{"id":44326,"date":"2025-05-25T22:39:21","date_gmt":"2025-05-25T22:39:21","guid":{"rendered":""},"modified":"2025-09-08T04:18:56","modified_gmt":"2025-09-08T10:18:56","slug":"cve-2023-50671-heap-based-buffer-overflow-vulnerability-in-exiftags-1-01","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2023-50671-heap-based-buffer-overflow-vulnerability-in-exiftags-1-01\/","title":{"rendered":"<strong>CVE-2023-50671: Heap-Based Buffer Overflow Vulnerability in Exiftags 1.01<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>In this blog post, we will be providing a comprehensive analysis of a critical vulnerability identified as CVE-2023-50671. This vulnerability is a heap-based buffer overflow in the nikon_prop1 component of exiftags 1.01. It&#8217;s a significant <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-4648-integrity-check-vulnerability-in-centreon-web-leading-to-potential-xss-injection\/\"  data-wpil-monitor-id=\"49865\">vulnerability due to its potential to lead<\/a> to system compromise or data leakage. The issue arises from a common programming error, where snprintf can write to an unexpected address. An attacker could exploit this <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-32363-critical-vulnerability-in-medidok-allowing-remote-code-execution\/\"  data-wpil-monitor-id=\"49826\">vulnerability to execute arbitrary code<\/a> in the context of the application. This <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-31039-unveiling-the-xml-external-entity-reference-vulnerability-in-pixelgrade-category-icon\/\"  data-wpil-monitor-id=\"60284\">vulnerability is particularly concerning for entities<\/a> that use the affected software in their digital infrastructure.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2023-50671<br \/>\nSeverity: High (7.8 CVSS)<br \/>\nAttack Vector: Remote<br \/>\nPrivileges Required: None<br \/>\nUser Interaction: None<br \/>\nImpact: <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2024-52880-critical-vulnerability-in-insyde-insydeh2o-kernels-potentially-leading-to-system-compromise\/\"  data-wpil-monitor-id=\"51466\">Potential system<\/a> compromise or data leakage<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-1381020391\" 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>Exiftags | 1.01<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>The <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-49661-untrusted-pointer-dereference-vulnerability-in-windows-ancillary-function-driver-for-winsock\/\"  data-wpil-monitor-id=\"80407\">vulnerability exists in the function<\/a> nikon_prop1 in nikon.c. The application fails to properly <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2022-3604-data-validation-vulnerability-in-contact-form-entries-wordpress-plugin\/\"  data-wpil-monitor-id=\"52169\">validate the size of user-supplied data<\/a> before writing it to a fixed-length heap-based buffer. This failure leads to a <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-4810-critical-remote-buffer-overflow-vulnerability-in-tenda-ac7\/\"  data-wpil-monitor-id=\"50651\">buffer overflow<\/a>, overwriting adjacent memory locations. The snprintf function can write to an unexpected address, which an attacker can leverage to insert and <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-24022-critical-server-code-execution-vulnerability-in-itop-it-service-management-tool\/\"  data-wpil-monitor-id=\"49842\">execute arbitrary code<\/a>.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-587182740\" 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>Here is a conceptual example of how this vulnerability might be exploited. This example shows a potential malicious payload that could be used to trigger the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-4732-critical-buffer-overflow-vulnerability-in-totolink-a3002r-and-a3002ru\/\"  data-wpil-monitor-id=\"50770\">buffer overflow<\/a>.<\/p>\n<pre><code class=\"\" data-line=\"\"># A conceptual example only - not actual exploit code\n.\/exiftags -i malicious_image.jpg<\/code><\/pre>\n<p>In this example, `malicious_image.jpg` could contain crafted metadata that overflows the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-32704-buffer-over-read-vulnerability-in-microsoft-office-excel\/\"  data-wpil-monitor-id=\"50115\">buffer when processed by the vulnerable<\/a> function. This could lead to <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-30377-code-execution-vulnerability-in-microsoft-office-via-use-after-free\/\"  data-wpil-monitor-id=\"49930\">execution of arbitrary code<\/a> embedded within the metadata, potentially compromising the system.<br \/>\nPlease note that this is a conceptual example and should not be used for any malicious activities. This example is provided for educational purposes only, to help <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-4809-critical-vulnerability-in-tenda-ac7-router-leads-to-system-compromise\/\"  data-wpil-monitor-id=\"50632\">system administrators and developers understand and mitigate this vulnerability<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview In this blog post, we will be providing a comprehensive analysis of a critical vulnerability identified as CVE-2023-50671. This vulnerability is a heap-based buffer overflow in the nikon_prop1 component of exiftags 1.01. It&#8217;s a significant vulnerability due to its potential to lead to system compromise or data leakage. The issue arises from a common [&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-44326","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\/44326","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=44326"}],"version-history":[{"count":12,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/44326\/revisions"}],"predecessor-version":[{"id":72830,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/44326\/revisions\/72830"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=44326"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=44326"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=44326"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=44326"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=44326"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=44326"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=44326"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=44326"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=44326"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}