{"id":27136,"date":"2025-04-19T18:17:32","date_gmt":"2025-04-19T18:17:32","guid":{"rendered":""},"modified":"2025-05-06T06:01:58","modified_gmt":"2025-05-06T06:01:58","slug":"cve-2023-45234-critical-buffer-overflow-vulnerability-in-edk2-s-network-package","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2023-45234-critical-buffer-overflow-vulnerability-in-edk2-s-network-package\/","title":{"rendered":"<strong>CVE-2023-45234: Critical Buffer Overflow Vulnerability in EDK2&#8217;s Network Package<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>The Common Vulnerabilities and Exposures (CVE) system has identified a critical vulnerability in the EDK2&#8217;s Network Package. Identified as CVE-2023-45234, this vulnerability is a buffer overflow issue that exploits the DNS Servers option from a DHCPv6 Advertise message. It marks a significant risk for systems and networks using EDK2&#8217;s Network Package, <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-23176-sql-injection-vulnerability-poses-serious-threat-to-data-security\/\"  data-wpil-monitor-id=\"39954\">posing a threat<\/a> to Confidentiality, Integrity, and Availability (CIA) triad. The magnitude of this threat is such that it can <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2023-33033-audio-playback-memory-corruption-leading-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"31236\">potentially lead to full system<\/a> compromise or data leakage, putting both personal and corporate networks at risk.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2023-45234<br \/>\nSeverity: High, CVSS Score 8.3<br \/>\nAttack Vector: Network<br \/>\nPrivileges Required: None<br \/>\nUser Interaction: None<br \/>\nImpact: Potential <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2023-33113-memory-corruption-vulnerability-leading-to-system-compromise-or-data-leakage\/\"  data-wpil-monitor-id=\"31347\">system compromise and data<\/a> leakage<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-2294348573\" class=\"ameeb-content-2 ameeb-entity-placement\"><div style=\"border-left: 4px solid #555; padding-left: 20px; margin: 48px 0; font-family: Roboto, sans-serif; color: #ffffff; line-height: 1.6; max-width: 700px;\">\r\n  <h2 style=\"margin-top: 0; font-size: 20px; font-weight: 600; display: flex; align-items: center;\">\r\n    <a href=\"https:\/\/www.ameeba.com\/chat\" style=\"display: inline-flex; align-items: center; margin-right: 8px;\">\r\n      <img decoding=\"async\" src=\"https:\/\/www.ameeba.com\/blog\/wp-content\/uploads\/2025\/10\/Best-App-icon-Ameeba.png\" alt=\"Ameeba Chat Icon\" style=\"width: 40px; height: 40px;\" \/>\r\n    <\/a>\r\n    A new way to communicate\r\n  <\/h2>\r\n\r\n  <p style=\"margin-bottom: 12px;\">\r\n    Ameeba Chat is built on encrypted identity, not personal profiles.\r\n  <\/p>\r\n\r\n  <p style=\"margin-bottom: 16px;\">\r\n    Message, call, share files, and coordinate with identities kept separate.\r\n  <\/p>\r\n\r\n  <ul style=\"list-style: none; padding-left: 0; margin-bottom: 20px;\">\r\n    <li>\u2022 Encrypted identity<\/li>\r\n    <li>\u2022 Ameeba Chat authenticates access<\/li>\r\n    <li>\u2022 Aliases and categories<\/li>\r\n    <li>\u2022 End-to-end encrypted chat, calls, and files<\/li>\r\n    <li>\u2022 Secure notes for sensitive information<\/li>\r\n  <\/ul>\r\n\r\n  <p style=\"font-style: italic; font-weight: 600; margin-bottom: 24px;\">\r\n    Private communication, rethought.\r\n  <\/p>\r\n\r\n  <div style=\"display: flex; flex-wrap: wrap; gap: 12px;\">\r\n    <a href=\"https:\/\/www.ameeba.com\/chat\/download\" style=\"background-color: #ffffff; color: #000000; padding: 10px 20px; text-decoration: none; border-radius: 6px; font-weight: 500;\">Download Ameeba Chat<\/a>\r\n    <a href=\"https:\/\/www.ameeba.com\/chat\" style=\"border: 1px solid #ffffff; color: #ffffff; padding: 10px 20px; text-decoration: none; border-radius: 6px; font-weight: 500;\">Learn More<\/a>\r\n  <\/div>\r\n<\/div>\r\n<\/div>\n<p>Product | Affected Versions<\/p>\n<p>EDK2&#8217;s Network Package | All <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2023-52307-high-severity-stack-overflow-vulnerability-in-paddlepaddle-prior-to-version-2-6-0\/\"  data-wpil-monitor-id=\"33928\">prior versions<\/a> to patch<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>The vulnerability CVE-2023-45234 