{"description":"Trending threats, MITRE ATT\u0026CK coverage, and detection metadata — refreshed continuously.","feed_url":"https://feed.craftedsignal.io/tags/libraw/","home_page_url":"https://feed.craftedsignal.io/","items":[{"_cs_actors":[],"_cs_cves":[{"cvss":8.1,"id":"CVE-2026-24660"}],"_cs_exploited":false,"_cs_products":[],"_cs_severities":["high"],"_cs_tags":["libraw","heap-overflow","cve-2026-24660"],"_cs_type":"advisory","_cs_vendors":[],"content_html":"\u003cp\u003eA heap-based buffer overflow vulnerability, identified as CVE-2026-24660, has been discovered in LibRaw, specifically affecting the x3f_load_huffman functionality in commit d20315b. The vulnerability arises from improper handling of a crafted input file, leading to a heap buffer overflow condition. An attacker can exploit this vulnerability by providing a malicious file designed to trigger the overflow during the Huffman decoding process. This could potentially allow an attacker to execute arbitrary code or cause a denial-of-service condition. This vulnerability impacts applications that utilize LibRaw for processing image files, particularly those dealing with potentially untrusted or externally sourced image data. Defenders should be aware of this vulnerability and take steps to mitigate the risk by updating to patched versions of LibRaw or implementing input validation measures.\u003c/p\u003e\n\u003ch2 id=\"attack-chain\"\u003eAttack Chain\u003c/h2\u003e\n\u003col\u003e\n\u003cli\u003eAn attacker crafts a malicious image file in a format processed by LibRaw. This file is specifically designed to exploit the \u003ccode\u003ex3f_load_huffman\u003c/code\u003e function.\u003c/li\u003e\n\u003cli\u003eThe vulnerable application using LibRaw processes the malicious image file.\u003c/li\u003e\n\u003cli\u003eDuring the Huffman decoding process within \u003ccode\u003ex3f_load_huffman\u003c/code\u003e, the crafted file triggers an integer overflow, leading to a heap buffer overflow.\u003c/li\u003e\n\u003cli\u003eData is written beyond the allocated buffer on the heap.\u003c/li\u003e\n\u003cli\u003eThis overwrite can corrupt adjacent heap metadata, potentially leading to control over memory allocation.\u003c/li\u003e\n\u003cli\u003eThe attacker gains the ability to overwrite function pointers or other critical data structures on the heap.\u003c/li\u003e\n\u003cli\u003eBy manipulating these structures, the attacker can redirect program execution flow.\u003c/li\u003e\n\u003cli\u003eThe attacker achieves arbitrary code execution within the context of the application using LibRaw.\u003c/li\u003e\n\u003c/ol\u003e\n\u003ch2 id=\"impact\"\u003eImpact\u003c/h2\u003e\n\u003cp\u003eSuccessful exploitation of CVE-2026-24660 can lead to arbitrary code execution, potentially allowing an attacker to gain full control over the affected system. The vulnerability resides in a widely used library, potentially impacting a large number of applications that depend on LibRaw for image processing. Exploitation could result in data breaches, system compromise, or denial-of-service conditions. Given the CVSS v3.1 base score of 8.1, this vulnerability poses a significant risk and requires prompt attention.\u003c/p\u003e\n\u003ch2 id=\"recommendation\"\u003eRecommendation\u003c/h2\u003e\n\u003cul\u003e\n\u003cli\u003eApply patches or updates to LibRaw to versions containing the fix for CVE-2026-24660 to remediate the vulnerability.\u003c/li\u003e\n\u003cli\u003eImplement input validation and sanitization measures for image files processed by LibRaw to detect and prevent malicious files from triggering the buffer overflow.\u003c/li\u003e\n\u003cli\u003eMonitor applications using LibRaw for unexpected crashes or abnormal behavior that could indicate exploitation attempts.\u003c/li\u003e\n\u003cli\u003eDeploy the Sigma rule \u0026ldquo;Detect LibRaw Heap Overflow Attempt\u0026rdquo; to detect exploitation attempts by monitoring process creation events.\u003c/li\u003e\n\u003cli\u003eConsider implementing Address Space Layout Randomization (ASLR) and Data Execution Prevention (DEP) to further mitigate the impact of successful exploitation.