Vulnerabilities
Misconfiguration
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CVE Vulnerabilities

CVE-2021-34798

NULL Pointer Dereference

Published: Sep 16, 2021 | Modified: Nov 21, 2024
CVSS 3.x
7.5
HIGH
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.x
5 MEDIUM
AV:N/AC:L/Au:N/C:N/I:N/A:P
RedHat/V2
RedHat/V3
7.5 MODERATE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Ubuntu
MEDIUM
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Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2021-34798
CWEhttps://cwe.mitre.org/data/definitions/476.html

Malformed requests may cause the server to dereference a NULL pointer. This issue affects Apache HTTP Server 2.4.48 and earlier.

Weakness

The product dereferences a pointer that it expects to be valid but is NULL.

Affected Software

NameVendorStart VersionEnd Version
Http_serverApache*2.4.48 (including)
JBoss Core Services for RHEL 8RedHatjbcs-httpd24-apr-0:1.6.3-107.el8jbcs*
JBoss Core Services for RHEL 8RedHatjbcs-httpd24-apr-util-0:1.6.1-84.el8jbcs*
JBoss Core Services for RHEL 8RedHatjbcs-httpd24-curl-0:7.78.0-2.el8jbcs*
JBoss Core Services for RHEL 8RedHatjbcs-httpd24-httpd-0:2.4.37-78.el8jbcs*
JBoss Core Services for RHEL 8RedHatjbcs-httpd24-mod_cluster-native-0:1.3.16-9.Final_redhat_2.el8jbcs*
JBoss Core Services for RHEL 8RedHatjbcs-httpd24-mod_http2-0:1.15.7-21.el8jbcs*
JBoss Core Services for RHEL 8RedHatjbcs-httpd24-mod_jk-0:1.2.48-20.redhat_1.el8jbcs*
JBoss Core Services for RHEL 8RedHatjbcs-httpd24-mod_md-1:2.0.8-40.el8jbcs*
JBoss Core Services for RHEL 8RedHatjbcs-httpd24-mod_security-0:2.9.2-67.GA.el8jbcs*
JBoss Core Services for RHEL 8RedHatjbcs-httpd24-nghttp2-0:1.39.2-39.el8jbcs*
JBoss Core Services for RHEL 8RedHatjbcs-httpd24-openssl-1:1.1.1g-8.el8jbcs*
JBoss Core Services for RHEL 8RedHatjbcs-httpd24-openssl-chil-0:1.0.0-7.el8jbcs*
JBoss Core Services for RHEL 8RedHatjbcs-httpd24-openssl-pkcs11-0:0.4.10-22.el8jbcs*
JBoss Core Services on RHEL 7RedHatjbcs-httpd24-apr-0:1.6.3-107.jbcs.el7*
JBoss Core Services on RHEL 7RedHatjbcs-httpd24-apr-util-0:1.6.1-84.jbcs.el7*
JBoss Core Services on RHEL 7RedHatjbcs-httpd24-curl-0:7.78.0-2.jbcs.el7*
JBoss Core Services on RHEL 7RedHatjbcs-httpd24-httpd-0:2.4.37-78.jbcs.el7*
JBoss Core Services on RHEL 7RedHatjbcs-httpd24-mod_cluster-native-0:1.3.16-9.Final_redhat_2.jbcs.el7*
JBoss Core Services on RHEL 7RedHatjbcs-httpd24-mod_http2-0:1.15.7-21.jbcs.el7*
JBoss Core Services on RHEL 7RedHatjbcs-httpd24-mod_jk-0:1.2.48-20.redhat_1.jbcs.el7*
JBoss Core Services on RHEL 7RedHatjbcs-httpd24-mod_md-1:2.0.8-40.jbcs.el7*
JBoss Core Services on RHEL 7RedHatjbcs-httpd24-mod_security-0:2.9.2-67.GA.jbcs.el7*
JBoss Core Services on RHEL 7RedHatjbcs-httpd24-nghttp2-0:1.39.2-39.jbcs.el7*
JBoss Core Services on RHEL 7RedHatjbcs-httpd24-openssl-1:1.1.1g-8.jbcs.el7*
JBoss Core Services on RHEL 7RedHatjbcs-httpd24-openssl-chil-0:1.0.0-7.jbcs.el7*
JBoss Core Services on RHEL 7RedHatjbcs-httpd24-openssl-pkcs11-0:0.4.10-22.jbcs.el7*
Red Hat Enterprise Linux 7RedHathttpd-0:2.4.6-97.el7_9.4*
Red Hat Enterprise Linux 8RedHathttpd:2.4-8050020220228164203.c5368500*
Red Hat Software Collections for Red Hat Enterprise Linux 7RedHathttpd24-httpd-0:2.4.34-23.el7.5*
Text-Only JBCSRedHat*
Apache2Ubuntubionic*
Apache2Ubuntudevel*
Apache2Ubuntuesm-infra-legacy/trusty*
Apache2Ubuntuesm-infra/bionic*
Apache2Ubuntuesm-infra/focal*
Apache2Ubuntuesm-infra/xenial*
Apache2Ubuntufocal*
Apache2Ubuntuhirsute*
Apache2Ubuntuimpish*
Apache2Ubuntujammy*
Apache2Ubuntutrusty*
Apache2Ubuntutrusty/esm*
Apache2Ubuntuupstream*
Apache2Ubuntuxenial*

Potential Mitigations

References

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