{"answers":{"affected":"It affects 12 products.","exploited":"There is no known exploitation of CVE-2018-16881 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2018-16881 is a medium-severity denial of service vulnerability in Debian Debian Linux, published on 25 Jan 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-2018-16881 and fix it if it is affected.\n\nWhat it is: CVE-2018-16881 is a medium-severity denial of service vulnerability in Debian Debian Linux, published on 25 Jan 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-2018-16881 in the wild and no public exploit code.\n\nAffected product: Debian Debian 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-2018-16881/ (Markdown: https://insights.sbomify.com/CVE-2018-16881/index.md)","id":"CVE-2018-16881","markdown":"https://insights.sbomify.com/CVE-2018-16881/index.md","name":"CVE-2018-16881","record":{"aliases":["DEBIAN-CVE-2018-16881","GHSA-hg54-w573-5vvv","MGASA-2019-0110","RHBA-2019:2501","RHSA-2019:2110","SUSE-SU-2019:0209-1","UBUNTU-CVE-2018-16881"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"rsyslog logging server","requires_auth":"none","summary":"An attacker can crash the rsyslog service by sending a specially crafted message to the imptcp socket, causing a denial of service.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"redhat","cpe":[{"product":"debian_linux","vendor":"debian"},{"product":"enterprise_linux_desktop","vendor":"redhat"},{"product":"enterprise_linux_for_ibm_z_systems","vendor":"redhat"},{"product":"enterprise_linux_for_power_big_endian","vendor":"redhat"},{"product":"enterprise_linux_for_power_little_endian","vendor":"redhat"},{"product":"enterprise_linux_for_scientific_computing","vendor":"redhat"},{"product":"enterprise_linux_server","vendor":"redhat"},{"product":"enterprise_linux_workstation","vendor":"redhat"},{"product":"virtualization","vendor":"redhat"},{"product":"virtualization_host","vendor":"redhat"},{"product":"virtualization_manager","vendor":"redhat"},{"product":"rsyslog","vendor":"rsyslog"}],"cvss":{"score":5.3,"severity":"medium","source":"cna","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","version":"3.0"},"cwes":[{"id":"CWE-190","name":"Integer Overflow or Wraparound"}],"description":"A denial of service vulnerability was found in rsyslog in the imptcp module. An attacker could send a specially crafted message to the imptcp socket, which would cause rsyslog to crash. Versions before 8.27.0 are vulnerable.","ecosystems":["Red Hat:enterprise_linux:7::client","Red Hat:enterprise_linux:7::computenode","Red Hat:enterprise_linux:7::hypervisor","Red Hat:enterprise_linux:7::server","Red Hat:enterprise_linux:7::workstation","Red Hat:rhev_manager:4.3","SUSE:Linux Enterprise Desktop 12 SP3","SUSE:Linux Enterprise Desktop 12 SP4","SUSE:Linux Enterprise Server 12 SP3","SUSE:Linux Enterprise Server 12 SP4","SUSE:Linux Enterprise Server for SAP Applications 12 SP3","SUSE:Linux Enterprise Server for SAP Applications 12 SP4"],"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":"Denial of service in rsyslog:","id":"CVE-2018-16881","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"debian:debian_linux","products":["debian:debian_linux","redhat:enterprise_linux_desktop","redhat:enterprise_linux_for_ibm_z_systems","redhat:enterprise_linux_for_power_little_endian","redhat:enterprise_linux_for_scientific_computing","redhat:enterprise_linux_server","redhat:enterprise_linux_workstation","redhat:virtualization","redhat:virtualization_host"],"type":"denial_of_service","year":"2018"},"n_packages":91,"n_references":6,"next":{"headline":"Use