{"answers":{"affected":"It affects 10 products.","exploited":"There is no known exploitation of CVE-2020-8927 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2020-8927 is a medium-severity memory corruption vulnerability in Canonical Ubuntu Linux, published on 15 Sep 2020. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2020-8927 and fix it if it is affected.\n\nWhat it is: CVE-2020-8927 is a medium-severity memory corruption vulnerability in Canonical Ubuntu Linux, published on 15 Sep 2020. 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-2020-8927 in the wild and no public exploit code.\n\nAffected product: Canonical Ubuntu Linux. No package-level version data is available, so check the vendor advisory linked from the reference page.\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-2020-8927/ (Markdown: https://insights.sbomify.com/CVE-2020-8927/index.md)","id":"CVE-2020-8927","markdown":"https://insights.sbomify.com/CVE-2020-8927/index.md","name":"CVE-2020-8927","record":{"aliases":["ALPINE-CVE-2020-8927","ALSA-2021:1702","AZL-6341","CLEANSTART-2024-XN11840","DEBIAN-CVE-2020-8927","DLA-2476-1","DSA-4801-1","MGASA-2020-0385","RHSA-2021:1702","RLSA-2021:1702","SUSE-SU-2021:3942-1","SUSE-SU-2023:3669-1","SUSE-SU-2023:3670-1","SUSE-SU-2023:3827-1","SUSE-SU-2024:1968-1","SUSE-SU-2025:01762-1","UBUNTU-CVE-2020-8927","USN-4568-1","openSUSE-SU-2020:1578-1","openSUSE-SU-2021:3942-1","openSUSE-SU-2024:11708-1","openSUSE-SU-2024:13224-1","openSUSE-SU-2026:11988-1"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Brotli compression library","requires_auth":"none","summary":"An attacker can cause a denial of service by triggering a buffer overflow in the Brotli library during one-shot decompression of large data chunks.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Google","cpe":[{"product":"ubuntu_linux","vendor":"canonical"},{"product":"debian_linux","vendor":"debian"},{"product":"fedora","vendor":"fedoraproject"},{"product":"brotli","vendor":"google"},{"product":".net","vendor":"microsoft"},{"product":".net_core","vendor":"microsoft"},{"product":"powershell","vendor":"microsoft"},{"product":"visual_studio_2019","vendor":"microsoft"},{"product":"visual_studio_2022","vendor":"microsoft"},{"product":"leap","vendor":"opensuse"}],"cvss":{"score":5.3,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","version":"3.1"},"cwes":[{"id":"CWE-120","name":"Buffer Copy without Checking Size of Input"},{"id":"CWE-130","name":"Improper Handling of Length Parameter Inconsistency"}],"description":"A buffer overflow exists in the Brotli library versions prior to 1.0.8 where an attacker controlling the input length of a \"one-shot\" decompression request to a script can trigger a crash, which happens when copying over chunks of data larger than 2 GiB. It is recommended to update your Brotli library to 1.0.8 or later. If one cannot update, we recommend to use the \"streaming\" API as opposed to the \"one-shot\" API, and impose chunk size limits.","ecosystems":["AlmaLinux:8","Red Hat:enterprise_linux:8::appstream","Red Hat:enterprise_linux:8::baseos","Rocky Linux:8","SUSE:Linux Enterprise Micro 5.1","SUSE:Linux Enterprise Module for Basesystem 15 SP2","SUSE:Linux Enterprise Module for Basesystem 15 SP3","SUSE:Linux Enterprise Module for Public Cloud 12","SUSE:Linux Enterprise Module for Public Cloud 15 SP1","SUSE:Linux Enterprise Module for Public