CVEvulnerability
CVE-2021-41524
7.5 HIGH
Official page ↗
- Status
- Modified
- Published
- 2021-10-05
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- CVSS 2.0 ([email protected])
- 5.0 MEDIUM — AV:N/AC:L/Au:N/C:N/I:N/A:P
- Weaknesses
- CWE-476
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.
Affected configurations
• apache http server 2.4.49
• fedoraproject fedora 34
• fedoraproject fedora 35
• oracle instantis enterprisetrack 17.1
• oracle instantis enterprisetrack 17.2
• oracle instantis enterprisetrack 17.3
• netapp cloud backup
Related
Weakness · CWE (1)
- CWE-476 NULL Pointer Dereference weakness
References
- http://www.openwall.com/lists/oss-security/2021/10/05/1 Mailing List, Third Party Advisory
- https://httpd.apache.org/security/vulnerabilities_24.html Vendor Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DSM6UWQICBJ2TU727RENU3HBKEAFLT6T/ lists.fedoraproject.org
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EUVJVRJRBW5QVX4OY3NOHZDQ3B3YOTSG/ lists.fedoraproject.org
- https://security.gentoo.org/glsa/202208-20 Third Party Advisory
- https://security.netapp.com/advisory/ntap-20211029-0009/ Third Party Advisory
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-apache-httpd-pathtrv-LAzg68cZ Third Party Advisory
- https://www.oracle.com/security-alerts/cpujan2022.html Patch, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2021/10/05/1 Mailing List, Third Party Advisory
- https://httpd.apache.org/security/vulnerabilities_24.html Vendor Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DSM6UWQICBJ2TU727RENU3HBKEAFLT6T/ lists.fedoraproject.org
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EUVJVRJRBW5QVX4OY3NOHZDQ3B3YOTSG/ lists.fedoraproject.org
- https://security.gentoo.org/glsa/202208-20 Third Party Advisory
- https://security.netapp.com/advisory/ntap-20211029-0009/ Third Party Advisory
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-apache-httpd-pathtrv-LAzg68cZ Third Party Advisory
- https://www.oracle.com/security-alerts/cpujan2022.html Patch, Third Party Advisory