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nginxNginxNGINX:CVE-2021-23017
HistoryJun 01, 2021 - 1:15 p.m.

1-byte memory overwrite in resolver

2021-06-0113:15:07
mailman.nginx.org
1292
memory overwrite
resolver
medium severity
cve-2021-23017
software vulnerability

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

0.316

Percentile

97.1%

JSON

1-byte memory overwrite in resolver
Severity: medium
CVE-2021-23017
Not vulnerable: 1.21.0+, 1.20.1+
Vulnerable: 0.6.18-1.20.0

Affected configurations

Vulners
Node
f5nginxRange0.6.18–1.20.0
VendorProductVersionCPE
f5nginx*cpe:2.3:a:f5:nginx:*:*:*:*:*:*:*:*

Related

fedora 2
nessus 42
altlinux 1
ibm 7
osv 13
openvas 18
gentoo 1
cloudlinux 2
redos 32
ubuntucve 1
rocky 3
zdt 2
packetstorm 2
redhat 10
broadcom 2
cvelist 1
almalinux 3
veracode 1
githubexploit 4
ubuntu 2
debian 2
archlinux 2
oraclelinux 3
alpinelinux 1
amazon 1
debiancve 1
nvd 1
exploitdb 1
suse 2
hackerone 1
prion 1
cbl_mariner 1
mageia 1
freebsd 1
f5 2
redhatcve 1
cve 1
photon 8
thn 1
malwarebytes 1
oracle 4
fedora
fedora
[SECURITY] Fedora 34 Update: nginx-1.20.1-2.fc34
2021-06-11 01:15:42
[SECURITY] Fedora 33 Update: nginx-1.20.1-2.fc33
2021-06-11 01:19:56
nessus
nessus
openSUSE 15 Security Update : nginx (openSUSE-SU-2021:1815-1)
2021-07-16 00:00:00
nginx 0.6.x < 1.20.1 1-Byte Memory Overwrite RCE
2021-06-03 00:00:00
SUSE SLES15 Security Update : nginx (SUSE-SU-2021:1815-1)
2021-06-01 00:00:00
altlinux
altlinux
Security fix for the ALT Linux 9 package nginx version 1.20.1-alt1
2021-06-23 00:00:00
ibm
ibm
Security Bulletin: IBM API Connect V5 is impacted by a vulnerability in nginx. (CVE-2021-23017)
2021-08-25 13:37:28
Security Bulletin: IBM Watson Discovery for IBM Cloud Pak for Data affected by vulnerability in Nginx
2021-10-01 06:18:54
Security Bulletin: nginx is vulnerable to CVE-2021-23017 used in IBM Maximo Application Suite - Edge Data Collector Component
2024-03-01 16:12:25
osv
osv
nginx - security update
2021-05-30 00:00:00
nginx vulnerability
2021-05-26 13:50:49
Important: nginx:1.20 security update
2022-01-31 09:52:06
openvas
openvas
Fedora: Security Advisory for nginx (FEDORA-2021-393d698493)
2021-06-17 00:00:00
SUSE: Security Advisory (SUSE-SU-2021:1814-1)
2021-06-09 00:00:00
openSUSE: Security Advisory for nginx (openSUSE-SU-2021:0835-1)
2021-06-04 00:00:00
gentoo
gentoo
nginx: Remote code execution
2021-05-26 00:00:00
cloudlinux
cloudlinux
Fix of CVE: CVE-2021-23017
2021-09-21 22:02:21
Fix of CVE: CVE-2021-23017
2021-09-21 22:02:42
redos
redos
ROS-2-1303
2021-09-08 00:00:00
ROS-2-1251
2021-12-24 00:00:00
ROS-2-1005
2021-09-08 00:00:00
ubuntucve
ubuntucve
CVE-2021-23017
2021-05-25 00:00:00
rocky
rocky
nginx:1.18 security update
2021-06-07 10:02:53
nginx:1.16 security update
2021-06-08 09:47:28
nginx:1.20 security update
2022-01-31 09:52:06
zdt
zdt
nginx 1.20.0 DNS Resolver Off-By-One Heap Write Exploit
2021-05-27 00:00:00
Nginx 1.20.0 - Denial of Service Exploit
2022-07-11 00:00:00
packetstorm
packetstorm
nginx 1.20.0 DNS Resolver Off-By-One Heap Write
2021-05-26 00:00:00
Nginx 1.20.0 Denial Of Service
2022-07-11 00:00:00
redhat
redhat
(RHSA-2021:2278) Important: rh-nginx116-nginx security update
2021-06-07 17:17:53
(RHSA-2022:0323) Important: nginx:1.20 security update
2022-01-31 09:52:06
(RHSA-2021:2259) Important: nginx:1.18 security update
2021-06-07 10:02:53
broadcom
broadcom
CVE-2021-23017: NGINX Resolver Vulnerability
2022-11-08 00:00:00
