CVE-2021-41524

CVSS V2 Medium 5 CVSS V3 High 7.5
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.
Overview
  • CVE ID
  • CVE-2021-41524
  • Assigner
  • security@apache.org
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2021-10-05T09:15:07
  • Last Modified Date
  • 2022-10-28T13:51:44
Weakness Enumerations
CWE URL
CWE-476 http://cwe.mitre.org/data/definitions/476.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:apache:http_server:2.4.49:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:oracle:instantis_enterprisetrack:17.1:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:oracle:instantis_enterprisetrack:17.2:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:oracle:instantis_enterprisetrack:17.3:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:netapp:cloud_backup:-:*:*:*:*:*:*:* 1 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:L/Au:N/C:N/I:N/A:P
  • Access Vector
  • NETWORK
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • NONE
  • Availability Impact
  • PARTIAL
  • Base Score
  • 5
  • Severity
  • MEDIUM
  • Exploitability Score
  • 10
  • Impact Score
  • 2.9
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • NONE
  • Availability Impact
  • HIGH
  • Base Score
  • 7.5
  • Base Severity
  • HIGH
  • Exploitability Score
  • 3.9
  • Impact Score
  • 3.6
References
Reference URL Reference Tags
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@lists.fedoraproject.org/message/DSM6UWQICBJ2TU727RENU3HBKEAFLT6T/ Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/EUVJVRJRBW5QVX4OY3NOHZDQ3B3YOTSG/ Mailing List Third Party Advisory
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
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2021-41524
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-41524
History
Created Old Value New Value Data Type Notes
2022-04-04 00:42:02 Added to TrackCVE
2022-12-05 11:47:36 2021-10-05T09:15Z 2021-10-05T09:15:07 CVE Published Date updated
2022-12-05 11:47:36 2022-10-28T13:51:44 CVE Modified Date updated
2022-12-05 11:47:36 Analyzed Vulnerability Status updated
2022-12-05 11:47:40 References updated