{"answers":{"affected":"5 open source packages ship an affected version, including golang.org/x/net, golang and stdlib. It affects 2 products.","exploited":"There is no known exploitation of CVE-2021-31525 in the wild and no public exploit code.","fix":"Upgrade golang.org/x/net to 0.0.0-20210428140749-89ef3d95e781 or later.","what":"CVE-2021-31525 is a medium-severity denial of service vulnerability in Fedoraproject Fedora, published on 27 May 2021. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-31525 and fix it if it is affected.\n\nWhat it is: CVE-2021-31525 is a medium-severity denial of service vulnerability in Fedoraproject Fedora, published on 27 May 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2021-31525 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- golang.org/x/net (Go): affected all versions; fixed in 0.0.0-20210428140749-89ef3d95e781\n- golang.org/x/net (Go): affected all versions; fixed in 0.0.0-20210428140749-89ef3d95e781\n- golang.org/x/net (Go): affected all versions; fixed in 0.0.0-20210428140749-89ef3d95e781\n- golang (Bitnami): affected all versions; fixed in 1.15.12, 1.16.4\n- stdlib (Go): affected all versions; fixed in 1.15.12, 1.16.4\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2021-31525/ (Markdown: https://insights.sbomify.com/CVE-2021-31525/index.md)","id":"CVE-2021-31525","markdown":"https://insights.sbomify.com/CVE-2021-31525/index.md","name":"CVE-2021-31525","record":{"aliases":["BIT-golang-2021-31525","CLEANSTART-2026-FS34281","CLEANSTART-2026-LX99611","DEBIAN-CVE-2021-31525","GHSA-h86h-8ppg-mxmh","GO-2022-0236","SUSE-SU-2021:2082-1","SUSE-SU-2021:2085-1","UBUNTU-CVE-2021-31525","openSUSE-SU-2021:0904-1"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Go standard library","requires_auth":"none","summary":"Remote attackers can cause a denial of service via large headers in Go's net/http package, affecting servers and clients.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"fedora","vendor":"fedoraproject"},{"product":"go","vendor":"golang"}],"cvss":{"score":5.9,"severity":"medium","source":"nvd","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-674","name":"Uncontrolled Recursion"}],"description":"net/http in Go before 1.15.12 and 1.16.x before 1.16.4 allows remote attackers to cause a denial of service (panic) via a large header to ReadRequest or ReadResponse. Server, Transport, and Client can each be affected in some configurations.","ecosystems":["Bitnami","Go","SUSE:Linux Enterprise Module for Development Tools 15 SP2","SUSE:Linux Enterprise Module for Development Tools 15 SP3","openSUSE:Leap 15.2"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"golang.org/x/net/http/httpguts vulnerable to Uncontrolled Recursion","id":"CVE-2021-31525","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Bitnami","product":"fedoraproject:fedora","products":["fedoraproject:fedora","golang:go"],"type":"denial_of_service","year":"2021"},"n_packages":10,"n_references":4,"next":{"headline":"Information disclosure in n/a","id":"CVE-2021-31530"},"packages":[{"ecosystem":"Bitnami","fixed":["1.15.12","1.16.4"],"introduced":["0","1.16.0"],"last_affected":[],"package":"golang","purl":"pkg:bitnami/golang","source":"BIT-golang-2021-31525"},{"ecosystem":"Go","fixed":["0.0.0-20210428140749-89ef3d95e781"],"introduced":["0"],"last_affected":[],"package":"golang.org/x/net","purl":null,"source":"GHSA-h86h-8ppg-mxmh"},{"ecosystem":"Go","fixed":["0.0.0-20210428140749-89ef3d95e781"],"introduced":["0"],"last_affected":[],"package":"golang.org/x/net","purl":"pkg:golang/golang.org/x/net","source":"GHSA-h86h-8ppg-mxmh"},{"ecosystem":"Go","fixed":["0.0.0-20210428140749-89ef3d95e781"],"introduced":["0"],"last_affected":[],"package":"golang.org/x/net","purl":"pkg:golang/golang.org/x/net","source":"GO-2022-0236"},{"ecosystem":"Go","fixed":["1.15.12","1.16.4"],"introduced":["0","1.16.0-0"],"last_affected":[],"package":"stdlib","purl":"pkg:golang/stdlib","source":"GO-2022-0236"},{"ecosystem":"SUSE:Linux