Amazon Linux AMI update for httpd24
| 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 | Public exploit code for vulnerability #2 is available. |
| Vulnerable software |
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
CVSSv4.0: 4.6 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]
CVE-ID: CVE-2023-31122
CWE-ID:
CWE-125 - Out-of-bounds read
Exploit availability: No
DescriptionThe 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.
Update the affected packages:
i686:Vulnerable software versions
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
Amazon Linux AMI: All versions
httpd24: before 2.4.58-1.101
CPE2.3- cpe:2.3:o:amazon_web_services:amazon_linux_ami:*:*:*:*:*:*:*:*
- cpe:2.3:o:amazon_web_services:httpd24:*:*:*:*:*:amazon_linux_ami:*:*
https://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
CVSSv4.0: 7.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P/U:Green]
CVE-ID: CVE-2023-43622
CWE-ID:
CWE-399 - Resource Management Errors
Exploit availability: Yes
DescriptionThe 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.
MitigationUpdate the affected packages:
i686:Vulnerable software versions
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
Amazon Linux AMI: All versions
httpd24: before 2.4.58-1.101
CPE2.3- cpe:2.3:o:amazon_web_services:amazon_linux_ami:*:*:*:*:*:*:*:*
- cpe:2.3:o:amazon_web_services:httpd24:*:*:*:*:*:amazon_linux_ami:*:*
https://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. However, proof of concept for this vulnerability is available.
3) Resource management error
EUVDB-ID: #VU82245
Risk: Medium
CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]
CVE-ID: CVE-2023-45802
CWE-ID:
CWE-399 - Resource Management Errors
Exploit availability: No
DescriptionThe 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.
MitigationUpdate the affected packages:
i686:Vulnerable software versions
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
Amazon Linux AMI: All versions
httpd24: before 2.4.58-1.101
CPE2.3- cpe:2.3:o:amazon_web_services:amazon_linux_ami:*:*:*:*:*:*:*:*
- cpe:2.3:o:amazon_web_services:httpd24:*:*:*:*:*:amazon_linux_ami:*:*
https://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.
