Amazon Linux AMI update for httpd24



Published: 2023-11-04
Risk Medium
Patch available YES
Number of vulnerabilities 3
CVE-ID CVE-2023-31122
CVE-2023-43622
CVE-2023-45802
CWE-ID CWE-125
CWE-399
Exploitation vector Network
Public exploit N/A
Vulnerable software
Subscribe 		Amazon Linux AMI
Operating systems & Components / Operating system

httpd24
Operating systems & Components / Operating system package or component

Vendor Amazon Web Services

Security Bulletin

This security bulletin contains information about 3 vulnerabilities.

1) Out-of-bounds read

EUVDB-ID: #VU82248

Risk: Medium

CVSSv3.1: 5.2 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-31122

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary condition within mod_macro module. A remote attacker can send specially crafted requests to the server, trigger an out-of-bounds read error and perform a denial of service (DoS) attack.

Mitigation

Update the affected packages:

i686:
    mod24_session-2.4.58-1.101.amzn1.i686
    httpd24-debuginfo-2.4.58-1.101.amzn1.i686
    mod24_proxy_html-2.4.58-1.101.amzn1.i686
    mod24_ssl-2.4.58-1.101.amzn1.i686
    httpd24-2.4.58-1.101.amzn1.i686
    httpd24-devel-2.4.58-1.101.amzn1.i686
    mod24_md-2.4.58-1.101.amzn1.i686
    httpd24-tools-2.4.58-1.101.amzn1.i686
    mod24_ldap-2.4.58-1.101.amzn1.i686

noarch:
    httpd24-manual-2.4.58-1.101.amzn1.noarch

src:
    httpd24-2.4.58-1.101.amzn1.src

x86_64:
    mod24_ssl-2.4.58-1.101.amzn1.x86_64
    httpd24-2.4.58-1.101.amzn1.x86_64
    mod24_ldap-2.4.58-1.101.amzn1.x86_64
    mod24_md-2.4.58-1.101.amzn1.x86_64
    mod24_session-2.4.58-1.101.amzn1.x86_64
    mod24_proxy_html-2.4.58-1.101.amzn1.x86_64
    httpd24-debuginfo-2.4.58-1.101.amzn1.x86_64
    httpd24-tools-2.4.58-1.101.amzn1.x86_64
    httpd24-devel-2.4.58-1.101.amzn1.x86_64

Vulnerable software versions

Amazon Linux AMI: All versions

httpd24: before 2.4.58-1.101

External links

http://alas.aws.amazon.com/ALAS-2023-1877.html


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Resource management error

EUVDB-ID: #VU82247

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-43622

CWE-ID: CWE-399 - Resource Management Errors

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to improper management of internal resources within the server when processing HTTP/2 connections with window size of 0. A remote attacker can exhaust available workers on the server and perform a denial of service (DoS) attack.

Mitigation

Update the affected packages:

i686:
    mod24_session-2.4.58-1.101.amzn1.i686
    httpd24-debuginfo-2.4.58-1.101.amzn1.i686
    mod24_proxy_html-2.4.58-1.101.amzn1.i686
    mod24_ssl-2.4.58-1.101.amzn1.i686
    httpd24-2.4.58-1.101.amzn1.i686
    httpd24-devel-2.4.58-1.101.amzn1.i686
    mod24_md-2.4.58-1.101.amzn1.i686
    httpd24-tools-2.4.58-1.101.amzn1.i686
    mod24_ldap-2.4.58-1.101.amzn1.i686

noarch:
    httpd24-manual-2.4.58-1.101.amzn1.noarch

src:
    httpd24-2.4.58-1.101.amzn1.src

x86_64:
    mod24_ssl-2.4.58-1.101.amzn1.x86_64
    httpd24-2.4.58-1.101.amzn1.x86_64
    mod24_ldap-2.4.58-1.101.amzn1.x86_64
    mod24_md-2.4.58-1.101.amzn1.x86_64
    mod24_session-2.4.58-1.101.amzn1.x86_64
    mod24_proxy_html-2.4.58-1.101.amzn1.x86_64
    httpd24-debuginfo-2.4.58-1.101.amzn1.x86_64
    httpd24-tools-2.4.58-1.101.amzn1.x86_64
    httpd24-devel-2.4.58-1.101.amzn1.x86_64

Vulnerable software versions

Amazon Linux AMI: All versions

httpd24: before 2.4.58-1.101

External links

http://alas.aws.amazon.com/ALAS-2023-1877.html


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

3) Resource management error

EUVDB-ID: #VU82245

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-45802

CWE-ID: CWE-399 - Resource Management Errors

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to improper management of internal resources within the server when handling HTTP/2 requests. A remote attacker can send multiple requests to the server and perform a denial of service (DoS) attack.

Mitigation

Update the affected packages:

i686:
    mod24_session-2.4.58-1.101.amzn1.i686
    httpd24-debuginfo-2.4.58-1.101.amzn1.i686
    mod24_proxy_html-2.4.58-1.101.amzn1.i686
    mod24_ssl-2.4.58-1.101.amzn1.i686
    httpd24-2.4.58-1.101.amzn1.i686
    httpd24-devel-2.4.58-1.101.amzn1.i686
    mod24_md-2.4.58-1.101.amzn1.i686
    httpd24-tools-2.4.58-1.101.amzn1.i686
    mod24_ldap-2.4.58-1.101.amzn1.i686

noarch:
    httpd24-manual-2.4.58-1.101.amzn1.noarch

src:
    httpd24-2.4.58-1.101.amzn1.src

x86_64:
    mod24_ssl-2.4.58-1.101.amzn1.x86_64
    httpd24-2.4.58-1.101.amzn1.x86_64
    mod24_ldap-2.4.58-1.101.amzn1.x86_64
    mod24_md-2.4.58-1.101.amzn1.x86_64
    mod24_session-2.4.58-1.101.amzn1.x86_64
    mod24_proxy_html-2.4.58-1.101.amzn1.x86_64
    httpd24-debuginfo-2.4.58-1.101.amzn1.x86_64
    httpd24-tools-2.4.58-1.101.amzn1.x86_64
    httpd24-devel-2.4.58-1.101.amzn1.x86_64

Vulnerable software versions

Amazon Linux AMI: All versions

httpd24: before 2.4.58-1.101

External links

http://alas.aws.amazon.com/ALAS-2023-1877.html


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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