exploits a <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-23186-sap-netweaver-application-server-abap-vulnerability-exposing-remote-credentials\/\"  data-wpil-monitor-id=\"31285\">buffer overflow condition in the EDK2&#8217;s Network<\/a> Package while processing DNS Servers options from a DHCPv6 Advertise message. The overflow occurs when the package tries to store more data in the memory buffer than it can handle, <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2023-43514-memory-corruption-vulnerability-leading-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"31568\">leading to the overwrite of adjacent memory<\/a> spaces. An attacker can exploit this vulnerability by sending specially crafted DHCPv6 messages, causing the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-29017-remote-code-execution-in-code-astro-internet-banking-system-2-0-0\/\"  data-wpil-monitor-id=\"32849\">system to crash or execute arbitrary code<\/a>.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-3400228616\" class=\"ameeb-content ameeb-entity-placement\"><div class=\"poptin-embedded\" data-id=\"f6b387694f681\"><\/div>\r\n\r\n\r\n\r\n\r\n\r\n<\/div>\n<p>The following is a conceptual example of a <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-32958-critical-adept-language-vulnerability-allowing-malicious-code-execution\/\"  data-wpil-monitor-id=\"38237\">malicious DHCPv6 Advertise message that can exploit this vulnerability<\/a>:<\/p>\n<pre><code class=\"\" data-line=\"\">POST \/DHCPv6\/Advertise HTTP\/1.1\nHost: target.example.com\nContent-Type: application\/dhcp\n{ &quot;dns_servers_option&quot;: &quot;OVERFLOWED_BUFFER_DATA&quot; }<\/code><\/pre>\n<p>In the above snippet, &#8220;OVERFLOWED_BUFFER_DATA&#8221; represents the malicious payload that overflows the buffer, <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2024-58136-critical-vulnerability-in-yii-2-framework-leading-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"31695\">potentially causing a system<\/a> crash or executing arbitrary code.<\/p>\n<p><strong>Mitigation<\/strong><\/p>\n<p>Users are strongly encouraged to apply the vendor patch as soon as it becomes available. In the interim, using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can serve as temporary mitigation to monitor and block suspicious network activities. It&#8217;s crucial to keep all <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2024-21737-critical-sap-application-interface-framework-file-adapter-vulnerability-leading-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"31889\">systems and security solutions up-to-date to prevent potential<\/a> exploitation.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview The Common Vulnerabilities and Exposures (CVE) system has identified a critical vulnerability in the EDK2&#8217;s Network Package. Identified as CVE-2023-45234, this vulnerability is a buffer overflow issue that exploits the DNS Servers option from a DHCPv6 Advertise message. It marks a significant risk for systems and networks using EDK2&#8217;s Network Package, posing a threat [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"footnotes":""},"categories":[1],"tags":[],"vendor":[],"product":[],"attack_vector":[86],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-27136","post","type-post","status-publish","format-standard","hentry","category-uncategorized","attack_vector-buffer-overflow"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/27136","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/comments?post=27136"}],"version-history":[{"count":10,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/27136\/revisions"}],"predecessor-version":[{"id":35290,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/27136\/revisions\/35290"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=27136"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=27136"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=27136"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=27136"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=27136"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=27136"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=27136"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=27136"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=27136"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}