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[email protected]CVE-2021-41524

HistoryOct 05, 2021 - 9:15 a.m.

CVE-2021-41524

2021-10-0509:15:07

CWE-476

[email protected]

web.nvd.nist.gov

288

cve

2021

41524

null pointer dereference

2.4.49

httpd

dos

http/2

vulnerability

nvd

5 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:N/I:N/A:P

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

7.3 High

AI Score

Confidence

High

0.006 Low

EPSS

Percentile

78.8%

JSON

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

Vulners

NVD

Node

apacheapache_http_serverRange≤2.4.49

CPENameOperatorVersion
apache:http_serverapache http servereq2.4.49

CPE	Name	Operator	Version
apache:http_server	apache http server	eq	2.4.49

CNA Affected

[
  {
    "product": "Apache HTTP Server",
    "vendor": "Apache Software Foundation",
    "versions": [
      {
        "status": "affected",
        "version": "2.4.49"
      }
    ]
  }
]