{"id":48375,"date":"2022-09-09T15:12:21","date_gmt":"2022-09-09T15:12:21","guid":{"rendered":"https:\/\/packetstormsecurity.com\/news\/view\/33823\/Google-Urges-Open-Source-Community-To-Fuzz-Test-Code.html"},"modified":"2022-09-09T15:12:21","modified_gmt":"2022-09-09T15:12:21","slug":"google-urges-open-source-community-to-fuzz-test-code","status":"publish","type":"post","link":"https:\/\/www.threatshub.org\/blog\/google-urges-open-source-community-to-fuzz-test-code\/","title":{"rendered":"Google Urges Open Source Community To Fuzz Test Code"},"content":{"rendered":"<p>Google&#8217;s open source security team says OSS-Fuzz, its community fuzzing service, has helped fix more than 8,000 security vulnerabilities and 26,000 other bugs in open source projects since its 2016 debut.<\/p>\n<p>And the group would like to see open source developers do more fuzzing to make the world a better place, or at least make software a bit more secure. So it&#8217;s offering concrete incentives versus exposure points.<\/p>\n<p>Fuzzing, or fuzz testing, is a software testing technique that tries to find bugs by injecting random or semi-random data into software. It was developed by UW-Madison computer science professor <a target=\"_blank\" rel=\"nofollow noopener\" href=\"https:\/\/www.cs.wisc.edu\/2021\/01\/14\/the-trials-and-tribulations-of-academic-publishing-and-fuzz-testing\/\">Barton Miller<\/a> <a target=\"_blank\" rel=\"nofollow noopener\" href=\"https:\/\/arxiv.org\/pdf\/2008.06537.pdf\">in 1989<\/a> [PDF]. Miller wanted to understand how noise created by a rainstorm interfered with his dial-up modem connection to a Unix system, and this opened up new areas of research into code analysis.<\/p>\n<div aria-hidden=\"true\" class=\"adun\" data-pos=\"top\" data-raptor=\"condor\" data-xsm=\",fluid,mpu,\" data-sm=\",fluid,mpu,\" data-md=\",fluid,mpu,\"> <noscript> <a href=\"https:\/\/pubads.g.doubleclick.net\/gampad\/jump?co=1&amp;iu=\/6978\/reg_security\/patches&amp;sz=300x50%7C300x100%7C300x250%7C300x251%7C300x252%7C300x600%7C300x601&amp;tile=2&amp;c=2YxvNDyfu7PuikXnU4fPw6wAAAMM&amp;t=ct%3Dns%26unitnum%3D2%26raptor%3Dcondor%26pos%3Dtop%26test%3D0\" target=\"_blank\" rel=\"noopener\"> <img decoding=\"async\" src=\"https:\/\/pubads.g.doubleclick.net\/gampad\/ad?co=1&amp;iu=\/6978\/reg_security\/patches&amp;sz=300x50%7C300x100%7C300x250%7C300x251%7C300x252%7C300x600%7C300x601&amp;tile=2&amp;c=2YxvNDyfu7PuikXnU4fPw6wAAAMM&amp;t=ct%3Dns%26unitnum%3D2%26raptor%3Dcondor%26pos%3Dtop%26test%3D0\" alt> <\/a> <\/noscript> <\/div>\n<p>Google launched <a target=\"_blank\" rel=\"nofollow noopener\" href=\"https:\/\/github.com\/google\/oss-fuzz\">OSS-Fuzz<\/a> in 2016 in response to the <a target=\"_blank\" href=\"https:\/\/www.theregister.com\/2014\/04\/08\/running_openssl_patch_now_to_fix_critical_bug\/\" rel=\"noopener\">Heartbleed vulnerability<\/a>, a memory buffer overflow flaw that could have been detected by fuzz testing.<\/p>\n<div aria-hidden=\"true\" class=\"adun\" data-pos=\"top\" data-raptor=\"falcon\" data-xmd=\",fluid,mpu,leaderboard,\" data-lg=\",fluid,mpu,leaderboard,\" data-xlg=\",fluid,billboard,superleaderboard,mpu,leaderboard,\" data-xxlg=\",fluid,billboard,superleaderboard,brandwidth,brandimpact,leaderboard,mpu,\"> <noscript> <a href=\"https:\/\/pubads.g.doubleclick.net\/gampad\/jump?co=1&amp;iu=\/6978\/reg_security\/patches&amp;sz=300x50%7C300x100%7C300x250%7C300x251%7C300x252%7C300x600%7C300x601&amp;tile=4&amp;c=44YxvNDyfu7PuikXnU4fPw6wAAAMM&amp;t=ct%3Dns%26unitnum%3D4%26raptor%3Dfalcon%26pos%3Dmid%26test%3D0\" target=\"_blank\" rel=\"noopener\"> <img