{"answers":{"affected":"It affects 4 products.","exploited":"There is no known exploitation of CVE-2019-19126 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2019-19126 is a low-severity vulnerability in Canonical Ubuntu Linux, published on 19 Nov 2019. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2019-19126 and fix it if it is affected.\n\nWhat it is: CVE-2019-19126 is a low-severity vulnerability in Canonical Ubuntu Linux, published on 19 Nov 2019. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2019-19126 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-2019-19126/ (Markdown: https://insights.sbomify.com/CVE-2019-19126/index.md)","id":"CVE-2019-19126","markdown":"https://insights.sbomify.com/CVE-2019-19126/index.md","name":"CVE-2019-19126","record":{"aliases":["DEBIAN-CVE-2019-19126","GHSA-p4p6-gwhq-q5q7","MGASA-2019-0349","RHSA-2020:1828","RHSA-2020:3861","SUSE-SU-2020:0262-1","UBUNTU-CVE-2019-19126"],"analysis":{"component_type":"operating_system","fix_type":"upgrade","impacts":["security_bypass"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"GNU C Library","requires_auth":"low_privilege","summary":"Local attackers can bypass ASLR in setuid programs by exploiting LD_PREFER_MAP_32BIT_EXEC handling in glibc on x86-64 systems.","user_interaction":"not_required","vuln_class":"security_feature_bypass"},"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":"glibc","vendor":"gnu"}],"cvss":{"score":3.3,"severity":"low","source":"nvd","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","version":"3.1"},"cwes":[{"id":"CWE-665","name":"Improper Initialization"}],"description":"On the x86-64 architecture, the GNU C Library (aka glibc) before 2.31 fails to ignore the LD_PREFER_MAP_32BIT_EXEC environment variable during program execution after a security transition, allowing local attackers to restrict the possible mapping addresses for loaded libraries and thus bypass ASLR for a setuid program.","ecosystems":["Red Hat:enterprise_linux:7::client","Red Hat:enterprise_linux:7::computenode","Red Hat:enterprise_linux:7::server","Red Hat:enterprise_linux:7::workstation","Red Hat:enterprise_linux:8::appstream","Red Hat:enterprise_linux:8::baseos","Red Hat:enterprise_linux:8::crb","SUSE:Linux Enterprise Module for Basesystem 15","SUSE:Linux Enterprise Module for Basesystem 15 SP1","SUSE:Linux Enterprise Module for Development Tools 15","SUSE:Linux Enterprise Module for Development Tools 15 SP1"],"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":"Security feature bypass in n/a","id":"CVE-2019-19126","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"canonical:ubuntu_linux","products":["canonical:ubuntu_linux","debian:debian_linux","fedoraproject:fedora","gnu:glibc"],"type":"security_feature_bypass","year":"2019"},"n_packages":258,"n_references":5,"next":{"headline":"Auth bypass in n/a","id":"CVE-2019-19127"},"packages":[{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["0:2.17-317.el7"],"introduced":["0"],"last_affected":[],"package":"glibc","purl":"pkg:rpm/redhat/glibc","source":"RHSA-2020:3861"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["0:2.17-317.el7"],"introduced":["0"],"last_affected":[],"package":"glibc-common","purl":"pkg:rpm/redhat/glibc-common","source":"RHSA-2020:3861"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["0:2.17-317.el7"],"introduced":["0"],"last_affected":[],"package":"glibc-debuginfo","purl":"pkg:rpm/redhat/glibc-debuginfo","source":"RHSA-2020:3861"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["0:2.17-317.el7"],"introduced":["0"],"last_affected":[],"package":"glibc-debuginfo-common","purl":"pkg:rpm/redhat/glibc-debuginfo-common","source":"RHSA-2020:3861"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["0:2.17-317.el7"],"introduced":["0"],"last_affected":[],"package":"glibc-devel","purl":"pkg:rpm/redhat/glibc-devel","source":"RHSA-2020:3861"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["0:2.17-317.el7"],"introduced":["0"],"last_affected":[],"package":"glibc-headers","purl":"pkg:rpm/redhat/glibc-headers","source":"RHSA-2020:3861"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["0:2.17-317.el7"],"introduced":["0"],"last_affected":[],"package":"glibc-static","purl":"pkg:rpm/redhat/glibc-static","source":"RHSA-2020:3861"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["0:2.17-317.el7"],"introduced":["0"],"last_affected":[],"package":"glibc-utils","purl":"pkg:rpm/redhat/glibc-utils","source":"RHSA-2020:3861"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["0:2.17-317.el7"],"introduced":["0"],"last_affected":[],"package":"nscd","purl":"pkg:rpm/redhat/nscd","source":"RHSA-2020:3861"},{"ecosystem":"Red Hat:enterprise_linux:7::computenode","fixed":["0:2.17-317.el7"],"introduced":["0"],"last_affected":[],"package":"glibc","purl":"pkg:rpm/redhat/glibc","source":"RHSA-2020:3861"},{"ecosystem":"Red Hat:enterprise_linux:7::computenode","fixed":["0:2.17-317.el7"],"introduced":["0"],"last_affected":[],"package":"glibc-common","purl":"pkg:rpm/redhat/glibc-common","source":"RHSA-2020:3861"},{"ecosystem":"Red