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redhatcveRedhat.comRH:CVE-2021-34798
HistorySep 16, 2021 - 9:57 p.m.

CVE-2021-34798

2021-09-1621:57:58
redhat.com
access.redhat.com
77

5 Medium

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

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

0.005 Low

EPSS

Percentile

77.5%

JSON

A NULL pointer dereference in httpd allows an unauthenticated remote attacker to crash httpd by providing malformed HTTP requests. The highest threat from this vulnerability is to system availability.

Mitigation

Red Hat has investigated whether a possible mitigation exists for this issue, and has not been able to identify a practical example.

Related

osv 10
cvelist 1
debiancve 1
veracode 1
f5 1
cve 1
cnvd 1
nvd 1
prion 1
ibm 15
alpinelinux 1
cbl_mariner 2
ubuntucve 1
httpd 1
nessus 55
oraclelinux 4
rocky 1
almalinux 1
redhat 5
openvas 34
ubuntu 4
debian 2
ics 2
photon 5
suse 2
centos 1
altlinux 2
slackware 1
mageia 1
freebsd 1
cisco 1
kaspersky 1
rosalinux 2
amazon 2
fedora 2
gentoo 1
oracle 4
osv
osv
CVE-2021-34798
2021-09-16 15:15:07
BIT-apache-2021-34798
2024-03-06 10:55:30
Moderate: httpd:2.4 security update
2022-03-15 09:10:44
cvelist
cvelist
CVE-2021-34798 NULL pointer dereference in httpd core
2021-09-16 14:40:17
debiancve
debiancve
CVE-2021-34798
2021-09-16 15:15:07
veracode
veracode
Denial Of Service (DoS)
2021-09-19 21:02:16
f5
f5
K72382141 : Apache HTTPD vulnerability CVE-2021-34798
2021-10-13 00:00:00
cve
cve
CVE-2021-34798
2021-09-16 15:15:07
cnvd
cnvd
Apache HTTP Server code issue vulnerability
2021-09-22 00:00:00
nvd
nvd
CVE-2021-34798
2021-09-16 15:15:07
prion
prion
Null pointer dereference
2021-09-16 15:15:00
ibm
ibm
Security Bulletin: IBM Rational Build Forge 8.0.x is affected by Apache HTTP Server version used in it. (CVE-2021-34798)
2022-01-17 17:46:22
Security Bulletin: IBM Aspera Orchestrator was vulnerable to denial of service due to an Apache HTTP Server vulnerability (CVE-2021-34798)
2023-02-02 17:40:12
Security Bulletin: IBM Aspera Console 3.4.2 PL7 has addressed multiple vulnerabilities (CVE-2022-37436, CVE-2021-34798)
2024-02-23 17:45:37
alpinelinux
alpinelinux
CVE-2021-34798
2021-09-16 15:15:07
cbl_mariner
cbl_mariner
CVE-2021-34798 affecting package httpd 2.4.46-6
2021-10-15 04:46:31
CVE-2021-34798 affecting package httpd for versions less than 2.4.52-1
2022-04-09 06:51:57
ubuntucve
ubuntucve
CVE-2021-34798
2021-09-16 00:00:00
httpd
httpd
Apache Httpd < 2.4.49 : NULL pointer dereference in httpd core
2021-09-16 00:00:00
nessus
nessus
F5 Networks BIG-IP : Apache HTTPD vulnerability (K72382141)
2021-10-28 00:00:00
Oracle Linux 8 : httpd:2.4 (ELSA-2022-9005)
2022-01-05 00:00:00
Oracle Linux 8 : httpd:2.4 (ELSA-2022-0891)
2022-03-16 00:00:00
oraclelinux
oraclelinux
httpd:2.4 security update
2022-03-16 00:00:00
httpd security update
2021-12-16 00:00:00
httpd:2.4 security update
2022-01-06 00:00:00
rocky
rocky
httpd:2.4 security update
2022-03-15 09:10:44
almalinux
almalinux
Moderate: httpd:2.4 security update
2022-03-15 09:10:44
redhat
redhat
(RHSA-2022:0891) Moderate: httpd:2.4 security update
2022-03-15 09:10:44
(RHSA-2022:0143) Important: httpd security update