Cloud 15 SP2","SUSE:Linux Enterprise Module for Public Cloud 15 SP3","SUSE:Linux Enterprise Module for Public Cloud 15 SP4","SUSE:Linux Enterprise Module for Public Cloud 15 SP5","SUSE:Linux Enterprise Module for Python 3 15 SP6","SUSE:Linux Enterprise Module for Server Applications 15 SP5","openSUSE:Leap 15.2","openSUSE:Leap 15.3","openSUSE:Leap 15.4","openSUSE:Leap 15.5","openSUSE:Tumbleweed"],"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":"Buffer overflow in Brotli library","id":"CVE-2020-8927","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"canonical:ubuntu_linux","products":["canonical:ubuntu_linux","debian:debian_linux","fedoraproject:fedora","microsoft:.net","microsoft:visual_studio_2019","microsoft:visual_studio_2022","opensuse:leap"],"type":"memory_corruption","year":"2020"},"n_packages":31,"n_references":14,"next":{"headline":"Ciphertext integrity weakness in Tink","id":"CVE-2020-8929"},"packages":[{"ecosystem":"AlmaLinux:8","fixed":["1.0.6-3.el8"],"introduced":["0"],"last_affected":[],"package":"brotli","purl":"pkg:rpm/almalinux/brotli","source":"ALSA-2021:1702"},{"ecosystem":"AlmaLinux:8","fixed":["1.0.6-3.el8"],"introduced":["0"],"last_affected":[],"package":"brotli-devel","purl":"pkg:rpm/almalinux/brotli-devel","source":"ALSA-2021:1702"},{"ecosystem":"AlmaLinux:8","fixed":["1.0.6-3.el8"],"introduced":["0"],"last_affected":[],"package":"python3-brotli","purl":"pkg:rpm/almalinux/python3-brotli","source":"ALSA-2021:1702"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:1.0.6-3.el8"],"introduced":["0"],"last_affected":[],"package":"brotli-debuginfo","purl":"pkg:rpm/redhat/brotli-debuginfo","source":"RHSA-2021:1702"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:1.0.6-3.el8"],"introduced":["0"],"last_affected":[],"package":"brotli-debugsource","purl":"pkg:rpm/redhat/brotli-debugsource","source":"RHSA-2021:1702"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:1.0.6-3.el8"],"introduced":["0"],"last_affected":[],"package":"brotli-devel","purl":"pkg:rpm/redhat/brotli-devel","source":"RHSA-2021:1702"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:1.0.6-3.el8"],"introduced":["0"],"last_affected":[],"package":"python3-brotli","purl":"pkg:rpm/redhat/python3-brotli","source":"RHSA-2021:1702"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:1.0.6-3.el8"],"introduced":["0"],"last_affected":[],"package":"python3-brotli-debuginfo","purl":"pkg:rpm/redhat/python3-brotli-debuginfo","source":"RHSA-2021:1702"},{"ecosystem":"Red Hat:enterprise_linux:8::baseos","fixed":["0:1.0.6-3.el8"],"introduced":["0"],"last_affected":[],"package":"brotli","purl":"pkg:rpm/redhat/brotli","source":"RHSA-2021:1702"},{"ecosystem":"Red Hat:enterprise_linux:8::baseos","fixed":["0:1.0.6-3.el8"],"introduced":["0"],"last_affected":[],"package":"brotli-debuginfo","purl":"pkg:rpm/redhat/brotli-debuginfo","source":"RHSA-2021:1702"},{"ecosystem":"Red Hat:enterprise_linux:8::baseos","fixed":["0:1.0.6-3.el8"],"introduced":["0"],"last_affected":[],"package":"brotli-debugsource","purl":"pkg:rpm/redhat/brotli-debugsource","source":"RHSA-2021:1702"},{"ecosystem":"Red Hat:enterprise_linux:8::baseos","fixed":["0:1.0.6-3.el8"],"introduced":["0"],"last_affected":[],"package":"python3-brotli-debuginfo","purl":"pkg:rpm/redhat/python3-brotli-debuginfo","source":"RHSA-2021:1702"},{"ecosystem":"Rocky