{"id":102344,"date":"2026-02-05T11:37:23","date_gmt":"2026-02-05T06:07:23","guid":{"rendered":"https:\/\/www.seminarsonly.com\/news\/?p=102344"},"modified":"2026-02-06T11:23:28","modified_gmt":"2026-02-06T05:53:28","slug":"77447-error-code-vu77447-input-validation-error-cve-2023-29356","status":"publish","type":"post","link":"https:\/\/seminarsonly.com\/news\/77447-error-code-vu77447-input-validation-error-cve-2023-29356\/","title":{"rendered":"77447 Error Code | VU77447 Input Validation Error (CVE-2023-29356)"},"content":{"rendered":"<h3 data-path-to-node=\"0\"><span style=\"color: #008000;\"><em>The identifier <b data-path-to-node=\"0\" data-index-in-node=\"15\">#VU77447<\/b> refers to a high-severity <b data-path-to-node=\"0\" data-index-in-node=\"50\">Remote Code Execution (RCE)<\/b> vulnerability officially tracked as <b data-path-to-node=\"0\" data-index-in-node=\"114\">CVE-2023-29356<\/b>.<\/em><\/span><\/h3>\n<p data-path-to-node=\"1\">While &#8220;input validation error&#8221; is the general classification, the technical root cause is more specific: it is a <b data-path-to-node=\"1\" data-index-in-node=\"113\">Use After Free (UAF)<\/b> flaw within the <b data-path-to-node=\"1\" data-index-in-node=\"150\">Microsoft ODBC Driver for SQL Server<\/b>.<\/p>\n<h2 data-path-to-node=\"2\"><span style=\"color: #800000;\"><b data-path-to-node=\"2\" data-index-in-node=\"0\">Technical Breakdown<\/b><\/span><\/h2>\n<ul data-path-to-node=\"3\">\n<li>\n<p data-path-to-node=\"3,0,0\"><b data-path-to-node=\"3,0,0\" data-index-in-node=\"0\">Vulnerability Type:<\/b> Use After Free (CWE-416) resulting from Improper Input Validation (CWE-20).<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"3,1,0\"><b data-path-to-node=\"3,1,0\" data-index-in-node=\"0\">Severity:<\/b> <b data-path-to-node=\"3,1,0\" data-index-in-node=\"10\">7.8 (High)<\/b> on the CVSS 3.1 scale.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"3,2,0\"><b data-path-to-node=\"3,2,0\" data-index-in-node=\"0\">The Threat:<\/b> An attacker can execute arbitrary code on a victim&#8217;s system. To do this, they must typically trick a user into connecting to a malicious SQL Server via the vulnerable ODBC driver or convincing them to open a specially crafted file.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"3,3,0\"><b data-path-to-node=\"3,3,0\" data-index-in-node=\"0\">Impact:<\/b> If successfully exploited, the attacker gains the same permissions as the application using the driver, which could lead to full system compromise.<\/p>\n<\/li>\n<\/ul>\n<h3>Also Read : <a href=\"https:\/\/www.seminarsonly.com\/news\/arc-raiders-use-the-rotary-encoder-to-activate-the-server-switch\/\">ARC Raiders | Use The Rotary Encoder to Activate the Server Switch<\/a><\/h3>\n<hr data-path-to-node=\"4\" \/>\n<h2 data-path-to-node=\"5\"><span style=\"color: #800000;\"><b data-path-to-node=\"5\" data-index-in-node=\"0\">Affected Software<\/b><\/span><\/h2>\n<p data-path-to-node=\"6\">The vulnerability impacts the Microsoft ODBC Driver for SQL Server across <b data-path-to-node=\"6\" data-index-in-node=\"74\">Windows, Linux, and macOS<\/b>. Specifically:<\/p>\n<ul data-path-to-node=\"7\">\n<li>\n<p data-path-to-node=\"7,0,0\"><b data-path-to-node=\"7,0,0\" data-index-in-node=\"0\">ODBC Driver 17 for SQL Server:<\/b> Versions <b data-path-to-node=\"7,0,0\" data-index-in-node=\"40\">17.0.1.1<\/b> up to (but not including) <b data-path-to-node=\"7,0,0\" data-index-in-node=\"75\">17.10.4.1<\/b>.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"7,1,0\"><b data-path-to-node=\"7,1,0\" data-index-in-node=\"0\">ODBC Driver 18 for SQL Server:<\/b> Versions prior to <b data-path-to-node=\"7,1,0\" data-index-in-node=\"49\">18.2.2.1<\/b>.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"7,2,0\"><b data-path-to-node=\"7,2,0\" data-index-in-node=\"0\">SQL Server Bundles:<\/b> It is also included in certain Cumulative Updates (CUs) for <b data-path-to-node=\"7,2,0\" data-index-in-node=\"80\">SQL Server 2019<\/b> and <b data-path-to-node=\"7,2,0\" data-index-in-node=\"100\">2022<\/b>.<\/p>\n<\/li>\n<\/ul>\n<hr data-path-to-node=\"8\" \/>\n<h2 data-path-to-node=\"9\"><span style=\"color: #800000;\"><b data-path-to-node=\"9\" data-index-in-node=\"0\">How to Fix It<\/b><\/span><\/h2>\n<p data-path-to-node=\"10\">Microsoft addressed this vulnerability in mid-2023. To secure your system, you should update to the following versions or higher:<\/p>\n<ol start=\"1\" data-path-to-node=\"11\">\n<li>\n<p data-path-to-node=\"11,0,0\"><b data-path-to-node=\"11,0,0\" data-index-in-node=\"0\">ODBC Driver 17:<\/b> Update to version <b data-path-to-node=\"11,0,0\" data-index-in-node=\"34\">17.10.4.1<\/b>.