CVE-2021-41524: Apache HTTP Server: null pointer dereference in h2 fuzzing

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Severity: moderate

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.

Mitigation:

Disable the HTTP/2 protocol.

Credit:

Apache httpd team would like to thank LI ZHI XIN from NSFocus Security Team for reporting this issue.

References:

https://httpd.apache.org/security/vulnerabilities_24.html


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