{"id":49487,"date":"2025-06-07T18:49:08","date_gmt":"2025-06-07T18:49:08","guid":{"rendered":""},"modified":"2025-09-14T19:05:41","modified_gmt":"2025-09-15T01:05:41","slug":"cve-2024-48877-high-severity-heap-buffer-overflow-vulnerability-in-xls2csv-utility","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2024-48877-high-severity-heap-buffer-overflow-vulnerability-in-xls2csv-utility\/","title":{"rendered":"<strong>CVE-2024-48877: High-Severity Heap Buffer Overflow Vulnerability in xls2csv Utility<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>The cybersecurity landscape is constantly evolving, and with it, the emergence of new vulnerabilities becomes inevitable. One such vulnerability, CVE-2024-48877, has been identified as a significant threat to the xls2csv utility. This software utility, used for converting Excel files to Comma-separated values (CSV), is widely used in <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-23375-incorrect-use-of-privileged-apis-in-dell-powerprotect-data-manager-reporting\/\"  data-wpil-monitor-id=\"57797\">data processing and management<\/a>. With a high CVSS Severity Score of 8.4, this vulnerability has the potential to <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-41651-critical-system-compromise-due-to-missing-authentication\/\"  data-wpil-monitor-id=\"56115\">compromise systems<\/a> and leak sensitive data.<br \/>\nThe <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-5280-a-high-severity-heap-corruption-vulnerability-in-google-chrome-v8\/\"  data-wpil-monitor-id=\"56194\">vulnerability originates from a memory corruption<\/a> issue in the Shared String Table Record Parser implementation in xls2csv utility version 0.95. This risk could potentially impact a broad range of sectors, notably those reliant on <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-27052-memory-corruption-vulnerability-in-unix-clients-processing-data-packets\/\"  data-wpil-monitor-id=\"74122\">data processing<\/a> and transformation. Understanding and mitigating this <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-8913-critical-local-file-inclusion-vulnerability-in-wellchoose-s-organization-portal-system\/\"  data-wpil-monitor-id=\"82429\">vulnerability is crucial for all organizations<\/a> that leverage this utility in their operations.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2024-48877<br \/>\nSeverity: High (8.4 CVSS Score)<br \/>\nAttack Vector: <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-27010-path-traversal-vulnerability-in-bslthemes-tastyc-leading-to-php-local-file-inclusion\/\"  data-wpil-monitor-id=\"55825\">Local File<\/a><br \/>\nPrivileges Required: User Level<br \/>\nUser Interaction: Required<br \/>\nImpact: System compromise and potential <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-48383-django-select2-vulnerability-risking-data-leakage-and-unauthorized-access\/\"  data-wpil-monitor-id=\"56114\">data leakage<\/a><\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-1319220310\" 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>xls2csv | 0.95<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>The <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-1277-memory-corruption-vulnerability-in-autodesk-applications-through-malicious-pdf-files\/\"  data-wpil-monitor-id=\"57136\">vulnerability is rooted in a memory corruption<\/a> issue within the Shared String Table Record Parser implementation of the xls2csv utility. An attacker can exploit this vulnerability by crafting a malformed file that causes a <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-5228-critical-buffer-overflow-vulnerability-in-d-link-di-8100\/\"  data-wpil-monitor-id=\"55694\">heap buffer<\/a> overflow when processed by the xls2csv utility. This overflow can subsequently be used to <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-48828-arbitrary-php-code-execution-in-vbulletin-via-template-conditionals\/\"  data-wpil-monitor-id=\"55725\">execute arbitrary code<\/a> or manipulate the behavior of the system, potentially leading to total system compromise or data leakage.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-3153213047\" 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 illustration of how this exploit could theoretically be performed:<\/p>\n<pre><code class=\"\" data-line=\"\"># Malicious user creates a specially crafted file\necho &quot;malformed_data&quot; &gt; malformed_file.xls\n# User tricks the target into running the xls2csv utility on the malformed file\nxls2csv malformed_file.xls &gt; output.csv<\/code><\/pre>\n<p>In this example, `malformed_data` represents the crafted data that would cause a heap <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-30295-heap-based-buffer-overflow-vulnerability-in-adobe-framemaker\/\"  data-wpil-monitor-id=\"56694\">buffer overflow<\/a> when the xls2csv utility attempts to parse it. This example is highly simplified and the actual exploit would likely involve much more complex <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-53964-critical-file-manipulation-vulnerability-in-goldendict\/\"  data-wpil-monitor-id=\"67181\">manipulation of the file<\/a> contents.<\/p>\n<p><strong>Mitigation Guidance<\/strong><\/p>\n<p>To mitigate this vulnerability, users are advised to apply the vendor-provided patch immediately. If a patch is not yet available or cannot be applied immediately, a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can be used as a temporary measure. These tools can detect and block attempts to <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-45997-exploiting-file-upload-vulnerability-in-web-based-pharmacy-product-management-system\/\"  data-wpil-monitor-id=\"57137\">exploit this vulnerability<\/a>, providing a layer of protection until the patch can be applied. As always, users should remain vigilant and practice good cybersecurity hygiene, such as avoiding untrusted <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-6076-unsanitized-file-upload-vulnerability-in-partner-software-applications\/\"  data-wpil-monitor-id=\"82124\">files and regularly updating their software<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview The cybersecurity landscape is constantly evolving, and with it, the emergence of new vulnerabilities becomes inevitable. One such vulnerability, CVE-2024-48877, has been identified as a significant threat to the xls2csv utility. This software utility, used for converting Excel files to Comma-separated values (CSV), is widely used in data processing and management. With a high [&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-49487","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\/49487","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=49487"}],"version-history":[{"count":12,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/49487\/revisions"}],"predecessor-version":[{"id":74946,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/49487\/revisions\/74946"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=49487"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=49487"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=49487"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=49487"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=49487"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=49487"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=49487"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=49487"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=49487"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}