decoding=\"async\" src=\"https:\/\/pubads.g.doubleclick.net\/gampad\/ad?co=1&amp;iu=\/6978\/reg_security\/patches&amp;sz=300x50%7C300x100%7C300x250%7C300x251%7C300x252%7C300x600%7C300x601&amp;tile=4&amp;c=44YxvNDyfu7PuikXnU4fPw6wAAAMM&amp;t=ct%3Dns%26unitnum%3D426raptor%3Dfalcon%26pos%3Dmid%26test%3D0\" alt> <\/a> <\/noscript> <\/div>\n<div class=\"adun_eagle_desktop_story_wrapper\">\n<div aria-hidden=\"true\" class=\"adun\" data-pos=\"mid\" data-raptor=\"eagle\" data-xxlg=\",mpu,dmpu,\"> <noscript> <a href=\"https:\/\/pubads.g.doubleclick.net\/gampad\/jump?co=1&amp;iu=\/6978\/reg_security\/patches&amp;sz=300x50%7C300x100%7C300x250%7C300x251%7C300x252%7C300x600%7C300x601&amp;tile=3&amp;c=33YxvNDyfu7PuikXnU4fPw6wAAAMM&amp;t=ct%3Dns%26unitnum%3D3%26raptor%3Deagle%26pos%3Dmid%26test%3D0\" target=\"_blank\" rel=\"noopener\"> <img decoding=\"async\" src=\"https:\/\/pubads.g.doubleclick.net\/gampad\/ad?co=1&amp;iu=\/6978\/reg_security\/patches&amp;sz=300x50%7C300x100%7C300x250%7C300x251%7C300x252%7C300x600%7C300x601&amp;tile=3&amp;c=33YxvNDyfu7PuikXnU4fPw6wAAAMM&amp;t=ct%3Dns%26unitnum%3D3%26raptor%3Deagle%26pos%3Dmid%26test%3D0\" alt> <\/a> <\/noscript> <\/div>\n<\/p><\/div>\n<p>&#8220;At the time, though, fuzzing was not widely used and was cumbersome for developers, requiring extensive manual effort,&#8221; explain Jonathan Metzman and Dongge Liu, from Google&#8217;s Open Source Security Team, in a <a target=\"_blank\" rel=\"nofollow noopener\" href=\"https:\/\/security.googleblog.com\/2022\/09\/fuzzing-beyond-memory-corruption.html\">blog post<\/a>.<\/p>\n<p>OSS-Fuzz currently checks some 700 critical open source projects for bugs and in July spotted <a target=\"_blank\" rel=\"nofollow noopener\" href=\"https:\/\/bugs.chromium.org\/p\/oss-fuzz\/issues\/detail?id=49053\">a serious flaw<\/a> in the TinyGLTF project, a library that relies on the C library function wordexp() for file path expansion on untrusted paths from an input file.<\/p>\n<div aria-hidden=\"true\" class=\"adun\" data-pos=\"top\" data-raptor=\"falcon\" data-xsm=\",fluid,mpu,\" data-sm=\",fluid,mpu,\" data-md=\",fluid,mpu,\"> <noscript> <a href=\"https:\/\/pubads.g.doubleclick.net\/gampad\/jump?co=1&amp;iu=\/6978\/reg_security\/patches&amp;sz=300x50%7C300x100%7C300x250%7C300x251%7C300x252%7C300x600%7C300x601&amp;tile=4&amp;c=44YxvNDyfu7PuikXnU4fPw6wAAAMM&amp;t=ct%3Dns%26unitnum%3D4%26raptor%3Dfalcon%26pos%3Dmid%26test%3D0\" target=\"_blank\" rel=\"noopener\"> <img decoding=\"async\" src=\"https:\/\/pubads.g.doubleclick.net\/gampad\/ad?co=1&amp;iu=\/6978\/reg_security\/patches&amp;sz=300x50%7C300x100%7C300x250%7C300x251%7C300x252%7C300x600%7C300x601&amp;tile=4&amp;c=44YxvNDyfu7PuikXnU4fPw6wAAAMM&amp;t=ct%3Dns%26unitnum%3D426raptor%3Dfalcon%26pos%3Dmid%26test%3D0\" alt> <\/a> <\/noscript> <\/div>\n<p>&#8220;This <a target=\"_blank\" rel=\"nofollow noopener\" href=\"https:\/\/github.com\/syoyo\/tinygltf\/issues\/368\">vulnerability<\/a> shows that it was possible to inject backticks into the input glTF file format and allow commands to be executed during parsing,&#8221; explained Metzman and Liu.<\/p>\n<p>Any project incorporating TinyGLTF as a dependency was potentially vulnerable, so this was a meaningful win for fuzzing.