CVE-2021-41524

HIGH 7.5CVE-2021-41524 · Published 05/10/2021 · updated 17/06/2026

Package	Affected versions	Patched versions
http server apache	`= 2.4.49`	No fix yet
instantis enterprisetrack oracle	`= 17.1= 17.2= 17.3`	No fix yet

Description

While fuzzing the 2.4.49 httpd, a new null pointer dereference was detected during HTTP/2 request processing, allowing an external source to DoS the server. This requires a specially crafted request. The vulnerability was recently introduced in version 2.4.49. No exploit is known to the project.

References

openwall.com/lists/oss-security/2021/10/05/1 · Mailing List
httpd.apache.org/security/vulnerabilities_24.html · Vendor Advisory
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DSM6UWQICBJ2TU727RENU3HBKEAFLT6T
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EUVJVRJRBW5QVX4OY3NOHZDQ3B3YOTSG
security.gentoo.org/glsa/202208-20 · Third Party Advisory
security.netapp.com/advisory/ntap-20211029-0009 · Third Party Advisory
tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-apache-httpd-pathtrv-LAzg68cZ · Third Party Advisory
oracle.com/security-alerts/cpujan2022.html · Patch

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