{"id":44651,"date":"2025-05-26T06:42:12","date_gmt":"2025-05-26T06:42:12","guid":{"rendered":""},"modified":"2025-06-14T11:34:37","modified_gmt":"2025-06-14T17:34:37","slug":"cve-2024-0582-a-potentially-dangerous-memory-leak-vulnerability-in-linux-kernel-s-io-uring-functionality","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2024-0582-a-potentially-dangerous-memory-leak-vulnerability-in-linux-kernel-s-io-uring-functionality\/","title":{"rendered":"<strong>CVE-2024-0582: A Potentially Dangerous Memory Leak Vulnerability in Linux Kernel&#8217;s io_uring Functionality<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>The cybersecurity world is once again under threat with the discovery of a new vulnerability, CVE-2024-0582, affecting the Linux kernel\u2019s io_uring functionality. This flaw is particularly dangerous as it exposes the system to potential crashes and privilege escalations. Any <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-0072-local-non-privileged-user-exploit-in-arm-ltd-gpu-kernel-drivers\/\"  data-wpil-monitor-id=\"58232\">local user<\/a> who registers a buffer ring with IORING_REGISTER_PBUF_RING, mmap() it, and then frees it is at risk. This <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-4809-critical-vulnerability-in-tenda-ac7-router-leads-to-system-compromise\/\"  data-wpil-monitor-id=\"50629\">vulnerability matters because of the potential system<\/a> compromise or data leakage that can take place, affecting all Linux-based systems that have not been patched.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2024-0582<br \/>\nSeverity: High (7.8)<br \/>\nAttack Vector: Local<br \/>\nPrivileges Required: Low<br \/>\nUser Interaction: Required<br \/>\nImpact: Potential system crash or <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-20003-escalation-of-privilege-vulnerability-in-intel-r-graphics-driver-software\/\"  data-wpil-monitor-id=\"50292\">privilege escalation<\/a> leading to system compromise or data leakage<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-500807936\" 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><a href=\"https:\/\/www.ameeba.com\/blog\/cve-2022-48913-linux-kernel-use-after-free-vulnerability-in-blktrace\/\"  data-wpil-monitor-id=\"52140\">Linux Kernel<\/a> | 4.0 &#8211; 5.8<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>The exploitation of this <a href=\"https:\/\/www.ameeba.com\/blog\/global-honeypot-creation-exploits-cisco-flaw-unmasking-the-vicioustrap-attack\/\"  data-wpil-monitor-id=\"50981\">vulnerability<\/a> occurs in a local attack scenario where a malicious user can create a memory leak flaw in the Linux Kernel\u2019s io_uring functionality. This can be achieved by the attacker registering a buffer ring with IORING_REGISTER_PBUF_RING, mmap() it, and then freeing it. The resulting memory leak can lead to a system crash or potentially allow the attacker to <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-20018-privilege-escalation-vulnerability-in-intel-graphics-drivers\/\"  data-wpil-monitor-id=\"50296\">escalate their privileges<\/a> on the system, leading to a full system compromise or data leakage.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-2517598865\" 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&#8217;s a basic conceptual representation of how the vulnerability might be exploited:<br \/>\n&#8220;`c++<br \/>\n#include <linux\/io_uring.h>\nint main() {<br \/>\nstruct io_uring ring;<br \/>\nio_uring_queue_init(32, &#038;ring, 0);<br \/>\n\/\/ Register a buffer ring<br \/>\nstruct iovec iovecs[1];<br \/>\niovecs[0].iov_base = malloc(1024);<br \/>\niovecs[0].iov_len = 1024;<br \/>\nio_uring_register_buffers(&#038;ring, iovecs, 1);<br \/>\n\/\/ mmap() the buffer ring<br \/>\nvoid *map = mmap(NULL, 1024, PROT_READ | PROT_WRITE, MAP_SHARED, ring.ring_fd, IORING_OFF_SQ_RING);<br \/>\n\/\/ Free the buffer ring, creating a <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-29828-critical-memory-leak-vulnerability-in-windows-cryptographic-services\/\"  data-wpil-monitor-id=\"63035\">memory leak<\/a><br \/>\nfree(iovecs[0].iov_base);<br \/>\nreturn 0;<br \/>\n}<br \/>\n&#8220;`<br \/>\nPlease note that this code is a conceptual representation and may not represent an actual exploit.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview The cybersecurity world is once again under threat with the discovery of a new vulnerability, CVE-2024-0582, affecting the Linux kernel\u2019s io_uring functionality. This flaw is particularly dangerous as it exposes the system to potential crashes and privilege escalations. Any local user who registers a buffer ring with IORING_REGISTER_PBUF_RING, mmap() it, and then frees it [&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":[88],"product":[95],"attack_vector":[76],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-44651","post","type-post","status-publish","format-standard","hentry","category-uncategorized","vendor-linux","product-linux-kernel","attack_vector-privilege-escalation"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/44651","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=44651"}],"version-history":[{"count":7,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/44651\/revisions"}],"predecessor-version":[{"id":56628,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/44651\/revisions\/56628"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=44651"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=44651"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=44651"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=44651"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=44651"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=44651"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=44651"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=44651"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=44651"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}