Hat:enterprise_linux:7::computenode","fixed":["0:2.17-317.el7"],"introduced":["0"],"last_affected":[],"package":"glibc-debuginfo","purl":"pkg:rpm/redhat/glibc-debuginfo","source":"RHSA-2020:3861"},{"ecosystem":"Red Hat:enterprise_linux:7::computenode","fixed":["0:2.17-317.el7"],"introduced":["0"],"last_affected":[],"package":"glibc-debuginfo-common","purl":"pkg:rpm/redhat/glibc-debuginfo-common","source":"RHSA-2020:3861"},{"ecosystem":"Red Hat:enterprise_linux:7::computenode","fixed":["0:2.17-317.el7"],"introduced":["0"],"last_affected":[],"package":"glibc-devel","purl":"pkg:rpm/redhat/glibc-devel","source":"RHSA-2020:3861"},{"ecosystem":"Red Hat:enterprise_linux:7::computenode","fixed":["0:2.17-317.el7"],"introduced":["0"],"last_affected":[],"package":"glibc-headers","purl":"pkg:rpm/redhat/glibc-headers","source":"RHSA-2020:3861"},{"ecosystem":"Red Hat:enterprise_linux:7::computenode","fixed":["0:2.17-317.el7"],"introduced":["0"],"last_affected":[],"package":"glibc-static","purl":"pkg:rpm/redhat/glibc-static","source":"RHSA-2020:3861"},{"ecosystem":"Red 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Hat:enterprise_linux:7::server","fixed":["0:2.17-317.el7"],"introduced":["0"],"last_affected":[],"package":"glibc-static","purl":"pkg:rpm/redhat/glibc-static","source":"RHSA-2020:3861"},{"ecosystem":"Red Hat:enterprise_linux:7::server","fixed":["0:2.17-317.el7"],"introduced":["0"],"last_affected":[],"package":"glibc-utils","purl":"pkg:rpm/redhat/glibc-utils","source":"RHSA-2020:3861"},{"ecosystem":"Red Hat:enterprise_linux:7::server","fixed":["0:2.17-317.el7"],"introduced":["0"],"last_affected":[],"package":"nscd","purl":"pkg:rpm/redhat/nscd","source":"RHSA-2020:3861"},{"ecosystem":"Red Hat:enterprise_linux:7::workstation","fixed":["0:2.17-317.el7"],"introduced":["0"],"last_affected":[],"package":"glibc","purl":"pkg:rpm/redhat/glibc","source":"RHSA-2020:3861"},{"ecosystem":"Red Hat:enterprise_linux:7::workstation","fixed":["0:2.17-317.el7"],"introduced":["0"],"last_affected":[],"package":"glibc-common","purl":"pkg:rpm/redhat/glibc-common","source":"RHSA-2020:3861"},{"ecosystem":"Red Hat:enterprise_linux:7::workstation","fixed":["0:2.17-317.el7"],"introduced":["0"],"last_affected":[],"package":"glibc-debuginfo","purl":"pkg:rpm/redhat/glibc-debuginfo","source":"RHSA-2020:3861"},{"ecosystem":"Red Hat:enterprise_linux:7::workstation","fixed":["0:2.17-317.el7"],"introduced":["0"],"last_affected":[],"package":"glibc-debuginfo-common","purl":"pkg:rpm/redhat/glibc-debuginfo-common","source":"RHSA-2020:3861"},{"ecosystem":"Red Hat:enterprise_linux:7::workstation","fixed":["0:2.17-317.el7"],"introduced":["0"],"last_affected":[],"package":"glibc-devel","purl":"pkg:rpm/redhat/glibc-devel","source":"RHSA-2020:3861"},{"ecosystem":"Red Hat:enterprise_linux:7::workstation","fixed":["0:2.17-317.el7"],"introduced":["0"],"last_affected":[],"package":"glibc-headers","purl":"pkg:rpm/redhat/glibc-headers","source":"RHSA-2020:3861"},{"ecosystem":"Red Hat:enterprise_linux:7::workstation","fixed":["0:2.17-317.el7"],"introduced":["0"],"last_affected":[],"package":"glibc-static","purl":"pkg:rpm/redhat/glibc-static","source":"RHSA-2020:3861"},{"ecosystem":"Red Hat:enterprise_linux:7::workstation","fixed":["0:2.17-317.el7"],"introduced":["0"],"last_affected":[],"package":"glibc-utils","purl":"pkg:rpm/redhat/glibc-utils","source":"RHSA-2020:3861"},{"ecosystem":"Red Hat:enterprise_linux:7::workstation","fixed":["0:2.17-317.el7"],"introduced":["0"],"last_affected":[],"package":"nscd","purl":"pkg:rpm/redhat/nscd","source":"RHSA-2020:3861"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:2.28-101.el8"],"introduced":["0"],"last_affected":[],"package":"compat-libpthread-nonshared","purl":"pkg:rpm/redhat/compat-libpthread-nonshared","source":"RHSA-2020:1828"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:2.28-101.el8"],"introduced":["0"],"last_affected":[],"package":"glibc-debuginfo","purl":"pkg:rpm/redhat/glibc-debuginfo","source":"RHSA-2020:1828"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:2.28-101.el8"],"introduced":["0"],"last_affected":[],"package":"glibc-debuginfo-common","purl":"pkg:rpm/redhat/glibc-debuginfo-common","source":"RHSA-2020:1828"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:2.28-101.el8"],"introduced":["0"],"last_affected":[],"package":"glibc-utils","purl":"pkg:rpm/redhat/glibc-utils","source":"RHSA-2020:1828"}],"prev":{"headline":"DO NOT USE THIS CANDIDATE NUMBER.","id":"CVE-2019-19123"},"products":["n/a"],"published":"2019-11-19","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":"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":"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":"2026-10-14","vendors":["n/a"]},"summary":"Local attackers can bypass ASLR in setuid programs by exploiting LD_PREFER_MAP_32BIT_EXEC handling in glibc on x86-64 systems.","url":"https://insights.sbomify.com/CVE-2019-19126/"}