after free in kernel:","id":"CVE-2018-16882"},"packages":[{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["0:8.24.0-38.el7"],"introduced":["0"],"last_affected":[],"package":"rsyslog","purl":"pkg:rpm/redhat/rsyslog","source":"RHSA-2019:2110"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["0:8.24.0-38.el7"],"introduced":["0"],"last_affected":[],"package":"rsyslog-crypto","purl":"pkg:rpm/redhat/rsyslog-crypto","source":"RHSA-2019:2110"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["0:8.24.0-38.el7"],"introduced":["0"],"last_affected":[],"package":"rsyslog-debuginfo","purl":"pkg:rpm/redhat/rsyslog-debuginfo","source":"RHSA-2019:2110"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["0:8.24.0-38.el7"],"introduced":["0"],"last_affected":[],"package":"rsyslog-doc","purl":"pkg:rpm/redhat/rsyslog-doc","source":"RHSA-2019:2110"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["0:8.24.0-38.el7"],"introduced":["0"],"last_affected":[],"package":"rsyslog-elasticsearch","purl":"pkg:rpm/redhat/rsyslog-elasticsearch","source":"RHSA-2019:2110"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["0:8.24.0-38.el7"],"introduced":["0"],"last_affected":[],"package":"rsyslog-gnutls","purl":"pkg:rpm/redhat/rsyslog-gnutls","source":"RHSA-2019:2110"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["0:8.24.0-38.el7"],"introduced":["0"],"last_affected":[],"package":"rsyslog-gssapi","purl":"pkg:rpm/redhat/rsyslog-gssapi","source":"RHSA-2019:2110"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["0:8.24.0-38.el7"],"introduced":["0"],"last_affected":[],"package":"rsyslog-kafka","purl":"pkg:rpm/redhat/rsyslog-kafka","source":"RHSA-2019:2110"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["0:8.24.0-38.el7"],"introduced":["0"],"last_affected":[],"package":"rsyslog-libdbi","purl":"pkg:rpm/redhat/rsyslog-libdbi","source":"RHSA-2019:2110"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["0:8.24.0-38.el7"],"introduced":["0"],"last_affected":[],"package":"rsyslog-mmaudit","purl":"pkg:rpm/redhat/rsyslog-mmaudit","source":"RHSA-2019:2110"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["0:8.24.0-38.el7"],"introduced":["0"],"last_affected":[],"package":"rsyslog-mmjsonparse","purl":"pkg:rpm/redhat/rsyslog-mmjsonparse","source":"RHSA-2019:2110"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["0:8.24.0-38.el7"],"introduced":["0"],"last_affected":[],"package":"rsyslog-mmkubernetes","purl":"pkg:rpm/redhat/rsyslog-mmkubernetes","source":"RHSA-2019:2110"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["0:8.24.0-38.el7"],"introduced":["0"],"last_affected":[],"package":"rsyslog-mmnormalize","purl":"pkg:rpm/redhat/rsyslog-mmnormalize","source":"RHSA-2019:2110"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["0:8.24.0-38.el7"],"introduced":["0"],"last_affected":[],"package":"rsyslog-mmsnmptrapd","purl":"pkg:rpm/redhat/rsyslog-mmsnmptrapd","source":"RHSA-2019:2110"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["0:8.24.0-38.el7"],"introduced":["0"],"last_affected":[],"package":"rsyslog-mysql","purl":"pkg:rpm/redhat/rsyslog-mysql","source":"RHSA-2019:2110"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