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kasperskyKaspersky LabKLA61504
HistoryOct 19, 2023 - 12:00 a.m.

KLA61504 Multiple vulnerabilities in Apache HTTP Server

2023-10-1900:00:00
Kaspersky Lab
threats.kaspersky.com
4
apache http server
vulnerabilities
dos
2.4.58
update

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 High

AI Score

Confidence

Low

0.01 Low

EPSS

Percentile

83.8%

Multiple vulnerabilities were found in Apache HTTP Server. Malicious users can exploit these vulnerabilities to cause denial of service.

Below is a complete list of vulnerabilities:

  1. Out of memory crash vulnerability in HTTP/2 stream memory can be exploited to cause denial of service
  2. Out of bounds read vulnerability in mod_macro can be exploited to cause denial of service.
  3. Denial of service vulnerability in HTTP/2 can be exploited to cause denial of service.

Original advisories

Fixed in Apache HTTP Server 2.4.58

Exploitation

Public exploits exist for this vulnerability.

Related products

Apache-HTTP-Server

CVE list

CVE-2023-45802 high

CVE-2023-31122 critical

CVE-2023-43622 critical

Solution

Update to the latest version

Download Apache HTTP Server

Impacts

  • DoS

Denial of service. Exploitation of vulnerabilities with this impact can lead to loss of system availability or critical functional fault.

  • SB

Security bypass. Exploitation of vulnerabilities with this impact can lead to performing actions restricted by current security settings.

Affected Products

  • Apache HTTP Server 2.4.x earlier than 2.4.58

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 High

AI Score

Confidence

Low

0.01 Low

EPSS

Percentile

83.8%