CVE-2021-23017: NGINX Resolver Vulnerability
2022-11-08 00:00:00
cvelist
cvelist
CVE-2021-23017
2021-06-01 12:28:09
almalinux
almalinux
Important: nginx:1.18 security update
2021-06-07 10:02:53
Important: nginx:1.16 security update
2021-06-08 09:47:28
Important: nginx:1.20 security update
2022-01-31 09:52:06
veracode
veracode
Remote Code Execution
2021-05-28 13:25:37
githubexploit
githubexploit
Exploit for Off-by-one Error in F5 Nginx
2022-06-30 04:39:58
Exploit for Off-by-one Error in F5 Nginx
2023-10-21 04:24:02
Exploit for Off-by-one Error in F5 Nginx
2023-07-20 05:39:01
ubuntu
ubuntu
nginx vulnerability
2021-05-27 00:00:00
nginx vulnerability
2021-05-26 00:00:00
debian
debian
[SECURITY] [DSA 4921-1] nginx security update
2021-05-28 12:05:07
[SECURITY] [DLA 2670-1] nginx security update
2021-05-30 12:56:20
archlinux
archlinux
[ASA-202106-36] nginx: arbitrary code execution
2021-06-15 00:00:00
[ASA-202106-48] nginx-mainline: arbitrary code execution
2021-06-22 00:00:00
oraclelinux
oraclelinux
nginx:1.20 security update
2022-02-01 00:00:00
nginx:1.18 security update
2021-06-08 00:00:00
nginx:1.16 security update
2021-06-10 00:00:00
alpinelinux
alpinelinux
CVE-2021-23017
2021-06-01 13:15:07
amazon
amazon
Important: nginx
2021-06-01 17:58:00
debiancve
debiancve
CVE-2021-23017
2021-06-01 13:15:07
nvd
nvd
CVE-2021-23017
2021-06-01 13:15:07
exploitdb
exploitdb
Nginx 1.20.0 - Denial of Service (DOS)
2022-07-11 00:00:00
suse
suse
Security update for nginx (important)
2021-06-04 00:00:00
Security update for nginx (important)
2021-07-11 00:00:00
hackerone
hackerone
Internet Bug Bounty: 1-byte heap buffer overflow in DNS resolver
2021-05-27 10:32:41
prion
prion
Memory corruption
2021-06-01 13:15:00
cbl_mariner
cbl_mariner
CVE-2021-23017 affecting package nginx 1.16.1-4
2021-06-14 15:32:58
mageia
mageia
Updated nginx package fixes a security vulnerability
2021-06-29 20:31:40
freebsd
freebsd
NGINX -- 1-byte memory overwrite in resolver
2021-05-25 00:00:00
f5
f5
K12331123 : NGINX Plus and Open Source vulnerability CVE-2021-23017
2021-05-25 00:00:00
K52559937 : Overview of NGINX vulnerabilities (May 2021)
2021-05-25 00:00:00
redhatcve
redhatcve
CVE-2021-23017
2021-05-26 08:17:46
cve
cve
CVE-2021-23017
2021-06-01 13:15:07
photon
photon
Home Download Photon OS User Documentation FAQ Security Advisories Related Information Lightwave - PHSA-2021-1.0-0394
2021-05-27 00:00:00
Important Photon OS Security Update - PHSA-2021-0394
2021-05-27 00:00:00
Important Photon OS Security Update - PHSA-2021-0032
2021-05-26 00:00:00
thn
thn
Juniper Releases Patches for Critical Flaws in Junos OS and Contrail Networking
2022-07-18 05:02:00
malwarebytes
malwarebytes
Oracle releases massive Critical Patch Update containing 520 security patches
2022-04-20 14:53:54
oracle
oracle
Oracle Critical Patch Update Advisory - January 2022
2022-01-18 00:00:00
Oracle Critical Patch Update Advisory - October 2021
2021-10-19 00:00:00
Oracle Critical Patch Update Advisory - April 2023
2023-04-18 00:00:00

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

0.316

Percentile

97.1%

JSON
Related for NGINX:CVE-2021-23017
fedora2nessus42altlinux1ibm7osv13openvas18gentoo1cloudlinux2redos32ubuntucve1rocky3zdt2packetstorm2redhat10broadcom2cvelist1almalinux3veracode1githubexploit4ubuntu2debian2archlinux2oraclelinux3alpinelinux1amazon1debiancve1nvd1exploitdb1suse2hackerone1prion1cbl_mariner1mageia1freebsd1f52redhatcve1cve1photon8thn1malwarebytes1oracle4