{"answers":{"affected":"2 open source packages ship an affected version, including golang and stdlib. It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-27918 in the wild and no public exploit code.","fix":"Upgrade golang to a fixed version for your release line: 1.15.9 or 1.16.1.","what":"CVE-2021-27918 is a high-severity denial of service vulnerability in Golang Go, published on 10 Mar 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-2021-27918 and fix it if it is affected.\n\nWhat it is: CVE-2021-27918 is a high-severity denial of service vulnerability in Golang Go, published on 10 Mar 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-2021-27918 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- golang (Bitnami): affected all versions; fixed in 1.15.9, 1.16.1\n- stdlib (Go): affected all versions; fixed in 1.15.9, 1.16.1\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-2021-27918/ (Markdown: https://insights.sbomify.com/CVE-2021-27918/index.md)","id":"CVE-2021-27918","markdown":"https://insights.sbomify.com/CVE-2021-27918/index.md","name":"CVE-2021-27918","record":{"aliases":["AZL-79104","AZL-98703","BIT-golang-2021-27918","DEBIAN-CVE-2021-27918","GHSA-8mmp-c685-53vw","GO-2021-0234","OESA-2021-1184","SUSE-SU-2021:0938-1","UBUNTU-CVE-2021-27918","openSUSE-SU-2021:0480-1"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":true,"product_category":"Go standard library","requires_auth":"none","summary":"An attacker can cause a denial of service via an infinite loop in the Go XML decoder when using a custom TokenReader that returns EOF prematurely.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"go","vendor":"golang"}],"cvss":{"score":7.5,"severity":"high","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-835","name":"Loop with Unreachable Exit Condition"}],"description":"encoding/xml in Go before 1.15.9 and 1.16.x before 1.16.1 has an infinite loop if a custom TokenReader (for xml.NewTokenDecoder) returns EOF in the middle of an element. This can occur in the Decode, DecodeElement, or Skip method.","ecosystems":["Bitnami","Go","SUSE:Enterprise Storage 6","SUSE:Linux Enterprise High Performance Computing 15 SP1-ESPOS","SUSE:Linux Enterprise High Performance Computing 15 SP1-LTSS","SUSE:Linux Enterprise Module for Development Tools 15 SP2","SUSE:Linux Enterprise Server 15 SP1-BCL","SUSE:Linux Enterprise Server 15 SP1-LTSS","SUSE:Linux Enterprise Server for SAP Applications 15 SP1","SUSE:Manager Proxy 4.0","SUSE:Manager Retail Branch Server 4.0","SUSE:Manager Server 4.0","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":"Denial of service in n/a","id":"CVE-2021-27918","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Bitnami","product":"golang:go","products":["golang:go"],"type":"denial_of_service","year":"2021"},"n_packages":13,"n_references":2,"next":{"headline":"Path traversal in n/a","id":"CVE-2021-27919"},"packages":[{"ecosystem":"Bitnami","fixed":["1.15.9","1.16.1"],"introduced":["0","1.16.0"],"last_affected":[],"package":"golang","purl":"pkg:bitnami/golang","source":"BIT-golang-2021-27918"},{"ecosystem":"Go","fixed":["1.15.9","1.16.1"],"introduced":["0","1.16.0-0"],"last_affected":[],"package":"stdlib","purl":"pkg:golang/stdlib","source":"GO-2021-0234"},{"ecosystem":"SUSE:Enterprise Storage 6","fixed":["1.15.10-1.25.1"],"introduced":["0"],"last_affected":[],"package":"go1.15","purl":"pkg:rpm/suse/go1.15\u0026distro=SUSE%20Enterprise%20Storage%206","source":"SUSE-SU-2021:0938-1"},{"ecosystem":"SUSE:Linux Enterprise High Performance Computing 15 SP1-ESPOS","fixed":["1.15.10-1.25.1"],"introduced":["0"],"last_affected":[],"package":"go1.15","purl":"pkg:rpm/suse/go1.15\u0026distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP1-ESPOS","source":"SUSE-SU-2021:0938-1"},{"ecosystem":"SUSE:Linux