<\/p>\n<p>Metzman and Liu attribute the find to the work their security team undertook last December <a target=\"_blank\" rel=\"nofollow noopener\" href=\"https:\/\/security.googleblog.com\/2021\/12\/improving-oss-fuzz-and-jazzer-to-catch.html\">in response to the Log4Shell vulnerability<\/a>. That effort led to the development of new sanitizers that could identify bugs capable of being exploited to carry out arbitrary commands in any programming language. One of those sanitizers, <a target=\"_blank\" rel=\"nofollow noopener\" href=\"https:\/\/github.com\/google\/oss-fuzz\/tree\/5675ec6958b74ebba5612b72dfe919c59e92d1df\/infra\/experimental\/SystemSan\">SystemSan<\/a>, is credited with spotting the TinyGLTF bug.<\/p>\n<p>The work has led to proof-of-concept code for spotting problems in JavaScript and Python programs, and, with the help of security firm Code Intelligence, to the creation of sanitizers for various Java-specific issues. According to Metzman and Liu, several deserialization and LDAP injection vulnerabilities have already been found using these tools and are awaiting coordinated disclosure.<\/p>\n<p>Metzman and Liu have encouraged those participating in the open source community to embrace fuzzing and have dangled the prospect of rewards. Those who integrate a new sanitizer in OSS-Fuzz, or a fuzzing engine like Jazzer, that finds at least two previously unidentified vulnerabilities in OSS-Fuzz projects will receive an $11,337 award.<\/p>\n<div aria-hidden=\"true\" class=\"adun\" id=\"story_eagle_xsm_sm_md_xmd_lg_xlg\" data-pos=\"mid\" data-raptor=\"eagle\" data-xsm=\",mpu,dmpu,\" data-sm=\",mpu,dmpu,\" data-md=\",mpu,dmpu,\" data-xmd=\",mpu,dmpu,\" data-lg=\",mpu,dmpu,\" data-xlg=\",mpu,dmpu,\"> <noscript> <a href=\"https:\/\/pubads.g.doubleclick.net\/gampad\/jump?co=1&amp;iu=\/6978\/reg_security\/patches&amp;sz=300x50%7C300x100%7C300x250%7C300x251%7C300x252%7C300x600%7C300x601&amp;tile=3&amp;c=33YxvNDyfu7PuikXnU4fPw6wAAAMM&amp;t=ct%3Dns%26unitnum%3D3%26raptor%3Deagle%26pos%3Dmid%26test%3D0\" target=\"_blank\" rel=\"noopener\"> <img decoding=\"async\" src=\"https:\/\/pubads.g.doubleclick.net\/gampad\/ad?co=1&amp;iu=\/6978\/reg_security\/patches&amp;sz=300x50%7C300x100%7C300x250%7C300x251%7C300x252%7C300x600%7C300x601&amp;tile=3&amp;c=33YxvNDyfu7PuikXnU4fPw6wAAAMM&amp;t=ct%3Dns%26unitnum%3D3%26raptor%3Deagle%26pos%3Dmid%26test%3D0\" alt> <\/a> <\/noscript> <\/div>\n<p>Alternatively, those integrating a new project of sufficient importance into OSS-Fuzz \u2013 a large user base and\/or be critical to global IT infrastructure \u2013 are <a target=\"_blank\" rel=\"nofollow noopener\" href=\"https:\/\/opensource.googleblog.com\/2017\/05\/oss-fuzz-five-months-later-and.html\">eligible for awards<\/a> ranging from $1,000 to $20,000.<\/p>\n<p>&#8220;Fuzzing still has a lot of unexplored potential in discovering more classes of vulnerabilities,&#8221; conclude Metzman and Liu. \u00ae<\/p>\n<p> READ MORE <a href=\"https:\/\/packetstormsecurity.com\/news\/view\/33823\/Google-Urges-Open-Source-Community-To-Fuzz-Test-Code.html\">HERE<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>READ MORE HERE&#8230;<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"colormag_page_layout":"default_layout","footnotes":""},"categories":[277],"tags":[5841],"class_list":["post-48375","post","type-post","status-publish","format-standard","hentry","category-cybersecurity-blogs","tag-headlinehackergoogle"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Google Urges Open Source Community To Fuzz Test Code 2026 | ThreatsHub Cybersecurity News<\/title>\n<meta name=\"description\" content=\"ThreatsHub Cybersecurity News | ThreatsHub.org | Cloud Security &amp; Cyber Threats Analysis Hub. 100% Free OSINT 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