Linux:8","fixed":["0:1.0.6-3.el8"],"introduced":["0"],"last_affected":[],"package":"brotli","purl":"pkg:rpm/rocky-linux/brotli?distro=rocky-linux-8\u0026epoch=0","source":"RLSA-2021:1702"},{"ecosystem":"SUSE:Linux Enterprise Micro 5.1","fixed":["1.0.7-3.3.1"],"introduced":["0"],"last_affected":[],"package":"brotli","purl":"pkg:rpm/suse/brotli\u0026distro=SUSE%20Linux%20Enterprise%20Micro%205.1","source":"SUSE-SU-2025:01762-1"},{"ecosystem":"SUSE:Linux Enterprise Module for Basesystem 15 SP2","fixed":["1.0.7-3.3.1"],"introduced":["0"],"last_affected":[],"package":"brotli","purl":"pkg:rpm/suse/brotli\u0026distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP2","source":"SUSE-SU-2021:3942-1"},{"ecosystem":"SUSE:Linux Enterprise Module for Basesystem 15 SP3","fixed":["1.0.7-3.3.1"],"introduced":["0"],"last_affected":[],"package":"brotli","purl":"pkg:rpm/suse/brotli\u0026distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP3","source":"SUSE-SU-2021:3942-1"},{"ecosystem":"SUSE:Linux Enterprise Module for Public Cloud 12","fixed":["0.6.0-2.6.1"],"introduced":["0"],"last_affected":[],"package":"python-brotlipy","purl":"pkg:rpm/suse/python-brotlipy\u0026distro=SUSE%20Linux%20Enterprise%20Module%20for%20Public%20Cloud%2012","source":"SUSE-SU-2023:3670-1"},{"ecosystem":"SUSE:Linux Enterprise Module for Public Cloud 15 SP1","fixed":["0.7.0-150100.3.6.1"],"introduced":["0"],"last_affected":[],"package":"python-brotlipy","purl":"pkg:rpm/suse/python-brotlipy\u0026distro=SUSE%20Linux%20Enterprise%20Module%20for%20Public%20Cloud%2015%20SP1","source":"SUSE-SU-2023:3669-1"},{"ecosystem":"SUSE:Linux Enterprise Module for Public Cloud 15 SP2","fixed":["0.7.0-150100.3.6.1"],"introduced":["0"],"last_affected":[],"package":"python-brotlipy","purl":"pkg:rpm/suse/python-brotlipy\u0026distro=SUSE%20Linux%20Enterprise%20Module%20for%20Public%20Cloud%2015%20SP2","source":"SUSE-SU-2023:3669-1"},{"ecosystem":"SUSE:Linux Enterprise Module for Public Cloud 15 SP3","fixed":["0.7.0-150300.3.3.1"],"introduced":["0"],"last_affected":[],"package":"python-brotlipy","purl":"pkg:rpm/suse/python-brotlipy\u0026distro=SUSE%20Linux%20Enterprise%20Module%20for%20Public%20Cloud%2015%20SP3","source":"SUSE-SU-2023:3827-1"},{"ecosystem":"SUSE:Linux Enterprise Module for Public Cloud 15 SP4","fixed":["0.7.0-150300.3.3.1"],"introduced":["0"],"last_affected":[],"package":"python-brotlipy","purl":"pkg:rpm/suse/python-brotlipy\u0026distro=SUSE%20Linux%20Enterprise%20Module%20for%20Public%20Cloud%2015%20SP4","source":"SUSE-SU-2023:3827-1"},{"ecosystem":"SUSE:Linux Enterprise Module for Public Cloud 15 SP5","fixed":["0.7.0-150300.3.3.1"],"introduced":["0"],"last_affected":[],"package":"python-brotlipy","purl":"pkg:rpm/suse/python-brotlipy\u0026distro=SUSE%20Linux%20Enterprise%20Module%20for%20Public%20Cloud%2015%20SP5","source":"SUSE-SU-2023:3827-1"},{"ecosystem":"SUSE:Linux Enterprise Module for Python 3 15 SP6","fixed":["1.0.7-150200.3.3.1"],"introduced":["0"],"last_affected":[],"package":"python-Brotli","purl":"pkg:rpm/suse/python-Brotli\u0026distro=SUSE%20Linux%20Enterprise%20Module%20for%20Python%203%2015%20SP6","source":"SUSE-SU-2024:1968-1"},{"ecosystem":"SUSE:Linux Enterprise Module for Server Applications 15 SP5","fixed":["1.0.7-150200.3.3.1"],"introduced":["0"],"last_affected":[],"package":"python-Brotli","purl":"pkg:rpm/suse/python-Brotli\u0026distro=SUSE%20Linux%20Enterprise%20Module%20for%20Server%20Applications%2015%20SP5","source":"SUSE-SU-2024:1968-1"},{"ecosystem":"openSUSE:Leap 