{"answers":{"affected":"It affects 3 products.","exploited":"There is no known exploitation of CVE-2018-0739 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2018-0739 is a medium-severity denial of service vulnerability in Canonical Ubuntu Linux, published on 27 Mar 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-2018-0739 and fix it if it is affected.\n\nWhat it is: CVE-2018-0739 is a medium-severity denial of service vulnerability in Canonical Ubuntu Linux, published on 27 Mar 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-2018-0739 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-2018-0739/ (Markdown: https://insights.sbomify.com/CVE-2018-0739/index.md)","id":"CVE-2018-0739","markdown":"https://insights.sbomify.com/CVE-2018-0739/index.md","name":"CVE-2018-0739","record":{"aliases":["ALPINE-CVE-2018-0739","DEBIAN-CVE-2018-0739","DLA-1330-1","DSA-4157-1","DSA-4158-1","GHSA-2qcx-c97v-hcr6","MGASA-2018-0190","RHSA-2018:3090","RHSA-2019:1711","SUSE-SU-2018:0902-1","SUSE-SU-2018:0905-1","SUSE-SU-2018:0906-1","SUSE-SU-2018:0925-1","SUSE-SU-2018:0975-1","SUSE-SU-2018:2072-1","SUSE-SU-2018:2158-1","UBUNTU-CVE-2018-0739","USN-3611-1"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"OpenSSL cryptographic library","requires_auth":"none","summary":"Attackers can cause a denial of service via excessive recursion in ASN.1 parsing, requiring OpenSSL upgrades.","user_interaction":"required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"openssl","cpe":[{"product":"ubuntu_linux","vendor":"canonical"},{"product":"debian_linux","vendor":"debian"},{"product":"openssl","vendor":"openssl"}],"cvss":{"score":6.5,"severity":"medium","source":"nvd","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","version":"3.0"},"cwes":[{"id":"CWE-674","name":"Uncontrolled Recursion"}],"description":"Constructed ASN.1 types with a recursive definition (such as can be found in PKCS7) could eventually exceed the stack given malicious input with excessive recursion. This could result in a Denial Of Service attack. There are no such structures used within SSL/TLS that come from untrusted sources so this is considered safe. Fixed in OpenSSL 1.1.0h (Affected 1.1.0-1.1.0g). Fixed in OpenSSL 1.0.2o (Affected 1.0.2b-1.0.2n).","ecosystems":["Red Hat:enterprise_linux:7::server","Red Hat:jboss_enterprise_web_server:3.1::el6","Red Hat:jboss_enterprise_web_server:3.1::el7","SUSE:Linux Enterprise Desktop 12 SP2","SUSE:Linux Enterprise Desktop 12 SP3","SUSE:Linux Enterprise Module for Server Applications 15","SUSE:Linux Enterprise Server 11 SP4","SUSE:Linux Enterprise Server 11-SECURITY","SUSE:Linux Enterprise Server 12 SP1-LTSS","SUSE:Linux Enterprise Server 12 SP2","SUSE:Linux Enterprise Server 12 SP3","SUSE:Linux Enterprise Server 12-LTSS","SUSE:Linux Enterprise Server for Raspberry Pi 12 SP2","SUSE:Linux Enterprise Server for SAP Applications 11 SP4","SUSE:Linux Enterprise Server for SAP Applications 12 SP1","SUSE:Linux Enterprise Server for SAP Applications 12 SP2","SUSE:Linux Enterprise Server for SAP Applications 12 SP3","SUSE:Linux Enterprise Software Development Kit 11 SP4","SUSE:Linux Enterprise Software Development Kit 12 SP2","SUSE:Linux Enterprise Software Development Kit 12 SP3","SUSE:OpenStack Cloud 6","SUSE:Studio Onsite 