\u003c/li\u003e\n\u003c/ul\u003e\n","date_modified":"2026-04-07T15:17:37Z","date_published":"2026-04-07T15:17:37Z","id":"/briefs/2026-04-libraw-heap-overflow/","summary":"A heap-based buffer overflow vulnerability (CVE-2026-24660) exists in the x3f_load_huffman functionality of LibRaw commit d20315b, where a specially crafted malicious file can lead to a heap buffer overflow.","title":"LibRaw Heap-Based Buffer Overflow Vulnerability (CVE-2026-24660)","url":"https://feed.craftedsignal.io/briefs/2026-04-libraw-heap-overflow/"},{"_cs_actors":[],"_cs_cves":[{"cvss":8.1,"id":"CVE-2026-20884"}],"_cs_exploited":false,"_cs_products":[],"_cs_severities":["high"],"_cs_tags":["libraw","integer-overflow","heap-buffer-overflow","cve-2026-20884"],"_cs_type":"advisory","_cs_vendors":[],"content_html":"\u003cp\u003eCVE-2026-20884 describes an integer overflow vulnerability affecting LibRaw, specifically within the \u003ccode\u003edeflate_dng_load_raw\u003c/code\u003e function. This flaw resides in commit 8dc68e2 of the LibRaw library. The vulnerability can be exploited by providing a specially crafted DNG (Digital Negative) image file to an application using the affected LibRaw version. Successful exploitation results in a heap buffer overflow, potentially allowing an attacker to execute arbitrary code or cause a denial-of-service condition. This is significant for defenders because LibRaw is a widely used library for handling raw image formats and is often integrated into image processing applications.\u003c/p\u003e\n\u003ch2 id=\"attack-chain\"\u003eAttack Chain\u003c/h2\u003e\n\u003col\u003e\n\u003cli\u003eAttacker crafts a malicious DNG image file designed to trigger the integer overflow in \u003ccode\u003edeflate_dng_load_raw\u003c/code\u003e.\u003c/li\u003e\n\u003cli\u003eThe victim opens the malicious DNG file using an application that utilizes the vulnerable LibRaw library.\u003c/li\u003e\n\u003cli\u003eLibRaw\u0026rsquo;s \u003ccode\u003edeflate_dng_load_raw\u003c/code\u003e function is called to process the image data.\u003c/li\u003e\n\u003cli\u003eDuring the processing of the DNG file, an integer overflow occurs when calculating the size of a buffer.\u003c/li\u003e\n\u003cli\u003eThe overflow results in allocating a smaller-than-expected buffer on the heap.\u003c/li\u003e\n\u003cli\u003eSubsequently, when decompressing the image data, the \u003ccode\u003edeflate\u003c/code\u003e algorithm writes beyond the allocated buffer, causing a heap buffer overflow.\u003c/li\u003e\n\u003cli\u003eThe heap buffer overflow overwrites adjacent memory regions, potentially corrupting program data or code.\u003c/li\u003e\n\u003cli\u003eThe attacker leverages the memory corruption to achieve arbitrary code execution or cause the application to crash.\u003c/li\u003e\n\u003c/ol\u003e\n\u003ch2 id=\"impact\"\u003eImpact\u003c/h2\u003e\n\u003cp\u003eSuccessful exploitation of CVE-2026-20884 allows an attacker to potentially execute arbitrary code within the context of the application using the LibRaw library. This could lead to complete system compromise. Alternatively, the heap buffer overflow could cause the application to crash, resulting in a denial-of-service. The impact depends on the privileges of the application using LibRaw. Image processing software, photography workflows, and digital asset management systems are all potential targets.\u003c/p\u003e\n\u003ch2 id=\"recommendation\"\u003eRecommendation\u003c/h2\u003e\n\u003cul\u003e\n\u003cli\u003eApply patches or upgrade to a version of LibRaw that addresses CVE-2026-20884 to remediate the vulnerability.\u003c/li\u003e\n\u003cli\u003eMonitor for applications processing DNG files from untrusted sources (e.g., web downloads or email attachments).\u003c/li\u003e\n\u003cli\u003eConsider implementing file validation and sanitization techniques to detect and prevent malicious DNG files from being processed.\u003c/li\u003e\n\u003cli\u003eDeploy the Sigma rule \u0026ldquo;Detect LibRaw Exploitation via DNG\u0026rdquo; to identify potential exploitation attempts.\u003c/li\u003e\n\u003cli\u003eEnable process creation logging to detect applications loading LibRaw library when processing DNG files.\u003c/li\u003e\n\u003c/ul\u003e\n","date_modified":"2026-04-07T15:17:35Z","date_published":"2026-04-07T15:17:35Z","id":"/briefs/2026-04-libraw-integer-overflow/","summary":"CVE-2026-20884 is an integer overflow vulnerability in LibRaw's deflate_dng_load_raw function that leads to a heap buffer overflow when processing crafted DNG files.","title":"LibRaw Integer Overflow Vulnerability in deflate_dng_load_raw","url":"https://feed.craftedsignal.io/briefs/2026-04-libraw-integer-overflow/"}],"language":"en","title":"CraftedSignal Threat Feed — Libraw","version":"https://jsonfeed.org/version/1.1"}