{"answers":{"affected":"1 open source package ship an affected version, including haproxy. It affects 6 products.","exploited":"There is no known exploitation of CVE-2020-11100 in the wild and no public exploit code.","fix":"Upgrade haproxy to 2.1.4 or later.","what":"CVE-2020-11100 is a high-severity memory corruption vulnerability in Canonical Ubuntu Linux, published on 2 Apr 2020. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2020-11100 and fix it if it is affected.\n\nWhat it is: CVE-2020-11100 is a high-severity memory corruption vulnerability in Canonical Ubuntu Linux, published on 2 Apr 2020. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2020-11100 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- haproxy (Bitnami): affected from 1.8.0; fixed in 2.1.4\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-2020-11100/ (Markdown: https://insights.sbomify.com/CVE-2020-11100/index.md)","id":"CVE-2020-11100","markdown":"https://insights.sbomify.com/CVE-2020-11100/index.md","name":"CVE-2020-11100","record":{"aliases":["ALPINE-CVE-2020-11100","BIT-haproxy-2020-11100","CLEANSTART-2026-RO35249","DEBIAN-CVE-2020-11100","DSA-4649-1","GHSA-3xcv-57q9-hrj2","RHSA-2020:1288","RHSA-2020:1289","RHSA-2020:1290","SUSE-SU-2020:0851-1","SUSE-SU-2020:0852-1","UBUNTU-CVE-2020-11100","USN-4321-1","openSUSE-SU-2020:0444-1"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"HAProxy load balancer","requires_auth":"low_privilege","summary":"A remote attacker can achieve arbitrary code execution by sending a crafted HTTP/2 request that triggers a heap buffer overflow in the HPACK decoder.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"ubuntu_linux","vendor":"canonical"},{"product":"debian_linux","vendor":"debian"},{"product":"fedora","vendor":"fedoraproject"},{"product":"haproxy","vendor":"haproxy"},{"product":"leap","vendor":"opensuse"},{"product":"openshift_container_platform","vendor":"redhat"}],"cvss":{"score":8.8,"severity":"high","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-787","name":"Out-of-bounds Write"}],"description":"In hpack_dht_insert in hpack-tbl.c in the HPACK decoder in HAProxy 1.8 through 2.x before 2.1.4, a remote attacker can write arbitrary bytes around a certain location on the heap via a crafted HTTP/2 request, possibly causing remote code execution.","ecosystems":["Bitnami","Red Hat:enterprise_linux:8::appstream","Red Hat:rhel_e4s:8.0::appstream","Red Hat:rhel_software_collections:3::el7","SUSE:Linux Enterprise High Availability Extension 15","SUSE:Linux Enterprise High Availability Extension 15 SP1","openSUSE:Leap 15.1"],"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":"Memory corruption in n/a","id":"CVE-2020-11100","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Bitnami","product":"canonical:ubuntu_linux","products":["canonical:ubuntu_linux","debian:debian_linux","fedoraproject:fedora","opensuse:leap","redhat:openshift_container_platform"],"type":"memory_corruption","year":"2020"},"n_packages":13,"n_references":14,"next":{"headline":"Auth bypass in