15.2","fixed":["1.0.9-lp152.2.3.1"],"introduced":["0"],"last_affected":[],"package":"brotli","purl":"pkg:rpm/opensuse/brotli\u0026distro=openSUSE%20Leap%2015.2","source":"openSUSE-SU-2020:1578-1"},{"ecosystem":"openSUSE:Leap 15.3","fixed":["1.0.7-3.3.1"],"introduced":["0"],"last_affected":[],"package":"brotli","purl":"pkg:rpm/opensuse/brotli\u0026distro=openSUSE%20Leap%2015.3","source":"openSUSE-SU-2021:3942-1"},{"ecosystem":"openSUSE:Leap 15.4","fixed":["0.7.0-150300.3.3.1"],"introduced":["0"],"last_affected":[],"package":"python-brotlipy","purl":"pkg:rpm/opensuse/python-brotlipy\u0026distro=openSUSE%20Leap%2015.4","source":"SUSE-SU-2023:3827-1"},{"ecosystem":"openSUSE:Leap 15.5","fixed":["1.0.7-150200.3.3.1"],"introduced":["0"],"last_affected":[],"package":"python-Brotli","purl":"pkg:rpm/opensuse/python-Brotli\u0026distro=openSUSE%20Leap%2015.5","source":"SUSE-SU-2024:1968-1"},{"ecosystem":"openSUSE:Leap 15.5","fixed":["0.7.0-150300.3.3.1"],"introduced":["0"],"last_affected":[],"package":"python-brotlipy","purl":"pkg:rpm/opensuse/python-brotlipy\u0026distro=openSUSE%20Leap%2015.5","source":"SUSE-SU-2023:3827-1"},{"ecosystem":"openSUSE:Tumbleweed","fixed":["20220105-1.1"],"introduced":["0"],"last_affected":[],"package":"cargo-audit-advisory-db","purl":"pkg:rpm/opensuse/cargo-audit-advisory-db\u0026distro=openSUSE%20Tumbleweed","source":"openSUSE-SU-2024:11708-1"},{"ecosystem":"openSUSE:Tumbleweed","fixed":["1.2.0-1.6"],"introduced":["0"],"last_affected":[],"package":"python-Brotli","purl":"pkg:rpm/opensuse/python-Brotli\u0026distro=openSUSE%20Tumbleweed","source":"openSUSE-SU-2026:11988-1"}],"prev":{"headline":"XSS in Dart","id":"CVE-2020-8923"},"products":["Brotli"],"published":"2020-09-15","related":[{"cvss_score":9.8,"headline":"SaltStack Salt Authentication Bypass","id":"CVE-2020-11651","kev_date_added":"2021-11-03","published":"2020-04-30"},{"cvss_score":9.8,"headline":"OpenSMTPD Remote Code Execution","id":"CVE-2020-7247","kev_date_added":"2022-03-25","published":"2020-01-29"},{"cvss_score":9.8,"headline":"Exim Out-of-bounds Write","id":"CVE-2019-16928","kev_date_added":"2022-03-03","published":"2019-09-27"},{"cvss_score":9.8,"headline":"Exim Buffer Overflow","id":"CVE-2018-6789","kev_date_added":"2021-11-03","published":"2018-02-08"},{"cvss_score":9.8,"headline":"Oracle Java SE and Java SE Embedded Remote Code Execution","id":"CVE-2015-2590","kev_date_added":"2022-03-03","published":"2015-07-16"},{"cvss_score":9.8,"headline":"Oracle JRE Remote Code Execution","id":"CVE-2013-0422","kev_date_added":"2022-05-25","published":"2013-01-10"},{"cvss_score":9.8,"headline":"Oracle Java SE Runtime Environment (JRE) Arbitrary Code Execution","id":"CVE-2011-3544","kev_date_added":"2022-03-03","published":"2011-10-19"}],"sources":[{"class":"attribution","licence":"MIT","name":"AlmaLinux","prefix":"ALSA"},{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"Red Hat","prefix":"RHSA"},{"class":"attribution","licence":"BSD","name":"Rocky Linux","prefix":"RLSA"},{"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":"yes","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-05-29","vendors":["Google LLC"]},"summary":"An attacker can cause a denial of service by triggering a buffer overflow in the Brotli library during one-shot decompression of large data chunks.","url":"https://insights.sbomify.com/CVE-2020-8927/"}