosystem": "Ubuntu:18.04:LTS"
}
},
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "apache2",
"binary_version": "2.4.29-1ubuntu4.6"
},
{
"binary_name": "apache2-bin",
"binary_version": "2.4.29-1ubuntu4.6"
},
{
"binary_name": "apache2-data",
"binary_version": "2.4.29-1ubuntu4.6"
},
{
"binary_name": "apache2-suexec-custom",
"binary_version": "2.4.29-1ubuntu4.6"
},
{
"binary_name": "apache2-suexec-pristine",
"binary_version": "2.4.29-1ubuntu4.6"
},
{
"binary_name": "apache2-utils",
"binary_version": "2.4.29-1ubuntu4.6"
}
]
},
"package": {
"ecosystem": "Ubuntu:18.04:LTS",
"name": "apache2",
"purl": "pkg:deb/ubuntu/apache2@2.4.29-1ubuntu4.6?arch=source\u0026distro=bionic"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.4.29-1ubuntu4.6"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.4.27-2ubuntu3",
"2.4.29-1ubuntu1",
"2.4.29-1ubuntu2",
"2.4.29-1ubuntu3",
"2.4.29-1ubuntu4",
"2.4.29-1ubuntu4.1",
"2.4.29-1ubuntu4.2",
"2.4.29-1ubuntu4.3",
"2.4.29-1ubuntu4.4",
"2.4.29-1ubuntu4.5"
]
}
],
"aliases": [],
"details": "Charles Fol discovered that the Apache HTTP Server incorrectly handled the\nscoreboard shared memory area. A remote attacker able to upload and run\nscripts could possibly use this issue to execute arbitrary code with root\nprivileges. (CVE-2019-0211)\n\nIt was discovered that the Apache HTTP Server HTTP/2 module incorrectly\nhandled certain requests. A remote attacker could possibly use this issue\nto cause the server to consume resources, leading to a denial of service.\nThis issue only affected Ubuntu 18.04 LTS and Ubuntu 18.10.\n(CVE-2018-17189)\n\nIt was discovered that the Apache HTTP Server incorrectly handled session\nexpiry times. When used with mod_session_cookie, this may result in the\nsession expiry time to be ignored, contrary to expectations.\n(CVE-2018-17199)\n\nCraig Young discovered that the Apache HTTP Server HTTP/2 module\nincorrectly handled certain requests. A remote attacker could possibly use\nthis issue to cause the server to process requests incorrectly. This issue\nonly affected Ubuntu 18.04 LTS and Ubuntu 18.10. (CVE-2019-0196)\n\nSimon Kappel discovered that the Apache HTTP Server mod_auth_digest module\nincorrectly handled threads. A remote attacker with valid credentials could\npossibly use this issue to authenticate using another username, bypassing\naccess control restrictions. (CVE-2019-0217)\n\nBernhard Lorenz discovered that the Apache HTTP Server was inconsistent\nwhen processing requests containing multiple consecutive slashes. This\ncould lead to directives such as LocationMatch and RewriteRule to perform\ncontrary to expectations. (CVE-2019-0220)\n",
"id": "USN-3937-1",
"modified": "2026-04-22T07:36:36Z",
"published": "2019-04-04T15:08:53Z",
"references": [
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-3937-1"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2018-17189"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2018-17199"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2019-0196"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2019-0211"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2019-0217"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2019-0220"
}
],
"related": [],
"schema_version": "1.7.0",
"summary": "apache2 vulnerabilities",
"upstream": [
"UBUNTU-CVE-2018-17189",
"UBUNTU-CVE-2018-17199",
"UBUNTU-CVE-2019-0196",
"UBUNTU-CVE-2019-0211",
"UBUNTU-CVE-2019-0217",
"UBUNTU-CVE-2019-0220"
]
}
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Trend slope:
-
(linear fit over daily sighting counts)
Show additional events:
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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