Vulnerability Details : CVE-2021-34798
Malformed requests may cause the server to dereference a NULL pointer. This issue affects Apache HTTP Server 2.4.48 and earlier.
Exploit prediction scoring system (EPSS) score for CVE-2021-34798
Probability of exploitation activity in the next 30 days: 1.72%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 86 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2021-34798
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|
|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:N/A:P |
10.0
|
2.9
|
[email protected] |
|
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
[email protected] |
CWE ids for CVE-2021-34798
-
A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit.Assigned by:
- [email protected] (Primary)
- [email protected] (Secondary)
References for CVE-2021-34798
-
https://www.oracle.com/security-alerts/cpuapr2022.html
Patch;Third Party Advisory
-
https://www.oracle.com/security-alerts/cpujan2022.html
Patch;Third Party Advisory
-
https://lists.debian.org/debian-lts-announce/2021/10/msg00001.html
Mailing List;Third Party Advisory
-
https://lists.apache.org/thread.html/r3925e167d5eb1c75def3750c155d753064e1d34a143028bb32910432@%3Cusers.httpd.apache.org%3E
Mailing List;Vendor Advisory
-
https://lists.apache.org/thread.html/r82c077663f9759c7df5a6656f925b3ee4f55fcd33c889ba7cd687029@%3Cusers.httpd.apache.org%3E
Mailing List;Vendor Advisory
-
https://lists.apache.org/thread.html/r61fdbfc26ab170f4e6492ef3bd5197c20b862ce156e9d5a54d4b899c@%3Cusers.httpd.apache.org%3E
Mailing List;Vendor Advisory
-
https://security.gentoo.org/glsa/202208-20
Third Party Advisory
-
https://security.netapp.com/advisory/ntap-20211008-0004/
Third Party Advisory
-
https://lists.apache.org/thread.html/r82838efc5fa6fc4c73986399c9b71573589f78b31846aff5bd9b1697@%3Cusers.httpd.apache.org%3E
Mailing List;Vendor Advisory
-
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-apache-httpd-2.4.49-VWL69sWQ
Third Party Advisory
-
https://www.debian.org/security/2021/dsa-4982
Third Party Advisory
-
https://lists.fedoraproject.org/archives/list/[email protected]/message/ZNCYSR3BXT36FFF4XTCPL3HDQK4VP45R/
Mailing List;Third Party Advisory
-
https://www.tenable.com/security/tns-2021-17
Third Party Advisory
-
https://kc.mcafee.com/corporate/index?page=content&id=SB10379
Third Party Advisory
-
http://httpd.apache.org/security/vulnerabilities_24.html
Release Notes;Vendor Advisory
-
https://lists.fedoraproject.org/archives/list/[email protected]/message/SPBR6WUYBJNACHKE65SPL7TJOHX7RHWD/
Mailing List;Third Party Advisory
-
https://cert-portal.siemens.com/productcert/pdf/ssa-685781.pdf
Patch;Third Party Advisory
Products affected by CVE-2021-34798
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:http_server:12.2.1.3.0:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:http_server:12.2.1.4.0:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:peoplesoft_enterprise_peopletools:8.58:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:enterprise_manager_base_platform:13.4.0.0:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:enterprise_manager_base_platform:13.5.0.0:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:instantis_enterprisetrack:17.1:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:instantis_enterprisetrack:17.2:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:instantis_enterprisetrack:17.3:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:zfs_storage_appliance_kit:8.8:*:*:*:*:*:*:*
- Oracle » Communications Cloud Native Core Network Function Cloud Native Environment » Version: 1.10.0cpe:2.3:a:oracle:communications_cloud_native_core_network_function_cloud_native_environment:1.10.0:*:*:*:*:*:*:*
- cpe:2.3:a:siemens:sinema_server:14.0:-:*:*:*:*:*:*
- cpe:2.3:a:siemens:sinema_remote_connect_server:*:*:*:*:*:*:*:*
- cpe:2.3:a:siemens:sinec_nms:*:*:*:*:*:*:*:*
- cpe:2.3:a:siemens:ruggedcom_nms:*:*:*:*:*:*:*:*
- cpe:2.3:o:broadcom:brocade_fabric_operating_system_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
- cpe:2.3:a:netapp:clustered_data_ontap:-:*:*:*:*:*:*:*
- cpe:2.3:a:netapp:cloud_backup:-:*:*:*:*:*:*:*
- cpe:2.3:a:netapp:storagegrid:-:*:*:*:*:*:*:*
- cpe:2.3:a:tenable:tenable.sc:*:*:*:*:*:*:*:*