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almalinuxAlmaLinuxALSA-2021:2259
HistoryJun 07, 2021 - 10:02 a.m.

Important: nginx:1.18 security update

2021-06-0710:02:53
errata.almalinux.org
50
nginx
web server
proxy
http
protocols
concurrency
performance
low memory usage
security update
cve-2021-23017
unix

CVSS2

6.8

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:P/I:P/A:P

CVSS3

7.7

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

LOW

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L

EPSS

0.389

Percentile

97.3%

JSON

nginx is a web and proxy server supporting HTTP and other protocols, with a focus on high concurrency, performance, and low memory usage.

Security Fix(es):

  • nginx: Off-by-one in ngx_resolver_copy() when labels are followed by a pointer to a root domain name (CVE-2021-23017)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

OSVersionArchitecturePackageVersionFilename
almalinux8noarchnginx-filesystem< 1.18.0-3.module_el8.4.0+2472+f736ed63.1.almanginx-filesystem-1.18.0-3.module_el8.4.0+2472+f736ed63.1.alma.noarch.rpm
almalinux8aarch64nginx-mod-http-perl< 1.18.0-3.module_el8.4.0+2472+f736ed63.1.almanginx-mod-http-perl-1.18.0-3.module_el8.4.0+2472+f736ed63.1.alma.aarch64.rpm
almalinux8noarchnginx-all-modules< 1.18.0-3.module_el8.4.0+2472+f736ed63.1.almanginx-all-modules-1.18.0-3.module_el8.4.0+2472+f736ed63.1.alma.noarch.rpm
almalinux8aarch64nginx-mod-http-xslt-filter< 1.18.0-3.module_el8.4.0+2472+f736ed63.1.almanginx-mod-http-xslt-filter-1.18.0-3.module_el8.4.0+2472+f736ed63.1.alma.aarch64.rpm
almalinux8aarch64nginx-mod-mail< 1.18.0-3.module_el8.4.0+2472+f736ed63.1.almanginx-mod-mail-1.18.0-3.module_el8.4.0+2472+f736ed63.1.alma.aarch64.rpm
almalinux8aarch64nginx-mod-http-image-filter< 1.18.0-3.module_el8.4.0+2472+f736ed63.1.almanginx-mod-http-image-filter-1.18.0-3.module_el8.4.0+2472+f736ed63.1.alma.aarch64.rpm
almalinux8aarch64nginx< 1.18.0-3.module_el8.4.0+2472+f736ed63.1.almanginx-1.18.0-3.module_el8.4.0+2472+f736ed63.1.alma.aarch64.rpm
almalinux8aarch64nginx-mod-stream< 1.18.0-3.module_el8.4.0+2472+f736ed63.1.almanginx-mod-stream-1.18.0-3.module_el8.4.0+2472+f736ed63.1.alma.aarch64.rpm
almalinux8x86_64nginx-mod-stream< 1.18.0-3.module_el8.4.0+2472+f736ed63.1.almanginx-mod-stream-1.18.0-3.module_el8.4.0+2472+f736ed63.1.alma.x86_64.rpm
almalinux8x86_64nginx-mod-http-perl< 1.18.0-3.module_el8.4.0+2472+f736ed63.1.almanginx-mod-http-perl-1.18.0-3.module_el8.4.0+2472+f736ed63.1.alma.x86_64.rpm
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CVSS2

6.8

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:P/I:P/A:P

CVSS3

7.7

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

LOW

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L

EPSS

0.389

Percentile

97.3%

JSON
Related for ALSA-2021:2259
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