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httpdApache Team FoundationHTTPD:9BD7C7441A852DCB472C001D2290429F
HistoryOct 04, 2021 - 12:00 a.m.

Apache Httpd < 2.4.50 : null pointer dereference in h2 fuzzing

2021-10-0400:00:00
Apache Team Foundation
httpd.apache.org
37

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

5 Medium

CVSS2

Access Vector

NETWORK

Access 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

0.006 Low

EPSS

Percentile

77.9%

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.

CPENameOperatorVersion
apache httpdeq2.4.49

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

5 Medium

CVSS2

Access Vector

NETWORK

Access 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

0.006 Low

EPSS

Percentile

77.9%

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