{"answers":{"affected":"It affects 4 products.","exploited":"There is no known exploitation of CVE-2018-14618 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2018-14618 is a high-severity vulnerability in Canonical Ubuntu Linux, published on 5 Sep 2018. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2018-14618 and fix it if it is affected.\n\nWhat it is: CVE-2018-14618 is a high-severity vulnerability in Canonical Ubuntu Linux, published on 5 Sep 2018. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2018-14618 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-2018-14618/ (Markdown: https://insights.sbomify.com/CVE-2018-14618/index.md)","id":"CVE-2018-14618","markdown":"https://insights.sbomify.com/CVE-2018-14618/index.md","name":"CVE-2018-14618","record":{"aliases":["ALPINE-CVE-2018-14618","CLEANSTART-2026-RL06903","CURL-CVE-2018-14618","DEBIAN-CVE-2018-14618","DLA-1498-1","DSA-4286-1","GHSA-4mp9-8964-jxmg","RHSA-2019:1880","SUSE-SU-2018:2714-1","SUSE-SU-2018:2715-1","SUSE-SU-2018:2717-1","UBUNTU-CVE-2018-14618","USN-3765-1"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["code_execution","denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"curl library","requires_auth":"none","summary":"An integer overflow in curl's NTLM authentication allows heap buffer overflows, potentially leading to code execution or denial of service.","user_interaction":"required","vuln_class":"integer_overflow"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"redhat","cpe":[{"product":"ubuntu_linux","vendor":"canonical"},{"product":"debian_linux","vendor":"debian"},{"product":"libcurl","vendor":"haxx"},{"product":"enterprise_linux","vendor":"redhat"}],"cvss":{"score":7.5,"severity":"high","source":"cna","vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H","version":"3.0"},"cwes":[{"id":"CWE-190","name":"Integer Overflow or Wraparound"},{"id":"CWE-131","name":"Incorrect Calculation of Buffer Size"},{"id":"CWE-122","name":"Heap-based Buffer Overflow"}],"description":"curl before version 7.61.1 is vulnerable to a buffer overrun in the NTLM authentication code. The internal function Curl_ntlm_core_mk_nt_hash multiplies the length of the password by two (SUM) to figure out how large temporary storage area to allocate from the heap. The length value is then subsequently used to iterate over the password and generate output into the allocated storage buffer. On systems with a 32 bit size_t, the math to calculate SUM triggers an integer overflow when the password length exceeds 2GB (2^31 bytes). This integer overflow usually causes a very small buffer to actually get allocated instead of the intended very huge one, making the use of that buffer end up in a heap buffer overflow. (This bug is almost identical to CVE-2017-8816.)","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","SUSE:Linux Enterprise Desktop 12 SP3","SUSE:Linux Enterprise Module for Basesystem 15","SUSE:Linux Enterprise Server 11 SP4","SUSE:Linux Enterprise Server 11-SECURITY","SUSE:Linux Enterprise Server 12 SP3","SUSE:Linux Enterprise Server for SAP Applications 11 SP4","SUSE:Linux Enterprise Server for SAP Applications 12 SP3","SUSE:Linux Enterprise Software Development Kit 11 SP4","SUSE:Linux Enterprise Software Development Kit 12 SP3"],"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":"Integer overflow in curl","id":"CVE-2018-14618","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"canonical:ubuntu_linux","products":["canonical:ubuntu_linux","debian:debian_linux","haxx:libcurl","redhat:enterprise_linux"],"type":"integer_overflow","year":"2018"},"n_packages":25,"n_references":11,"next":{"headline":"Use after free in kernel","id":"CVE-2018-14619"},"packages":[{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["0:7.29.0-51.el7_6.3"],"introduced":["0"],"last_affected":[],"package":"curl","purl":"pkg:rpm/redhat/curl","source":"RHSA-2019:1880"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["0:7.29.0-51.el7_6.3"],"introduced":["0"],"last_affected":[],"package":"curl-debuginfo","purl":"pkg:rpm/redhat/curl-debuginfo","source":"RHSA-2019:1880"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["0:7.29.0-51.el7_6.3"],"introduced":["0"],"last_affected":[],"package":"libcurl","purl":"pkg:rpm/redhat/libcurl","source":"RHSA-2019:1880"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["0:7.29.0-51.el7_6.3"],"introduced":["0"],"last_affected":[],"package":"libcurl-devel","purl":"pkg:rpm/redhat/libcurl-devel","source":"RHSA-2019:1880"},{"ecosystem":"Red Hat:enterprise_linux:7::computenode","fixed":["0:7.29.0-51.el7_6.3"],"introduced":["0"],"last_affected":[],"package":"curl","purl":"pkg:rpm/redhat/curl","source":"RHSA-2019:1880"},{"ecosystem":"Red Hat:enterprise_linux:7::computenode","fixed":["0:7.29.0-51.el7_6.3"],"introduced":["0"],"last_affected":[],"package":"curl-debuginfo","purl":"pkg:rpm/redhat/curl-debuginfo","source":"RHSA-2019:1880"},{"ecosystem":"Red