Bugzilla – Bug 1191326
VUL-0: CVE-2021-41524: apache2: null pointer dereference in h2 fuzzing
Last modified: 2021-10-05 12:21:45 UTC
moderate: null pointer dereference in h2 fuzzing (CVE-2021-41524)
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.
Acknowledgements: Apache httpd team would like to thank LI ZHI XIN from NSFocus Security Team for reporting this issue.
Reported to security team 2021-09-17
fixed by r1893655 in 2.4.x 2021-09-26
Update 2.4.50 released 2021-10-04
2.4.50 is on its way to Factory.