1.3"],"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":"Constructed ASN.1 types with a recursive definition could exceed the stack","id":"CVE-2018-0739","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"canonical:ubuntu_linux","products":["canonical:ubuntu_linux","debian:debian_linux","openssl:openssl"],"type":"denial_of_service","year":"2018"},"n_packages":76,"n_references":34,"next":{"headline":"DO NOT USE THIS CANDIDATE NUMBER.","id":"CVE-2018-0740"},"packages":[{"ecosystem":"Red Hat:enterprise_linux:7::server","fixed":["0:20180508-3.gitee3198e672e2.el7"],"introduced":["0"],"last_affected":[],"package":"AAVMF","purl":"pkg:rpm/redhat/AAVMF","source":"RHSA-2018:3090"},{"ecosystem":"Red Hat:enterprise_linux:7::server","fixed":["0:20180508-3.gitee3198e672e2.el7"],"introduced":["0"],"last_affected":[],"package":"OVMF","purl":"pkg:rpm/redhat/OVMF","source":"RHSA-2018:3090"},{"ecosystem":"Red Hat:enterprise_linux:7::server","fixed":["0:20180508-3.gitee3198e672e2.el7"],"introduced":["0"],"last_affected":[],"package":"ovmf","purl":"pkg:rpm/redhat/ovmf","source":"RHSA-2018:3090"},{"ecosystem":"Red Hat:jboss_enterprise_web_server:3.1::el6","fixed":["0:1.2.17-19.redhat_19.ep7.el6"],"introduced":["0"],"last_affected":[],"package":"tomcat-native","purl":"pkg:rpm/redhat/tomcat-native","source":"RHSA-2019:1711"},{"ecosystem":"Red Hat:jboss_enterprise_web_server:3.1::el6","fixed":["0:1.2.17-19.redhat_19.ep7.el6"],"introduced":["0"],"last_affected":[],"package":"tomcat-native-debuginfo","purl":"pkg:rpm/redhat/tomcat-native-debuginfo","source":"RHSA-2019:1711"},{"ecosystem":"Red Hat:jboss_enterprise_web_server:3.1::el6","fixed":["0:7.0.70-34.ep7.el6"],"introduced":["0"],"last_affected":[],"package":"tomcat7","purl":"pkg:rpm/redhat/tomcat7","source":"RHSA-2019:1711"},{"ecosystem":"Red Hat:jboss_enterprise_web_server:3.1::el6","fixed":["0:7.0.70-34.ep7.el6"],"introduced":["0"],"last_affected":[],"package":"tomcat7-admin-webapps","purl":"pkg:rpm/redhat/tomcat7-admin-webapps","source":"RHSA-2019:1711"},{"ecosystem":"Red Hat:jboss_enterprise_web_server:3.1::el6","fixed":["0:7.0.70-34.ep7.el6"],"introduced":["0"],"last_affected":[],"package":"tomcat7-docs-webapp","purl":"pkg:rpm/redhat/tomcat7-docs-webapp","source":"RHSA-2019:1711"},{"ecosystem":"Red Hat:jboss_enterprise_web_server:3.1::el6","fixed":["0:7.0.70-34.ep7.el6"],"introduced":["0"],"last_affected":[],"package":"tomcat7-el-2.2-api","purl":"pkg:rpm/redhat/tomcat7-el-2.2-api","source":"RHSA-2019:1711"},{"ecosystem":"Red Hat:jboss_enterprise_web_server:3.1::el6","fixed":["0:7.0.70-34.ep7.el6"],"introduced":["0"],"last_affected":[],"package":"tomcat7-javadoc","purl":"pkg:rpm/redhat/tomcat7-javadoc","source":"RHSA-2019:1711"},{"ecosystem":"Red Hat:jboss_enterprise_web_server:3.1::el6","fixed":["0:7.0.70-34.ep7.el6"],"introduced":["0"],"last_affected":[],"package":"tomcat7-jsp-2.2-api","purl":"pkg:rpm/redhat/tomcat7-jsp-2.2-api","source":"RHSA-2019:1711"},{"ecosystem":"Red Hat:jboss_enterprise_web_server:3.1::el6","fixed":["0:7.0.70-34.ep7.el6"],"introduced":["0"],"last_affected":[],"package":"tomcat7-jsvc","purl":"pkg:rpm/redhat/tomcat7-jsvc","source":"RHSA-2019:1711"},{"ecosystem":"Red Hat:jboss_enterprise_web_server:3.1::el6","fixed":["0:7.0.70-34.ep7.el6"],"introduced":["0"],"last_affected":[],"package":"tomcat7-lib","purl":"pkg:rpm/redhat/tomcat7-lib","source":"RHSA-2019:1711"},{"ecosystem":"Red