Enterprise High Performance Computing 15 SP1-LTSS","fixed":["1.15.10-1.25.1"],"introduced":["0"],"last_affected":[],"package":"go1.15","purl":"pkg:rpm/suse/go1.15\u0026distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP1-LTSS","source":"SUSE-SU-2021:0938-1"},{"ecosystem":"SUSE:Linux Enterprise Module for Development Tools 15 SP2","fixed":["1.15.10-1.25.1"],"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-2021:0938-1"},{"ecosystem":"SUSE:Linux Enterprise Server 15 SP1-BCL","fixed":["1.15.10-1.25.1"],"introduced":["0"],"last_affected":[],"package":"go1.15","purl":"pkg:rpm/suse/go1.15\u0026distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP1-BCL","source":"SUSE-SU-2021:0938-1"},{"ecosystem":"SUSE:Linux Enterprise Server 15 SP1-LTSS","fixed":["1.15.10-1.25.1"],"introduced":["0"],"last_affected":[],"package":"go1.15","purl":"pkg:rpm/suse/go1.15\u0026distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP1-LTSS","source":"SUSE-SU-2021:0938-1"},{"ecosystem":"SUSE:Linux Enterprise Server for SAP Applications 15 SP1","fixed":["1.15.10-1.25.1"],"introduced":["0"],"last_affected":[],"package":"go1.15","purl":"pkg:rpm/suse/go1.15\u0026distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP1","source":"SUSE-SU-2021:0938-1"},{"ecosystem":"SUSE:Manager Proxy 4.0","fixed":["1.15.10-1.25.1"],"introduced":["0"],"last_affected":[],"package":"go1.15","purl":"pkg:rpm/suse/go1.15\u0026distro=SUSE%20Manager%20Proxy%204.0","source":"SUSE-SU-2021:0938-1"},{"ecosystem":"SUSE:Manager Retail Branch Server 4.0","fixed":["1.15.10-1.25.1"],"introduced":["0"],"last_affected":[],"package":"go1.15","purl":"pkg:rpm/suse/go1.15\u0026distro=SUSE%20Manager%20Retail%20Branch%20Server%204.0","source":"SUSE-SU-2021:0938-1"},{"ecosystem":"SUSE:Manager Server 4.0","fixed":["1.15.10-1.25.1"],"introduced":["0"],"last_affected":[],"package":"go1.15","purl":"pkg:rpm/suse/go1.15\u0026distro=SUSE%20Manager%20Server%204.0","source":"SUSE-SU-2021:0938-1"},{"ecosystem":"openSUSE:Leap 15.2","fixed":["1.15.10-lp152.14.1"],"introduced":["0"],"last_affected":[],"package":"go1.15","purl":"pkg:rpm/opensuse/go1.15\u0026distro=openSUSE%20Leap%2015.2","source":"openSUSE-SU-2021:0480-1"}],"prev":{"headline":"XSS in contact tracking and page hits report","id":"CVE-2021-27917"},"products":["n/a"],"published":"2021-03-10","related":[{"cvss_score":8.1,"headline":"Microsoft Windows CryptoAPI Spoofing","id":"CVE-2020-0601","kev_date_added":"2021-11-03","published":"2020-01-14"},{"cvss_score":9.8,"headline":"Missing bound checks can lead to memory corruption in safe Go in cmd/compile","id":"CVE-2026-27143","kev_date_added":null,"published":"2026-04-08"},{"cvss_score":9.8,"headline":"Unexpected behavior from Is methods for IPv4-mapped IPv6 addresses in net/netip","id":"CVE-2024-24790","kev_date_added":null,"published":"2024-06-05"},{"cvss_score":9.8,"headline":"Arbitrary code execution via go.mod toolchain directive in cmd/go","id":"CVE-2023-39320","kev_date_added":null,"published":"2023-09-08"},{"cvss_score":9.8,"headline":"Improper handling of JavaScript whitespace in html/template","id":"CVE-2023-24540","kev_date_added":null,"published":"2023-05-11"},{"cvss_score":9.8,"headline":"Backticks not treated as string delimiters in html/template","id":"CVE-2023-24538","kev_date_added":null,"published":"2023-04-06"},{"cvss_score":9.8,"headline":"Other in go/golang","id":"CVE-2012-2666","kev_date_added":null,"published":"2021-07-09"}],"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":"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":"An attacker can cause a denial of service via an infinite loop in the Go XML decoder when using a custom TokenReader that returns EOF prematurely.","url":"https://insights.sbomify.com/CVE-2021-27918/"}