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"11,1,0\"><b data-path-to-node=\"11,1,0\" data-index-in-node=\"0\">ODBC Driver 18:<\/b> Update to version <b data-path-to-node=\"11,1,0\" data-index-in-node=\"34\">18.2.2.1<\/b>.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"11,2,0\"><b data-path-to-node=\"11,2,0\" data-index-in-node=\"0\">SQL Server Instances:<\/b><\/p>\n<ul data-path-to-node=\"11,2,1\">\n<li>\n<p data-path-to-node=\"11,2,1,0,0\"><b data-path-to-node=\"11,2,1,0,0\" data-index-in-node=\"0\">SQL Server 2019:<\/b> Apply <b data-path-to-node=\"11,2,1,0,0\" data-index-in-node=\"23\">CU21<\/b> (KB5025808) or later.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"11,2,1,1,0\"><b data-path-to-node=\"11,2,1,1,0\" data-index-in-node=\"0\">SQL Server 2022:<\/b> Apply <b data-path-to-node=\"11,2,1,1,0\" data-index-in-node=\"23\">CU5<\/b> (KB5026806) or later.<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<blockquote data-path-to-node=\"12\">\n<p data-path-to-node=\"12,0\">[!TIP] Since this vulnerability requires a &#8220;connection&#8221; to a malicious source, it is highly recommended to restrict outbound database traffic to known, trusted IP addresses while you are in the process of patching.<\/p>\n<\/blockquote>\n","protected":false},"excerpt":{"rendered":"<p>The identifier #VU77447 refers to a high-severity Remote Code Execution (RCE) vulnerability officially tracked as CVE-2023-29356. While &#8220;input validation error&#8221; is the general classification, the technical root cause is more&hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6048],"tags":[],"class_list":["post-102344","post","type-post","status-publish","format-standard","hentry","category-error-fix"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.2 (Yoast SEO v27.2) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>77447 Error Code | VU77447 Input Validation Error (CVE-2023-29356) - Seminarsonly.com<\/title>\n<meta name=\"description\" content=\"The identifier #VU77447 refers to a high-severity Remote Code Execution (RCE) vulnerability officially tracked as CVE-2023-29356.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/seminarsonly.com\/news\/77447-error-code-vu77447-input-validation-error-cve-2023-29356\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"77447 Error Code | VU77447 Input Validation Error (CVE-2023-29356)\" \/>\n<meta property=\"og:description\" content=\"The identifier #VU77447 refers to a high-severity Remote Code Execution (RCE) vulnerability officially tracked as CVE-2023-29356.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/seminarsonly.com\/news\/77447-error-code-vu77447-input-validation-error-cve-2023-29356\/\" \/>\n<meta property=\"og:site_name\" content=\"Seminarsonly.com\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/facebook.com\/seminarsonly\" \/>\n<meta property=\"article:published_time\" content=\"2026-02-05T06:07:23+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-02-06T05:53:28+00:00\" \/>\n<meta name=\"author\" content=\"Freddy John\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@seminarsonly\" \/>\n<meta name=\"twitter:site\" content=\"@seminarsonly\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Freddy John\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/seminarsonly.com\/news\/77447-error-code-vu77447-input-validation-error-cve-2023-29356\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/seminarsonly.com\/news\/77447-error-code-vu77447-input-validation-error-cve-2023-29356\/\"},\"author\":{\"name\":\"Freddy John\",\"@id\":\"https:\/\/seminarsonly.com\/news\/#\/schema\/person\/75cf706896b7210fb0a84651adc258bd\"},\"headline\":\"77447 Error Code | VU77447 Input Validation Error (CVE-2023-29356)\",\"datePublished\":\"2026-02-05T06:07:23+00:00\",\"dateModified\":\"2026-02-06T05:53:28+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/seminarsonly.com\/news\/77447-error-code-vu77447-input-validation-error-cve-2023-29356\/\"},\"wordCount\":291,\"commentCount\":0,\"articleSection\":[\"Error Fix\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/seminarsonly.com\/news\/77447-error-code-vu77447-input-validation-error-cve-2023-29356\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/seminarsonly.com\/news\/77447-error-code-vu77447-input-validation-error-cve-2023-29356\/\",\"url\":\"https:\/\/seminarsonly.com\/news\/77447-error-code-vu77447-input-validation-error-cve-2023-29356\/\",\"name\":\"77447 Error Code | VU77447 Input Validation Error (CVE-2023-29356) - 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