Hat:jboss_enterprise_web_server:3.1::el6","fixed":["0:7.0.70-34.ep7.el6"],"introduced":["0"],"last_affected":[],"package":"tomcat7-log4j","purl":"pkg:rpm/redhat/tomcat7-log4j","source":"RHSA-2019:1711"},{"ecosystem":"Red Hat:jboss_enterprise_web_server:3.1::el6","fixed":["0:7.0.70-34.ep7.el6"],"introduced":["0"],"last_affected":[],"package":"tomcat7-selinux","purl":"pkg:rpm/redhat/tomcat7-selinux","source":"RHSA-2019:1711"},{"ecosystem":"Red Hat:jboss_enterprise_web_server:3.1::el6","fixed":["0:7.0.70-34.ep7.el6"],"introduced":["0"],"last_affected":[],"package":"tomcat7-servlet-3.0-api","purl":"pkg:rpm/redhat/tomcat7-servlet-3.0-api","source":"RHSA-2019:1711"},{"ecosystem":"Red Hat:jboss_enterprise_web_server:3.1::el6","fixed":["0:7.0.70-34.ep7.el6"],"introduced":["0"],"last_affected":[],"package":"tomcat7-webapps","purl":"pkg:rpm/redhat/tomcat7-webapps","source":"RHSA-2019:1711"},{"ecosystem":"Red Hat:jboss_enterprise_web_server:3.1::el6","fixed":["0:8.0.36-39.ep7.el6"],"introduced":["0"],"last_affected":[],"package":"tomcat8","purl":"pkg:rpm/redhat/tomcat8","source":"RHSA-2019:1711"},{"ecosystem":"Red Hat:jboss_enterprise_web_server:3.1::el6","fixed":["0:8.0.36-39.ep7.el6"],"introduced":["0"],"last_affected":[],"package":"tomcat8-admin-webapps","purl":"pkg:rpm/redhat/tomcat8-admin-webapps","source":"RHSA-2019:1711"},{"ecosystem":"Red Hat:jboss_enterprise_web_server:3.1::el6","fixed":["0:8.0.36-39.ep7.el6"],"introduced":["0"],"last_affected":[],"package":"tomcat8-docs-webapp","purl":"pkg:rpm/redhat/tomcat8-docs-webapp","source":"RHSA-2019:1711"},{"ecosystem":"Red Hat:jboss_enterprise_web_server:3.1::el6","fixed":["0:8.0.36-39.ep7.el6"],"introduced":["0"],"last_affected":[],"package":"tomcat8-el-2.2-api","purl":"pkg:rpm/redhat/tomcat8-el-2.2-api","source":"RHSA-2019:1711"},{"ecosystem":"Red Hat:jboss_enterprise_web_server:3.1::el6","fixed":["0:8.0.36-39.ep7.el6"],"introduced":["0"],"last_affected":[],"package":"tomcat8-javadoc","purl":"pkg:rpm/redhat/tomcat8-javadoc","source":"RHSA-2019:1711"},{"ecosystem":"Red Hat:jboss_enterprise_web_server:3.1::el6","fixed":["0:8.0.36-39.ep7.el6"],"introduced":["0"],"last_affected":[],"package":"tomcat8-jsp-2.3-api","purl":"pkg:rpm/redhat/tomcat8-jsp-2.3-api","source":"RHSA-2019:1711"},{"ecosystem":"Red Hat:jboss_enterprise_web_server:3.1::el6","fixed":["0:8.0.36-39.ep7.el6"],"introduced":["0"],"last_affected":[],"package":"tomcat8-jsvc","purl":"pkg:rpm/redhat/tomcat8-jsvc","source":"RHSA-2019:1711"},{"ecosystem":"Red Hat:jboss_enterprise_web_server:3.1::el6","fixed":["0:8.0.36-39.ep7.el6"],"introduced":["0"],"last_affected":[],"package":"tomcat8-lib","purl":"pkg:rpm/redhat/tomcat8-lib","source":"RHSA-2019:1711"},{"ecosystem":"Red Hat:jboss_enterprise_web_server:3.1::el6","fixed":["0:8.0.36-39.ep7.el6"],"introduced":["0"],"last_affected":[],"package":"tomcat8-log4j","purl":"pkg:rpm/redhat/tomcat8-log4j","source":"RHSA-2019:1711"},{"ecosystem":"Red Hat:jboss_enterprise_web_server:3.1::el6","fixed":["0:8.0.36-39.ep7.el6"],"introduced":["0"],"last_affected":[],"package":"tomcat8-selinux","purl":"pkg:rpm/redhat/tomcat8-selinux","source":"RHSA-2019:1711"},{"ecosystem":"Red