2022-01-17 08:16:34
(RHSA-2021:4613) Moderate: Red Hat JBoss Core Services Apache HTTP Server 2.4.37 SP10 security update
2021-11-10 17:09:50
openvas
openvas
Ubuntu: Security Advisory (USN-5090-2)
2022-08-26 00:00:00
Apache HTTP Server < 2.4.49 Multiple Vulnerabilities - Linux
2021-09-17 00:00:00
Apache HTTP Server < 2.4.49 Multiple Vulnerabilities - Windows
2021-09-17 00:00:00
ubuntu
ubuntu
Apache HTTP Server vulnerabilities
2021-09-27 00:00:00
Apache HTTP Server regression
2021-09-28 00:00:00
Apache HTTP Server regression
2021-09-28 00:00:00
debian
debian
[SECURITY] [DLA 2776-1] apache2 security update
2021-10-02 16:07:56
[SECURITY] [DSA 4982-1] apache2 security update
2021-10-08 20:56:04
ics
ics
Siemens Apache HTTP Server (Update A)
2022-10-13 12:00:00
Mitsubishi Electric MELSOFT iQ AppPortal
2022-05-12 12:00:00
photon
photon
Critical Photon OS Security Update - PHSA-2021-0309
2021-10-01 00:00:00
Home Download Photon OS User Documentation FAQ Security Advisories Related Information Lightwave - PHSA-2021-1.0-0437
2021-10-01 00:00:00
Home Download Photon OS User Documentation FAQ Security Advisories Related Information Lightwave - PHSA-2021-2.0-0399
2021-10-01 00:00:00
suse
suse
Security update for apache2 (important)
2021-10-26 00:00:00
Security update for apache2 (important)
2021-11-02 00:00:00
centos
centos
httpd, mod_ldap, mod_proxy_html, mod_session, mod_ssl security update
2022-01-25 17:31:14
altlinux
altlinux
Security fix for the ALT Linux 9 package apache2 version 1:2.4.49-alt1
2021-09-23 00:00:00
Security fix for the ALT Linux 10 package apache2 version 1:2.4.49-alt1
2021-10-04 00:00:00
slackware
slackware
[slackware-security] httpd
2021-09-17 04:22:20
mageia
mageia
Updated apache packages fix security vulnerability
2021-09-23 07:49:29
freebsd
freebsd
Apache httpd -- multiple vulnerabilities
2021-09-16 00:00:00
cisco
cisco
Multiple Vulnerabilities in Apache HTTP Server Affecting Cisco Products: November 2021
2021-11-24 16:00:00
kaspersky
kaspersky
KLA12370 Multiple vulnerabilities in Apache HTTP Server
2021-09-16 00:00:00
rosalinux
rosalinux
Advisory ROSA-SA-2023-2158
2023-04-25 11:30:17
Advisory ROSA-SA-2023-2159
2023-04-25 11:49:15
amazon
amazon
Important: httpd24
2021-10-15 07:52:00
Important: httpd
2021-10-15 07:57:00
fedora
fedora
[SECURITY] Fedora 34 Update: httpd-2.4.49-1.fc34
2021-09-20 13:58:04
[SECURITY] Fedora 35 Update: httpd-2.4.49-1.fc35
2021-09-24 20:56:12
gentoo
gentoo
Apache HTTPD: Multiple Vulnerabilities
2022-08-14 00:00:00
oracle
oracle
Oracle Critical Patch Update Advisory - October 2022
2022-10-18 00:00:00
Oracle Critical Patch Update Advisory - January 2022
2022-01-18 00:00:00
Oracle Critical Patch Update Advisory - April 2023
2023-04-18 00:00:00

5 Medium

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

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

0.005 Low

EPSS

Percentile

77.5%

JSON
Related for RH:CVE-2021-34798
osv10cvelist1debiancve1veracode1f51cve1cnvd1nvd1prion1ibm15alpinelinux1cbl_mariner2ubuntucve1httpd1nessus55oraclelinux4rocky1almalinux1redhat5openvas34ubuntu4debian2ics2photon5suse2centos1altlinux2slackware1mageia1freebsd1cisco1kaspersky1rosalinux2amazon2fedora2gentoo1oracle4