{"answers":{"affected":"It affects 3 products.","exploited":"There is no known exploitation of CVE-2018-18751 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2018-18751 is a critical use after free vulnerability in Canonical Ubuntu Linux, published on 28 Oct 2018. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2018-18751 and fix it if it is affected.\n\nWhat it is: CVE-2018-18751 is a critical use after free vulnerability in Canonical Ubuntu Linux, published on 28 Oct 2018. 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-2018-18751 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-2018-18751/ (Markdown: https://insights.sbomify.com/CVE-2018-18751/index.md)","id":"CVE-2018-18751","markdown":"https://insights.sbomify.com/CVE-2018-18751/index.md","name":"CVE-2018-18751","record":{"aliases":["ALPINE-CVE-2018-18751","ALSA-2019:3643","DEBIAN-CVE-2018-18751","GHSA-3vvp-8645-4qmr","JLSEC-2025-174","MGASA-2018-0464","RHSA-2019:3643","RHSA-2020:1138","RHSA-2020:2485","RHSA-2020:2846","RLSA-2019:3643","SUSE-SU-2020:2296-1","SUSE-SU-2021:4060-1","UBUNTU-CVE-2018-18751","USN-3815-1","openSUSE-SU-2020:1270-1","openSUSE-SU-2020:1278-1","openSUSE-SU-2020:1385-1"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service","code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"GNU gettext library","requires_auth":"none","summary":"A double free vulnerability in GNU gettext allows attackers to cause denial of service or potentially execute arbitrary code via crafted input.","user_interaction":"not_required","vuln_class":"use_after_free"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"ubuntu_linux","vendor":"canonical"},{"product":"gettext","vendor":"gnu"},{"product":"enterprise_linux","vendor":"redhat"}],"cvss":{"score":9.8,"severity":"critical","source":"nvd","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.0"},"cwes":[{"id":"CWE-415","name":"Double Free"}],"description":"An issue was discovered in GNU gettext 0.19.8. There is a double free in default_add_message in read-catalog.c, related to an invalid free in po_gram_parse in po-gram-gen.y, as demonstrated by lt-msgfmt.","ecosystems":["AlmaLinux:8","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::baseos","Red Hat:rhel_eus:7.6::computenode","Red Hat:rhel_eus:7.6::server","Red Hat:rhel_eus:7.7::computenode","Red Hat:rhel_eus:7.7::server","Rocky Linux:8","SUSE:Linux Enterprise Module for Basesystem 15 SP1","SUSE:Linux Enterprise Module for Basesystem 15 SP2","SUSE:Linux Enterprise Server 12 SP5","SUSE:Linux Enterprise Server for SAP Applications 12 SP5","SUSE:Package Hub 15 SP1","openSUSE:Leap 15.1","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":"Use after free in n/a","id":"CVE-2018-18751","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"canonical:ubuntu_linux","products":["canonical:ubuntu_linux","redhat:enterprise_linux"],"type":"use_after_free","year":"2018"},"n_packages":74,"n_references":8,"next":{"headline":"File upload in