["0:8.24.0-38.el7"],"introduced":["0"],"last_affected":[],"package":"rsyslog-pgsql","purl":"pkg:rpm/redhat/rsyslog-pgsql","source":"RHSA-2019:2110"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["0:8.24.0-38.el7"],"introduced":["0"],"last_affected":[],"package":"rsyslog-relp","purl":"pkg:rpm/redhat/rsyslog-relp","source":"RHSA-2019:2110"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["0:8.24.0-38.el7"],"introduced":["0"],"last_affected":[],"package":"rsyslog-snmp","purl":"pkg:rpm/redhat/rsyslog-snmp","source":"RHSA-2019:2110"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["0:8.24.0-38.el7"],"introduced":["0"],"last_affected":[],"package":"rsyslog-udpspoof","purl":"pkg:rpm/redhat/rsyslog-udpspoof","source":"RHSA-2019:2110"},{"ecosystem":"Red Hat:enterprise_linux:7::computenode","fixed":["0:8.24.0-38.el7"],"introduced":["0"],"last_affected":[],"package":"rsyslog","purl":"pkg:rpm/redhat/rsyslog","source":"RHSA-2019:2110"},{"ecosystem":"Red Hat:enterprise_linux:7::computenode","fixed":["0:8.24.0-38.el7"],"introduced":["0"],"last_affected":[],"package":"rsyslog-crypto","purl":"pkg:rpm/redhat/rsyslog-crypto","source":"RHSA-2019:2110"},{"ecosystem":"Red Hat:enterprise_linux:7::computenode","fixed":["0:8.24.0-38.el7"],"introduced":["0"],"last_affected":[],"package":"rsyslog-debuginfo","purl":"pkg:rpm/redhat/rsyslog-debuginfo","source":"RHSA-2019:2110"},{"ecosystem":"Red Hat:enterprise_linux:7::computenode","fixed":["0:8.24.0-38.el7"],"introduced":["0"],"last_affected":[],"package":"rsyslog-doc","purl":"pkg:rpm/redhat/rsyslog-doc","source":"RHSA-2019:2110"},{"ecosystem":"Red Hat:enterprise_linux:7::computenode","fixed":["0:8.24.0-38.el7"],"introduced":["0"],"last_affected":[],"package":"rsyslog-elasticsearch","purl":"pkg:rpm/redhat/rsyslog-elasticsearch","source":"RHSA-2019:2110"},{"ecosystem":"Red Hat:enterprise_linux:7::computenode","fixed":["0:8.24.0-38.el7"],"introduced":["0"],"last_affected":[],"package":"rsyslog-gnutls","purl":"pkg:rpm/redhat/rsyslog-gnutls","source":"RHSA-2019:2110"},{"ecosystem":"Red Hat:enterprise_linux:7::computenode","fixed":["0:8.24.0-38.el7"],"introduced":["0"],"last_affected":[],"package":"rsyslog-gssapi","purl":"pkg:rpm/redhat/rsyslog-gssapi","source":"RHSA-2019:2110"},{"ecosystem":"Red Hat:enterprise_linux:7::computenode","fixed":["0:8.24.0-38.el7"],"introduced":["0"],"last_affected":[],"package":"rsyslog-kafka","purl":"pkg:rpm/redhat/rsyslog-kafka","source":"RHSA-2019:2110"},{"ecosystem":"Red Hat:enterprise_linux:7::computenode","fixed":["0:8.24.0-38.el7"],"introduced":["0"],"last_affected":[],"package":"rsyslog-libdbi","purl":"pkg:rpm/redhat/rsyslog-libdbi","source":"RHSA-2019:2110"},{"ecosystem":"Red Hat:enterprise_linux:7::computenode","fixed":["0:8.24.0-38.el7"],"introduced":["0"],"last_affected":[],"package":"rsyslog-mmaudit","purl":"pkg:rpm/redhat/rsyslog-mmaudit","source":"RHSA-2019:2110"},{"ecosystem":"Red Hat:enterprise_linux:7::computenode","fixed":["0:8.24.0-38.el7"],"introduced":["0"],"last_affected":[],"package":"rsyslog-mmjsonparse","purl":"pkg:rpm/redhat/rsyslog-mmjsonparse","source":"RHSA-2019:2110"},{"ecosystem":"Red Hat:enterprise_linux:7::computenode","fixed":["0:8.24.0-38.el7"],"introduced":["0"],"last_affected":[],"package":"rsyslog-mmkubernetes","purl":"pkg:rpm/redhat/rsyslog-mmkubernetes","source":"RHSA-2019:2110"},{"ecosystem":"Red