CVE-2021-41524

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Source
https://cve.org/CVERecord?id=CVE-2021-41524
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-41524.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2021-41524
Aliases
Downstream
Published
2021-10-05T09:15:07.427Z
Modified
2026-07-08T06:03:36.192214157Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

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.

Database specific 
{
    "unresolved_ranges": [
        {
            "extracted_events": [
                {
                    "introduced": "34"
                },
                {
                    "last_affected": "34"
                },
                {
                    "introduced": "35"
                },
                {
                    "last_affected": "35"
                }
            ],
            "source": "CPE_STRING",
            "vendor_product": "fedoraproject:fedora",
            "cpes": [
                "cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*",
                "cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*"
            ]
        },
        {
            "extracted_events": [
                {
                    "introduced": "17.1"
                },
                {
                    "last_affected": "17.1"
                },
                {
                    "introduced": "17.2"
                },
                {
                    "last_affected": "17.2"
                },
                {
                    "introduced": "17.3"
                },
                {
                    "last_affected": "17.3"
                }
            ],
            "source": "CPE_STRING",
            "vendor_product": "oracle:instantis_enterprisetrack",
            "cpes": [
                "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:*:*:*:*:*:*:*"
            ]
        }
    ]
}
References

Affected packages

Git / github.com/apache/httpd

Affected ranges

Type
GIT
Repo
https://github.com/apache/httpd
Events
Introduced
bbacd798d1494b5a99f4e3edab068ccc77b03b7e
Last affected
bbacd798d1494b5a99f4e3edab068ccc77b03b7e
Database specific 
{
    "source": "CPE_STRING",
    "cpe": "cpe:2.3:a:apache:http_server:2.4.49:*:*:*:*:*:*:*",
    "extracted_events": [
        {
            "introduced": "2.4.49"
        },
        {
            "last_affected": "2.4.49"
        }
    ]
}

Affected versions

2.*
2.4.49
candidate-2.*
candidate-2.4.49

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-41524.json"