{"answers":{"affected":"It affects 4 products.","exploited":"There is no known exploitation of CVE-2018-5381 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2018-5381 is a medium-severity denial of service vulnerability in Canonical Ubuntu Linux, published on 19 Feb 2018. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2018-5381 and fix it if it is affected.\n\nWhat it is: CVE-2018-5381 is a medium-severity denial of service vulnerability in Canonical Ubuntu Linux, published on 19 Feb 2018. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2018-5381 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-2018-5381/ (Markdown: https://insights.sbomify.com/CVE-2018-5381/index.md)","id":"CVE-2018-5381","markdown":"https://insights.sbomify.com/CVE-2018-5381/index.md","name":"CVE-2018-5381","record":{"aliases":["CLSA-2026-1777946639","CLSA-2026-1778170790","CVE-2018-1000065","GHSA-g4qp-j7fc-2xcf","UBUNTU-CVE-2018-5381"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Quagga BGP daemon","requires_auth":"low_privilege","summary":"An attacker can cause a denial of service in the Quagga BGP daemon by sending malformed BGP OPEN messages with invalid capabilities.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"certcc","cpe":[{"product":"ubuntu_linux","vendor":"canonical"},{"product":"debian_linux","vendor":"debian"},{"product":"quagga","vendor":"quagga"},{"product":"ruggedcom_rox_ii_firmware","vendor":"siemens"}],"cvss":{"score":6.5,"severity":"medium","source":"cna","vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","version":"3.0"},"cwes":[{"id":"CWE-835","name":"Loop with Unreachable Exit Condition"},{"id":"CWE-228","name":"Improper Handling of Syntactically Invalid Structure"}],"description":"The Quagga BGP daemon (bgpd) prior to version 1.2.3 has a bug in its parsing of \"Capabilities\" in BGP OPEN messages, in the bgp_packet.c:bgp_capability_msg_parse function. The parser can enter an infinite loop on invalid capabilities if a Multi-Protocol capability does not have a recognized AFI/SAFI, causing a denial of service.","ecosystems":[],"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 bgpd","id":"CVE-2018-5381","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"canonical:ubuntu_linux","products":["canonical:ubuntu_linux","debian:debian_linux"],"type":"denial_of_service","year":"2018"},"n_packages":0,"n_references":8,"next":{"headline":"Bouncy Castle BKS-V1 keystore files vulnerable to trivial hash collisions","id":"CVE-2018-5382"},"packages":[],"prev":{"headline":"Memory corruption in bgpd","id":"CVE-2018-5380"},"products":["bgpd"],"published":"2018-02-19","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":"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":["Quagga"]},"summary":"An attacker can cause a denial of service in the Quagga BGP daemon by sending malformed BGP OPEN messages with invalid capabilities.","url":"https://insights.sbomify.com/CVE-2018-5381/"}