Enterprise Module for Development Tools 15 SP2","fixed":["1.15.12-1.30.1"],"introduced":["0"],"last_affected":[],"package":"go1.15","purl":"pkg:rpm/suse/go1.15\u0026distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP2","source":"SUSE-SU-2021:2082-1"},{"ecosystem":"SUSE:Linux Enterprise Module for Development Tools 15 SP2","fixed":["1.16.4-1.14.2"],"introduced":["0"],"last_affected":[],"package":"go1.16","purl":"pkg:rpm/suse/go1.16\u0026distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP2","source":"SUSE-SU-2021:2085-1"},{"ecosystem":"SUSE:Linux Enterprise Module for Development Tools 15 SP3","fixed":["1.15.12-1.30.1"],"introduced":["0"],"last_affected":[],"package":"go1.15","purl":"pkg:rpm/suse/go1.15\u0026distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP3","source":"SUSE-SU-2021:2082-1"},{"ecosystem":"SUSE:Linux Enterprise Module for Development Tools 15 SP3","fixed":["1.16.4-1.14.2"],"introduced":["0"],"last_affected":[],"package":"go1.16","purl":"pkg:rpm/suse/go1.16\u0026distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP3","source":"SUSE-SU-2021:2085-1"},{"ecosystem":"openSUSE:Leap 15.2","fixed":["1.15.12-lp152.17.1"],"introduced":["0"],"last_affected":[],"package":"go1.15","purl":"pkg:rpm/opensuse/go1.15\u0026distro=openSUSE%20Leap%2015.2","source":"openSUSE-SU-2021:0904-1"}],"prev":{"headline":"Privilege escalation in n/a","id":"CVE-2021-31523"},"products":["n/a"],"published":"2021-05-27","related":[{"cvss_score":9.8,"headline":"PHP-CGI OS Command Injection","id":"CVE-2024-4577","kev_date_added":"2024-06-12","published":"2024-06-09"},{"cvss_score":9.8,"headline":"Grafana Authentication Bypass","id":"CVE-2021-39226","kev_date_added":"2022-08-25","published":"2021-10-05"},{"cvss_score":9.8,"headline":"VMware ESXi and Horizon DaaS OpenSLP Heap-Based Buffer Overflow","id":"CVE-2019-5544","kev_date_added":"2021-11-03","published":"2019-12-06"},{"cvss_score":9.6,"headline":"Google Chromium V8 Type Confusion","id":"CVE-2024-4947","kev_date_added":"2024-05-20","published":"2024-05-15"},{"cvss_score":9.6,"headline":"Google Chromium Visuals Use-After-Free","id":"CVE-2024-4671","kev_date_added":"2024-05-13","published":"2024-05-09"},{"cvss_score":9.6,"headline":"Google Chromium Mojo Insufficient Data Validation","id":"CVE-2022-3075","kev_date_added":"2022-09-08","published":"2022-09-26"},{"cvss_score":9.6,"headline":"Google Chromium Indexed DB API Use-After-Free","id":"CVE-2021-30633","kev_date_added":"2021-11-03","published":"2021-10-08"}],"sources":[{"class":"attribution","licence":"Apache-2.0","name":"Bitnami","prefix":"BIT"},{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"CC BY 4.0","name":"Go Vulnerability Database","prefix":"GO"},{"class":"attribution","licence":"CC BY 4.0","name":"SUSE","prefix":"SUSE"},{"class":"attribution","licence":"CC BY 4.0","name":"SUSE","prefix":"openSUSE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-03","vendors":["n/a"]},"summary":"Remote attackers can cause a denial of service via large headers in Go's net/http package, affecting servers and clients.","url":"https://insights.sbomify.com/CVE-2021-31525/"}