Hat:jboss_enterprise_web_server:3.1::el6","fixed":["0:8.0.36-39.ep7.el6"],"introduced":["0"],"last_affected":[],"package":"tomcat8-servlet-3.1-api","purl":"pkg:rpm/redhat/tomcat8-servlet-3.1-api","source":"RHSA-2019:1711"},{"ecosystem":"Red Hat:jboss_enterprise_web_server:3.1::el6","fixed":["0:8.0.36-39.ep7.el6"],"introduced":["0"],"last_affected":[],"package":"tomcat8-webapps","purl":"pkg:rpm/redhat/tomcat8-webapps","source":"RHSA-2019:1711"},{"ecosystem":"Red Hat:jboss_enterprise_web_server:3.1::el7","fixed":["0:1.2.17-19.redhat_19.ep7.el7"],"introduced":["0"],"last_affected":[],"package":"tomcat-native","purl":"pkg:rpm/redhat/tomcat-native","source":"RHSA-2019:1711"},{"ecosystem":"Red Hat:jboss_enterprise_web_server:3.1::el7","fixed":["0:1.2.17-19.redhat_19.ep7.el7"],"introduced":["0"],"last_affected":[],"package":"tomcat-native-debuginfo","purl":"pkg:rpm/redhat/tomcat-native-debuginfo","source":"RHSA-2019:1711"},{"ecosystem":"Red Hat:jboss_enterprise_web_server:3.1::el7","fixed":["0:7.0.70-34.ep7.el7"],"introduced":["0"],"last_affected":[],"package":"tomcat7","purl":"pkg:rpm/redhat/tomcat7","source":"RHSA-2019:1711"},{"ecosystem":"Red Hat:jboss_enterprise_web_server:3.1::el7","fixed":["0:7.0.70-34.ep7.el7"],"introduced":["0"],"last_affected":[],"package":"tomcat7-admin-webapps","purl":"pkg:rpm/redhat/tomcat7-admin-webapps","source":"RHSA-2019:1711"},{"ecosystem":"Red Hat:jboss_enterprise_web_server:3.1::el7","fixed":["0:7.0.70-34.ep7.el7"],"introduced":["0"],"last_affected":[],"package":"tomcat7-docs-webapp","purl":"pkg:rpm/redhat/tomcat7-docs-webapp","source":"RHSA-2019:1711"},{"ecosystem":"Red Hat:jboss_enterprise_web_server:3.1::el7","fixed":["0:7.0.70-34.ep7.el7"],"introduced":["0"],"last_affected":[],"package":"tomcat7-el-2.2-api","purl":"pkg:rpm/redhat/tomcat7-el-2.2-api","source":"RHSA-2019:1711"},{"ecosystem":"Red Hat:jboss_enterprise_web_server:3.1::el7","fixed":["0:7.0.70-34.ep7.el7"],"introduced":["0"],"last_affected":[],"package":"tomcat7-javadoc","purl":"pkg:rpm/redhat/tomcat7-javadoc","source":"RHSA-2019:1711"},{"ecosystem":"Red Hat:jboss_enterprise_web_server:3.1::el7","fixed":["0:7.0.70-34.ep7.el7"],"introduced":["0"],"last_affected":[],"package":"tomcat7-jsp-2.2-api","purl":"pkg:rpm/redhat/tomcat7-jsp-2.2-api","source":"RHSA-2019:1711"},{"ecosystem":"Red Hat:jboss_enterprise_web_server:3.1::el7","fixed":["0:7.0.70-34.ep7.el7"],"introduced":["0"],"last_affected":[],"package":"tomcat7-jsvc","purl":"pkg:rpm/redhat/tomcat7-jsvc","source":"RHSA-2019:1711"},{"ecosystem":"Red Hat:jboss_enterprise_web_server:3.1::el7","fixed":["0:7.0.70-34.ep7.el7"],"introduced":["0"],"last_affected":[],"package":"tomcat7-lib","purl":"pkg:rpm/redhat/tomcat7-lib","source":"RHSA-2019:1711"},{"ecosystem":"Red Hat:jboss_enterprise_web_server:3.1::el7","fixed":["0:7.0.70-34.ep7.el7"],"introduced":["0"],"last_affected":[],"package":"tomcat7-log4j","purl":"pkg:rpm/redhat/tomcat7-log4j","source":"RHSA-2019:1711"}],"prev":{"headline":"DO NOT USE THIS CANDIDATE NUMBER.","id":"CVE-2018-0738"},"products":["OpenSSL"],"published":"2018-03-27","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":"2024-09-16","vendors":["OpenSSL"]},"summary":"Attackers can cause a denial of service via excessive recursion in ASN.1 parsing, requiring OpenSSL upgrades.","url":"https://insights.sbomify.com/CVE-2018-0739/"}