n/a","id":"CVE-2020-11101"},"packages":[{"ecosystem":"Bitnami","fixed":["2.1.4"],"introduced":["1.8.0"],"last_affected":[],"package":"haproxy","purl":"pkg:bitnami/haproxy","source":"BIT-haproxy-2020-11100"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:1.8.15-6.el8_1.1"],"introduced":["0"],"last_affected":[],"package":"haproxy","purl":"pkg:rpm/redhat/haproxy","source":"RHSA-2020:1288"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:1.8.15-6.el8_1.1"],"introduced":["0"],"last_affected":[],"package":"haproxy-debuginfo","purl":"pkg:rpm/redhat/haproxy-debuginfo","source":"RHSA-2020:1288"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:1.8.15-6.el8_1.1"],"introduced":["0"],"last_affected":[],"package":"haproxy-debugsource","purl":"pkg:rpm/redhat/haproxy-debugsource","source":"RHSA-2020:1288"},{"ecosystem":"Red Hat:rhel_e4s:8.0::appstream","fixed":["0:1.8.15-5.el8_0.1"],"introduced":["0"],"last_affected":[],"package":"haproxy","purl":"pkg:rpm/redhat/haproxy","source":"RHSA-2020:1289"},{"ecosystem":"Red Hat:rhel_e4s:8.0::appstream","fixed":["0:1.8.15-5.el8_0.1"],"introduced":["0"],"last_affected":[],"package":"haproxy-debuginfo","purl":"pkg:rpm/redhat/haproxy-debuginfo","source":"RHSA-2020:1289"},{"ecosystem":"Red Hat:rhel_e4s:8.0::appstream","fixed":["0:1.8.15-5.el8_0.1"],"introduced":["0"],"last_affected":[],"package":"haproxy-debugsource","purl":"pkg:rpm/redhat/haproxy-debugsource","source":"RHSA-2020:1289"},{"ecosystem":"Red Hat:rhel_software_collections:3::el7","fixed":["0:1.8.17-1.el7.1"],"introduced":["0"],"last_affected":[],"package":"rh-haproxy18-haproxy","purl":"pkg:rpm/redhat/rh-haproxy18-haproxy","source":"RHSA-2020:1290"},{"ecosystem":"Red Hat:rhel_software_collections:3::el7","fixed":["0:1.8.17-1.el7.1"],"introduced":["0"],"last_affected":[],"package":"rh-haproxy18-haproxy-debuginfo","purl":"pkg:rpm/redhat/rh-haproxy18-haproxy-debuginfo","source":"RHSA-2020:1290"},{"ecosystem":"Red Hat:rhel_software_collections:3::el7","fixed":["0:1.8.17-1.el7.1"],"introduced":["0"],"last_affected":[],"package":"rh-haproxy18-haproxy-syspaths","purl":"pkg:rpm/redhat/rh-haproxy18-haproxy-syspaths","source":"RHSA-2020:1290"},{"ecosystem":"SUSE:Linux Enterprise High Availability Extension 15","fixed":["2.0.10+git0.ac198b92-3.19.1"],"introduced":["0"],"last_affected":[],"package":"haproxy","purl":"pkg:rpm/suse/haproxy\u0026distro=SUSE%20Linux%20Enterprise%20High%20Availability%20Extension%2015","source":"SUSE-SU-2020:0852-1"},{"ecosystem":"SUSE:Linux Enterprise High Availability Extension 15 SP1","fixed":["2.0.10+git0.ac198b92-8.12.1"],"introduced":["0"],"last_affected":[],"package":"haproxy","purl":"pkg:rpm/suse/haproxy\u0026distro=SUSE%20Linux%20Enterprise%20High%20Availability%20Extension%2015%20SP1","source":"SUSE-SU-2020:0851-1"},{"ecosystem":"openSUSE:Leap 15.1","fixed":["2.0.10+git0.ac198b92-lp151.2.9.1"],"introduced":["0"],"last_affected":[],"package":"haproxy","purl":"pkg:rpm/opensuse/haproxy\u0026distro=openSUSE%20Leap%2015.1","source":"openSUSE-SU-2020:0444-1"}],"prev":{"headline":"OOB Read in license_read_new_or_upgrade_license_packet in FreeRDP","id":"CVE-2020-11099"},"products":["n/a"],"published":"2020-04-02","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":"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":"Red Hat","prefix":"RHSA"},{"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":"2024-08-04","vendors":["n/a"]},"summary":"A remote attacker can achieve arbitrary code execution by sending a crafted HTTP/2 request that triggers a heap buffer overflow in the HPACK decoder.","url":"https://insights.sbomify.com/CVE-2020-11100/"}