n/a","id":"CVE-2018-18752"},"packages":[{"ecosystem":"AlmaLinux:8","fixed":["0.19.8.1-17.el8"],"introduced":["0"],"last_affected":[],"package":"gettext","purl":"pkg:rpm/almalinux/gettext","source":"ALSA-2019:3643"},{"ecosystem":"AlmaLinux:8","fixed":["0.19.8.1-17.el8"],"introduced":["0"],"last_affected":[],"package":"gettext-common-devel","purl":"pkg:rpm/almalinux/gettext-common-devel","source":"ALSA-2019:3643"},{"ecosystem":"AlmaLinux:8","fixed":["0.19.8.1-17.el8"],"introduced":["0"],"last_affected":[],"package":"gettext-devel","purl":"pkg:rpm/almalinux/gettext-devel","source":"ALSA-2019:3643"},{"ecosystem":"AlmaLinux:8","fixed":["0.19.8.1-17.el8"],"introduced":["0"],"last_affected":[],"package":"gettext-libs","purl":"pkg:rpm/almalinux/gettext-libs","source":"ALSA-2019:3643"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["0:0.19.8.1-3.el7"],"introduced":["0"],"last_affected":[],"package":"emacs-gettext","purl":"pkg:rpm/redhat/emacs-gettext","source":"RHSA-2020:1138"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["0:0.19.8.1-3.el7"],"introduced":["0"],"last_affected":[],"package":"gettext","purl":"pkg:rpm/redhat/gettext","source":"RHSA-2020:1138"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["0:0.19.8.1-3.el7"],"introduced":["0"],"last_affected":[],"package":"gettext-common-devel","purl":"pkg:rpm/redhat/gettext-common-devel","source":"RHSA-2020:1138"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["0:0.19.8.1-3.el7"],"introduced":["0"],"last_affected":[],"package":"gettext-debuginfo","purl":"pkg:rpm/redhat/gettext-debuginfo","source":"RHSA-2020:1138"},{"ecosystem":"Red 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Hat:enterprise_linux:8::baseos","fixed":["0:0.19.8.1-17.el8"],"introduced":["0"],"last_affected":[],"package":"gettext","purl":"pkg:rpm/redhat/gettext","source":"RHSA-2019:3643"},{"ecosystem":"Red Hat:enterprise_linux:8::baseos","fixed":["0:0.19.8.1-17.el8"],"introduced":["0"],"last_affected":[],"package":"gettext-common-devel","purl":"pkg:rpm/redhat/gettext-common-devel","source":"RHSA-2019:3643"},{"ecosystem":"Red Hat:enterprise_linux:8::baseos","fixed":["0:0.19.8.1-17.el8"],"introduced":["0"],"last_affected":[],"package":"gettext-debuginfo","purl":"pkg:rpm/redhat/gettext-debuginfo","source":"RHSA-2019:3643"},{"ecosystem":"Red Hat:enterprise_linux:8::baseos","fixed":["0:0.19.8.1-17.el8"],"introduced":["0"],"last_affected":[],"package":"gettext-debugsource","purl":"pkg:rpm/redhat/gettext-debugsource","source":"RHSA-2019:3643"},{"ecosystem":"Red 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Hat:rhel_eus:7.6::computenode","fixed":["0:0.19.8.1-3.el7_6"],"introduced":["0"],"last_affected":[],"package":"emacs-gettext","purl":"pkg:rpm/redhat/emacs-gettext","source":"RHSA-2020:2846"},{"ecosystem":"Red Hat:rhel_eus:7.6::computenode","fixed":["0:0.19.8.1-3.el7_6"],"introduced":["0"],"last_affected":[],"package":"gettext","purl":"pkg:rpm/redhat/gettext","source":"RHSA-2020:2846"},{"ecosystem":"Red Hat:rhel_eus:7.6::computenode","fixed":["0:0.19.8.1-3.el7_6"],"introduced":["0"],"last_affected":[],"package":"gettext-common-devel","purl":"pkg:rpm/redhat/gettext-common-devel","source":"RHSA-2020:2846"},{"ecosystem":"Red Hat:rhel_eus:7.6::computenode","fixed":["0:0.19.8.1-3.el7_6"],"introduced":["0"],"last_affected":[],"package":"gettext-debuginfo","purl":"pkg:rpm/redhat/gettext-debuginfo","source":"RHSA-2020:2846"}],"prev":{"headline":"Integer overflow in n/a","id":"CVE-2018-18749"},"products":["n/a"],"published":"2018-10-28","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":"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":"2024-08-05","vendors":["n/a"]},"summary":"A double free vulnerability in GNU gettext allows attackers to cause denial of service or potentially execute arbitrary code via crafted input.","url":"https://insights.sbomify.com/CVE-2018-18751/"}