Hat:enterprise_linux:7::computenode","fixed":["0:7.29.0-51.el7_6.3"],"introduced":["0"],"last_affected":[],"package":"libcurl","purl":"pkg:rpm/redhat/libcurl","source":"RHSA-2019:1880"},{"ecosystem":"Red Hat:enterprise_linux:7::computenode","fixed":["0:7.29.0-51.el7_6.3"],"introduced":["0"],"last_affected":[],"package":"libcurl-devel","purl":"pkg:rpm/redhat/libcurl-devel","source":"RHSA-2019:1880"},{"ecosystem":"Red Hat:enterprise_linux:7::server","fixed":["0:7.29.0-51.el7_6.3"],"introduced":["0"],"last_affected":[],"package":"curl","purl":"pkg:rpm/redhat/curl","source":"RHSA-2019:1880"},{"ecosystem":"Red Hat:enterprise_linux:7::server","fixed":["0:7.29.0-51.el7_6.3"],"introduced":["0"],"last_affected":[],"package":"curl-debuginfo","purl":"pkg:rpm/redhat/curl-debuginfo","source":"RHSA-2019:1880"},{"ecosystem":"Red Hat:enterprise_linux:7::server","fixed":["0:7.29.0-51.el7_6.3"],"introduced":["0"],"last_affected":[],"package":"libcurl","purl":"pkg:rpm/redhat/libcurl","source":"RHSA-2019:1880"},{"ecosystem":"Red Hat:enterprise_linux:7::server","fixed":["0:7.29.0-51.el7_6.3"],"introduced":["0"],"last_affected":[],"package":"libcurl-devel","purl":"pkg:rpm/redhat/libcurl-devel","source":"RHSA-2019:1880"},{"ecosystem":"Red Hat:enterprise_linux:7::workstation","fixed":["0:7.29.0-51.el7_6.3"],"introduced":["0"],"last_affected":[],"package":"curl","purl":"pkg:rpm/redhat/curl","source":"RHSA-2019:1880"},{"ecosystem":"Red Hat:enterprise_linux:7::workstation","fixed":["0:7.29.0-51.el7_6.3"],"introduced":["0"],"last_affected":[],"package":"curl-debuginfo","purl":"pkg:rpm/redhat/curl-debuginfo","source":"RHSA-2019:1880"},{"ecosystem":"Red Hat:enterprise_linux:7::workstation","fixed":["0:7.29.0-51.el7_6.3"],"introduced":["0"],"last_affected":[],"package":"libcurl","purl":"pkg:rpm/redhat/libcurl","source":"RHSA-2019:1880"},{"ecosystem":"Red Hat:enterprise_linux:7::workstation","fixed":["0:7.29.0-51.el7_6.3"],"introduced":["0"],"last_affected":[],"package":"libcurl-devel","purl":"pkg:rpm/redhat/libcurl-devel","source":"RHSA-2019:1880"},{"ecosystem":"SUSE:Linux Enterprise Desktop 12 SP3","fixed":["7.37.0-37.26.1"],"introduced":["0"],"last_affected":[],"package":"curl","purl":"pkg:rpm/suse/curl\u0026distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP3","source":"SUSE-SU-2018:2715-1"},{"ecosystem":"SUSE:Linux Enterprise Module for Basesystem 15","fixed":["7.60.0-3.9.1"],"introduced":["0"],"last_affected":[],"package":"curl","purl":"pkg:rpm/suse/curl\u0026distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015","source":"SUSE-SU-2018:2714-1"},{"ecosystem":"SUSE:Linux Enterprise Server 11 SP4","fixed":["7.37.0-70.33.1"],"introduced":["0"],"last_affected":[],"package":"curl","purl":"pkg:rpm/suse/curl\u0026distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4","source":"SUSE-SU-2018:2717-1"},{"ecosystem":"SUSE:Linux Enterprise Server 11-SECURITY","fixed":["7.37.0-70.33.1"],"introduced":["0"],"last_affected":[],"package":"curl-openssl1","purl":"pkg:rpm/suse/curl-openssl1\u0026distro=SUSE%20Linux%20Enterprise%20Server%2011-SECURITY","source":"SUSE-SU-2018:2717-1"},{"ecosystem":"SUSE:Linux Enterprise Server 12 SP3","fixed":["7.37.0-37.26.1"],"introduced":["0"],"last_affected":[],"package":"curl","purl":"pkg:rpm/suse/curl\u0026distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3","source":"SUSE-SU-2018:2715-1"},{"ecosystem":"SUSE:Linux Enterprise Server for SAP Applications 11 SP4","fixed":["7.37.0-70.33.1"],"introduced":["0"],"last_affected":[],"package":"curl","purl":"pkg:rpm/suse/curl\u0026distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2011%20SP4","source":"SUSE-SU-2018:2717-1"},{"ecosystem":"SUSE:Linux Enterprise Server for SAP Applications 12 SP3","fixed":["7.37.0-37.26.1"],"introduced":["0"],"last_affected":[],"package":"curl","purl":"pkg:rpm/suse/curl\u0026distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3","source":"SUSE-SU-2018:2715-1"},{"ecosystem":"SUSE:Linux Enterprise Software Development Kit 11 SP4","fixed":["7.37.0-70.33.1"],"introduced":["0"],"last_affected":[],"package":"curl","purl":"pkg:rpm/suse/curl\u0026distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2011%20SP4","source":"SUSE-SU-2018:2717-1"},{"ecosystem":"SUSE:Linux Enterprise Software Development Kit 12 SP3","fixed":["7.37.0-37.26.1"],"introduced":["0"],"last_affected":[],"package":"curl","purl":"pkg:rpm/suse/curl\u0026distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP3","source":"SUSE-SU-2018:2715-1"}],"prev":{"headline":"Null dereference in n/a","id":"CVE-2018-14617"},"products":["curl"],"published":"2018-09-05","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":"CC BY 4.0","name":"SUSE","prefix":"SUSE"},{"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":"no","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-04-15","vendors":["[UNKNOWN]"]},"summary":"An integer overflow in curl's NTLM authentication allows heap buffer overflows, potentially leading to code execution or denial of service.","url":"https://insights.sbomify.com/CVE-2018-14618/"}