CVE-2022-23943 Report - Details, Severity, & Advisories
Twingate Team
•
May 31, 2024
What is CVE-2022-23943?
CVE-2022-23943 is a critical security vulnerability affecting the Apache HTTP Server, specifically its mod\_sed module. This out-of-bounds write issue allows attackers to overwrite heap memory with potentially malicious data, impacting systems running Apache HTTP Server 2.4 version 2.4.52 and prior versions. The vulnerability can lead to arbitrary code execution or denial of service, depending on the system configuration and privileges associated with the server process. It is particularly relevant for systems using mod\_sed for stream editing of response bodies.
Who is impacted by this?
The CVE-2022-23943 vulnerability affects users of the Apache HTTP Server, specifically those running version 2.4.52 and prior versions. This issue is relevant for systems using the mod\_sed module for stream editing of response bodies. If you're using Apache HTTP Server versions from 2.4.0 up to and including 2.4.52, your system may be at risk.
What should I do if I’m affected?
If you're affected by the CVE-2022-23943 vulnerability, it's crucial to take action to secure your system. Here's a simplified step-by-step guide:
Update your Apache HTTP Server to the latest version, which includes a fix for the vulnerability.
Monitor the Apache HTTP Server project for security advisories and patches related to this issue.
For Debian 9 stretch users, upgrade the apache2 packages to version 2.4.25-3+deb9u13.
Fedora 35 users should update to Apache HTTP Server version 2.4.53-1.fc35.
Remember to maintain strong security practices, such as using unique passwords, enabling multi-factor authentication, and regularly updating software.
Is this in CISA’s Known Exploited Vulnerabilities Catalog?
The CVE-2022-23943 vulnerability is not listed in CISA's Known Exploited Vulnerabilities Catalog. This out-of-bounds write issue in Apache HTTP Server's mod\_sed module affects version 2.4.52 and prior versions. To secure your system, update your Apache HTTP Server to the latest version, which includes a fix for the vulnerability.
Weakness Enumeration
The weakness enumeration for this vulnerability is categorized as CWE-787 (Out-of-bounds Write) and CWE-190 (Integer Overflow or Wraparound) in Apache HTTP Server's mod\_sed module.
Learn More
For a comprehensive understanding of this vulnerability, including its description, severity, technical details, and known affected software configurations, refer to the NVD page or the resources listed below.
Rapidly implement a modern Zero Trust network that is more secure and maintainable than VPNs.
CVE-2022-23943 Report - Details, Severity, & Advisories
Twingate Team
•
May 31, 2024
What is CVE-2022-23943?
CVE-2022-23943 is a critical security vulnerability affecting the Apache HTTP Server, specifically its mod\_sed module. This out-of-bounds write issue allows attackers to overwrite heap memory with potentially malicious data, impacting systems running Apache HTTP Server 2.4 version 2.4.52 and prior versions. The vulnerability can lead to arbitrary code execution or denial of service, depending on the system configuration and privileges associated with the server process. It is particularly relevant for systems using mod\_sed for stream editing of response bodies.
Who is impacted by this?
The CVE-2022-23943 vulnerability affects users of the Apache HTTP Server, specifically those running version 2.4.52 and prior versions. This issue is relevant for systems using the mod\_sed module for stream editing of response bodies. If you're using Apache HTTP Server versions from 2.4.0 up to and including 2.4.52, your system may be at risk.
What should I do if I’m affected?
If you're affected by the CVE-2022-23943 vulnerability, it's crucial to take action to secure your system. Here's a simplified step-by-step guide:
Update your Apache HTTP Server to the latest version, which includes a fix for the vulnerability.
Monitor the Apache HTTP Server project for security advisories and patches related to this issue.
For Debian 9 stretch users, upgrade the apache2 packages to version 2.4.25-3+deb9u13.
Fedora 35 users should update to Apache HTTP Server version 2.4.53-1.fc35.
Remember to maintain strong security practices, such as using unique passwords, enabling multi-factor authentication, and regularly updating software.
Is this in CISA’s Known Exploited Vulnerabilities Catalog?
The CVE-2022-23943 vulnerability is not listed in CISA's Known Exploited Vulnerabilities Catalog. This out-of-bounds write issue in Apache HTTP Server's mod\_sed module affects version 2.4.52 and prior versions. To secure your system, update your Apache HTTP Server to the latest version, which includes a fix for the vulnerability.
Weakness Enumeration
The weakness enumeration for this vulnerability is categorized as CWE-787 (Out-of-bounds Write) and CWE-190 (Integer Overflow or Wraparound) in Apache HTTP Server's mod\_sed module.
Learn More
For a comprehensive understanding of this vulnerability, including its description, severity, technical details, and known affected software configurations, refer to the NVD page or the resources listed below.
Rapidly implement a modern Zero Trust network that is more secure and maintainable than VPNs.
CVE-2022-23943 Report - Details, Severity, & Advisories
Twingate Team
•
May 31, 2024
What is CVE-2022-23943?
CVE-2022-23943 is a critical security vulnerability affecting the Apache HTTP Server, specifically its mod\_sed module. This out-of-bounds write issue allows attackers to overwrite heap memory with potentially malicious data, impacting systems running Apache HTTP Server 2.4 version 2.4.52 and prior versions. The vulnerability can lead to arbitrary code execution or denial of service, depending on the system configuration and privileges associated with the server process. It is particularly relevant for systems using mod\_sed for stream editing of response bodies.
Who is impacted by this?
The CVE-2022-23943 vulnerability affects users of the Apache HTTP Server, specifically those running version 2.4.52 and prior versions. This issue is relevant for systems using the mod\_sed module for stream editing of response bodies. If you're using Apache HTTP Server versions from 2.4.0 up to and including 2.4.52, your system may be at risk.
What should I do if I’m affected?
If you're affected by the CVE-2022-23943 vulnerability, it's crucial to take action to secure your system. Here's a simplified step-by-step guide:
Update your Apache HTTP Server to the latest version, which includes a fix for the vulnerability.
Monitor the Apache HTTP Server project for security advisories and patches related to this issue.
For Debian 9 stretch users, upgrade the apache2 packages to version 2.4.25-3+deb9u13.
Fedora 35 users should update to Apache HTTP Server version 2.4.53-1.fc35.
Remember to maintain strong security practices, such as using unique passwords, enabling multi-factor authentication, and regularly updating software.
Is this in CISA’s Known Exploited Vulnerabilities Catalog?
The CVE-2022-23943 vulnerability is not listed in CISA's Known Exploited Vulnerabilities Catalog. This out-of-bounds write issue in Apache HTTP Server's mod\_sed module affects version 2.4.52 and prior versions. To secure your system, update your Apache HTTP Server to the latest version, which includes a fix for the vulnerability.
Weakness Enumeration
The weakness enumeration for this vulnerability is categorized as CWE-787 (Out-of-bounds Write) and CWE-190 (Integer Overflow or Wraparound) in Apache HTTP Server's mod\_sed module.
Learn More
For a comprehensive understanding of this vulnerability, including its description, severity, technical details, and known affected software configurations, refer to the NVD page or the resources listed below.
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