Hat:enterprise_linux:7::computenode","fixed":["0:8.24.0-38.el7"],"introduced":["0"],"last_affected":[],"package":"rsyslog-mmnormalize","purl":"pkg:rpm/redhat/rsyslog-mmnormalize","source":"RHSA-2019:2110"},{"ecosystem":"Red Hat:enterprise_linux:7::computenode","fixed":["0:8.24.0-38.el7"],"introduced":["0"],"last_affected":[],"package":"rsyslog-mmsnmptrapd","purl":"pkg:rpm/redhat/rsyslog-mmsnmptrapd","source":"RHSA-2019:2110"},{"ecosystem":"Red Hat:enterprise_linux:7::computenode","fixed":["0:8.24.0-38.el7"],"introduced":["0"],"last_affected":[],"package":"rsyslog-mysql","purl":"pkg:rpm/redhat/rsyslog-mysql","source":"RHSA-2019:2110"},{"ecosystem":"Red Hat:enterprise_linux:7::computenode","fixed":["0:8.24.0-38.el7"],"introduced":["0"],"last_affected":[],"package":"rsyslog-pgsql","purl":"pkg:rpm/redhat/rsyslog-pgsql","source":"RHSA-2019:2110"},{"ecosystem":"Red Hat:enterprise_linux:7::computenode","fixed":["0:8.24.0-38.el7"],"introduced":["0"],"last_affected":[],"package":"rsyslog-relp","purl":"pkg:rpm/redhat/rsyslog-relp","source":"RHSA-2019:2110"},{"ecosystem":"Red Hat:enterprise_linux:7::computenode","fixed":["0:8.24.0-38.el7"],"introduced":["0"],"last_affected":[],"package":"rsyslog-snmp","purl":"pkg:rpm/redhat/rsyslog-snmp","source":"RHSA-2019:2110"},{"ecosystem":"Red Hat:enterprise_linux:7::computenode","fixed":["0:8.24.0-38.el7"],"introduced":["0"],"last_affected":[],"package":"rsyslog-udpspoof","purl":"pkg:rpm/redhat/rsyslog-udpspoof","source":"RHSA-2019:2110"},{"ecosystem":"Red Hat:enterprise_linux:7::hypervisor","fixed":["0:8.24.0-41.el7_7"],"introduced":["0"],"last_affected":[],"package":"rsyslog","purl":"pkg:rpm/redhat/rsyslog","source":"RHBA-2019:2501"},{"ecosystem":"Red Hat:enterprise_linux:7::hypervisor","fixed":["0:8.24.0-41.el7_7"],"introduced":["0"],"last_affected":[],"package":"rsyslog-debuginfo","purl":"pkg:rpm/redhat/rsyslog-debuginfo","source":"RHBA-2019:2501"}],"prev":{"headline":"Memory corruption in kernel","id":"CVE-2018-16880"},"products":["rsyslog:"],"published":"2019-01-25","related":[{"cvss_score":10,"headline":"ProFTPD Improper Access Control","id":"CVE-2015-3306","kev_date_added":"2026-10-08","published":"2015-05-18"},{"cvss_score":9.9,"headline":"RoundCube Webmail Deserialization of Untrusted Data","id":"CVE-2025-49113","kev_date_added":"2026-02-20","published":"2025-06-02"},{"cvss_score":9.8,"headline":"GNU InetUtils Argument Injection","id":"CVE-2026-24061","kev_date_added":"2026-01-26","published":"2026-01-21"},{"cvss_score":9.8,"headline":"Linux Kernel Improper Check for Unusual or Exceptional Conditions","id":"CVE-2025-39682","kev_date_added":"2026-09-18","published":"2025-09-05"},{"cvss_score":9.8,"headline":"Mozilla Firefox Use-After-Free","id":"CVE-2024-9680","kev_date_added":"2024-10-15","published":"2024-10-09"},{"cvss_score":9.8,"headline":"RARLAB UnRAR Directory Traversal","id":"CVE-2022-30333","kev_date_added":"2022-08-09","published":"2022-05-09"},{"cvss_score":9.8,"headline":"Roundcube Webmail SQL Injection","id":"CVE-2021-44026","kev_date_added":"2023-06-22","published":"2021-11-19"}],"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":"RHBA"},{"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":["The rsyslog Project"]},"summary":"An attacker can crash the rsyslog service by sending a specially crafted message to the imptcp socket, causing a denial of service.","url":"https://insights.sbomify.com/CVE-2018-16881/"}