CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
LOW
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
AI Score
Confidence
High
EPSS
Percentile
71.8%
Issue Overview:
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.(CVE-2018-17189)
Affected Packages:
mod_http2
Note:
This advisory is applicable to Amazon Linux 2 (AL2) Core repository. Visit this FAQ section for the difference between AL2 Core and AL2 Extras advisories.
Issue Correction:
Run yum update mod_http2 to update your system.
New Packages:
aarch64:
mod_http2-1.14.1-1.amzn2.aarch64
mod_http2-debuginfo-1.14.1-1.amzn2.aarch64
i686:
mod_http2-1.14.1-1.amzn2.i686
mod_http2-debuginfo-1.14.1-1.amzn2.i686
src:
mod_http2-1.14.1-1.amzn2.src
x86_64:
mod_http2-1.14.1-1.amzn2.x86_64
mod_http2-debuginfo-1.14.1-1.amzn2.x86_64
Red Hat: CVE-2018-17189
Mitre: CVE-2018-17189
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Amazon Linux | 2 | aarch64 | mod_http2 | < 1.14.1-1.amzn2 | mod_http2-1.14.1-1.amzn2.aarch64.rpm |
Amazon Linux | 2 | aarch64 | mod_http2-debuginfo | < 1.14.1-1.amzn2 | mod_http2-debuginfo-1.14.1-1.amzn2.aarch64.rpm |
Amazon Linux | 2 | i686 | mod_http2 | < 1.14.1-1.amzn2 | mod_http2-1.14.1-1.amzn2.i686.rpm |
Amazon Linux | 2 | i686 | mod_http2-debuginfo | < 1.14.1-1.amzn2 | mod_http2-debuginfo-1.14.1-1.amzn2.i686.rpm |
Amazon Linux | 2 | x86_64 | mod_http2 | < 1.14.1-1.amzn2 | mod_http2-1.14.1-1.amzn2.x86_64.rpm |
Amazon Linux | 2 | x86_64 | mod_http2-debuginfo | < 1.14.1-1.amzn2 | mod_http2-debuginfo-1.14.1-1.amzn2.x86_64.rpm |
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
LOW
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
AI Score
Confidence
High
EPSS
Percentile
71.8%