{"answers":{"affected":"It affects 4 products.","exploited":"There is no known exploitation of CVE-2019-3877 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2019-3877 is a medium-severity vulnerability in Canonical Ubuntu Linux, published on 27 Mar 2019. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2019-3877 and fix it if it is affected.\n\nWhat it is: CVE-2019-3877 is a medium-severity vulnerability in Canonical Ubuntu Linux, published on 27 Mar 2019. 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-2019-3877 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-2019-3877/ (Markdown: https://insights.sbomify.com/CVE-2019-3877/index.md)","id":"CVE-2019-3877","markdown":"https://insights.sbomify.com/CVE-2019-3877/index.md","name":"CVE-2019-3877","record":{"aliases":["DEBIAN-CVE-2019-3877","GHSA-qr9h-f4fq-2h85","RHSA-2019:3421","UBUNTU-CVE-2019-3877"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"Apache authentication module","requires_auth":"none","summary":"An open redirect in mod_auth_mellon allows attackers to bypass URL validation via backslash manipulation, potentially leading to phishing or credential theft.","user_interaction":"not_required","vuln_class":"open_redirect"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"redhat","cpe":[{"product":"ubuntu_linux","vendor":"canonical"},{"product":"fedora","vendor":"fedoraproject"},{"product":"mod_auth_mellon","vendor":"mod_auth_mellon_project"},{"product":"enterprise_linux","vendor":"redhat"}],"cvss":{"score":5.8,"severity":"medium","source":"cna","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N","version":"3.0"},"cwes":[{"id":"CWE-601","name":"URL Redirection to Untrusted Site"}],"description":"A vulnerability was found in mod_auth_mellon before v0.14.2. An open redirect in the logout URL allows requests with backslashes to pass through by assuming that it is a relative URL, while the browsers silently convert backslash characters into forward slashes treating them as an absolute URL. This mismatch allows an attacker to bypass the redirect URL validation logic in apr_uri_parse function.","ecosystems":["Red Hat:enterprise_linux:8::appstream"],"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":"Open redirect in mod auth mellon","id":"CVE-2019-3877","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"canonical:ubuntu_linux","products":["canonical:ubuntu_linux","fedoraproject:fedora","redhat:enterprise_linux"],"type":"open_redirect","year":"2019"},"n_packages":5,"n_references":8,"next":{"headline":"Auth bypass in mod auth mellon","id":"CVE-2019-3878"},"packages":[{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:0.14.0-9.el8"],"introduced":["0"],"last_affected":[],"package":"mod_auth_mellon","purl":"pkg:rpm/redhat/mod_auth_mellon","source":"RHSA-2019:3421"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:0.14.0-9.el8"],"introduced":["0"],"last_affected":[],"package":"mod_auth_mellon-debuginfo","purl":"pkg:rpm/redhat/mod_auth_mellon-debuginfo","source":"RHSA-2019:3421"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:0.14.0-9.el8"],"introduced":["0"],"last_affected":[],"package":"mod_auth_mellon-debugsource","purl":"pkg:rpm/redhat/mod_auth_mellon-debugsource","source":"RHSA-2019:3421"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:0.14.0-9.el8"],"introduced":["0"],"last_affected":[],"package":"mod_auth_mellon-diagnostics","purl":"pkg:rpm/redhat/mod_auth_mellon-diagnostics","source":"RHSA-2019:3421"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:0.14.0-9.el8"],"introduced":["0"],"last_affected":[],"package":"mod_auth_mellon-diagnostics-debuginfo","purl":"pkg:rpm/redhat/mod_auth_mellon-diagnostics-debuginfo","source":"RHSA-2019:3421"}],"prev":{"headline":"Cross-site request forgery in web-console","id":"CVE-2019-3876"},"products":["mod_auth_mellon"],"published":"2019-03-27","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":"2024-08-04","vendors":["uninett"]},"summary":"An open redirect in mod_auth_mellon allows attackers to bypass URL validation via backslash manipulation, potentially leading to phishing or credential theft.","url":"https://insights.sbomify.com/CVE-2019-3877/"}