9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.1 High
AI Score
Confidence
High
7.5 High
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
0.738 High
EPSS
Percentile
98.0%
Issue Overview:
A flaw was found in Apache httpd. The mod_proxy_wstunnel module tunnels non-upgraded connections. (CVE-2019-17567)
A flaw was found in HTTPd. In some Apache HTTP Server versions, unprivileged local users can stop HTTPd on Windows. The highest threat from this vulnerability is to system availability. (CVE-2020-13938)
A flaw was found In Apache httpd. The mod_proxy has a NULL pointer dereference. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. (CVE-2020-13950)
A flaw was found in Apache httpd. The mod_auth_digest has a single zero byte stack overflow. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. (CVE-2020-35452)
A NULL pointer dereference was found in Apache httpd mod_session. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. (CVE-2021-26690)
A heap overflow flaw was found In Apache httpd mod_session. The highest threat from this vulnerability is to system availability. (CVE-2021-26691)
A flaw was found in Apache httpd. A possible regression from an earlier security fix broke behavior of MergeSlashes. The highest threat from this vulnerability is to data integrity. (CVE-2021-30641)
Affected Packages:
httpd
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 httpd to update your system.
New Packages:
aarch64:
httpd-2.4.48-2.amzn2.aarch64
httpd-devel-2.4.48-2.amzn2.aarch64
httpd-tools-2.4.48-2.amzn2.aarch64
mod_ssl-2.4.48-2.amzn2.aarch64
mod_md-2.4.48-2.amzn2.aarch64
mod_proxy_html-2.4.48-2.amzn2.aarch64
mod_ldap-2.4.48-2.amzn2.aarch64
mod_session-2.4.48-2.amzn2.aarch64
httpd-debuginfo-2.4.48-2.amzn2.aarch64
i686:
httpd-2.4.48-2.amzn2.i686
httpd-devel-2.4.48-2.amzn2.i686
httpd-tools-2.4.48-2.amzn2.i686
mod_ssl-2.4.48-2.amzn2.i686
mod_md-2.4.48-2.amzn2.i686
mod_proxy_html-2.4.48-2.amzn2.i686
mod_ldap-2.4.48-2.amzn2.i686
mod_session-2.4.48-2.amzn2.i686
httpd-debuginfo-2.4.48-2.amzn2.i686
noarch:
httpd-manual-2.4.48-2.amzn2.noarch
httpd-filesystem-2.4.48-2.amzn2.noarch
src:
httpd-2.4.48-2.amzn2.src
x86_64:
httpd-2.4.48-2.amzn2.x86_64
httpd-devel-2.4.48-2.amzn2.x86_64
httpd-tools-2.4.48-2.amzn2.x86_64
mod_ssl-2.4.48-2.amzn2.x86_64
mod_md-2.4.48-2.amzn2.x86_64
mod_proxy_html-2.4.48-2.amzn2.x86_64
mod_ldap-2.4.48-2.amzn2.x86_64
mod_session-2.4.48-2.amzn2.x86_64
httpd-debuginfo-2.4.48-2.amzn2.x86_64
Red Hat: CVE-2019-17567, CVE-2020-13938, CVE-2020-13950, CVE-2020-35452, CVE-2021-26690, CVE-2021-26691, CVE-2021-30641
Mitre: CVE-2019-17567, CVE-2020-13938, CVE-2020-13950, CVE-2020-35452, CVE-2021-26690, CVE-2021-26691, CVE-2021-30641
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Amazon Linux | 2 | aarch64 | httpd | < 2.4.48-2.amzn2 | httpd-2.4.48-2.amzn2.aarch64.rpm |
Amazon Linux | 2 | aarch64 | httpd-devel | < 2.4.48-2.amzn2 | httpd-devel-2.4.48-2.amzn2.aarch64.rpm |
Amazon Linux | 2 | aarch64 | httpd-tools | < 2.4.48-2.amzn2 | httpd-tools-2.4.48-2.amzn2.aarch64.rpm |
Amazon Linux | 2 | aarch64 | mod_ssl | < 2.4.48-2.amzn2 | mod_ssl-2.4.48-2.amzn2.aarch64.rpm |
Amazon Linux | 2 | aarch64 | mod_md | < 2.4.48-2.amzn2 | mod_md-2.4.48-2.amzn2.aarch64.rpm |
Amazon Linux | 2 | aarch64 | mod_proxy_html | < 2.4.48-2.amzn2 | mod_proxy_html-2.4.48-2.amzn2.aarch64.rpm |
Amazon Linux | 2 | aarch64 | mod_ldap | < 2.4.48-2.amzn2 | mod_ldap-2.4.48-2.amzn2.aarch64.rpm |
Amazon Linux | 2 | aarch64 | mod_session | < 2.4.48-2.amzn2 | mod_session-2.4.48-2.amzn2.aarch64.rpm |
Amazon Linux | 2 | aarch64 | httpd-debuginfo | < 2.4.48-2.amzn2 | httpd-debuginfo-2.4.48-2.amzn2.aarch64.rpm |
Amazon Linux | 2 | i686 | httpd | < 2.4.48-2.amzn2 | httpd-2.4.48-2.amzn2.i686.rpm |
9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.1 High
AI Score
Confidence
High
7.5 High
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
0.738 High
EPSS
Percentile
98.0%