{"answers":{"affected":"","exploited":"There is no known exploitation of ALBA-2021:4897 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"ALBA-2021:4897 is a denial of service vulnerability in libknet1, published on 1 Dec 2021."},"fix_prompt":"Check this codebase for ALBA-2021:4897 and fix it if it is affected.\n\nWhat it is: ALBA-2021:4897 is a denial of service vulnerability in libknet1, published on 1 Dec 2021. \nExploitation: There is no known exploitation of ALBA-2021:4897 in the wild and no public exploit code.\n\nAffected product: libknet1. 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/ALBA-2021-4897/ (Markdown: https://insights.sbomify.com/ALBA-2021-4897/index.md)","id":"ALBA-2021:4897","markdown":"https://insights.sbomify.com/ALBA-2021-4897/index.md","name":"ALBA-2021:4897","record":{"aliases":[],"analysis":{"component_type":"library","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"unknown","non_default_config":false,"product_category":"Kronosnet library","requires_auth":"unknown","summary":"Instability in Kronosnet defrag buffer handling could lead to denial of service, requiring a patch update.","user_interaction":"unknown","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":null,"cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"Kronosnet (knet) is a network abstraction layer designed for High Availability\nuse cases.\n\nBug Fix(es) and Enhancement(s):\n\n* Revert defrag buffer changes that could potentially cause instability. (BZ#2023847)","ecosystems":["AlmaLinux:8"],"exploits":{"exploitdb":null,"first_seen":null,"github_poc":null,"max_poc_stars":null,"metasploit":null,"nuclei":null,"refs":[],"tier":null},"has_fix":true,"headline":"kronosnet bug fix update","id":"ALBA-2021:4897","indexable":true,"kev":null,"kind":"advisory","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2021"},"n_packages":13,"n_references":null,"packages":[{"ecosystem":"AlmaLinux:8","fixed":["1.18-4.el8_5"],"introduced":["0"],"last_affected":[],"package":"libknet1","purl":"pkg:rpm/almalinux/libknet1","source":"ALBA-2021:4897"},{"ecosystem":"AlmaLinux:8","fixed":["1.18-4.el8_5"],"introduced":["0"],"last_affected":[],"package":"libknet1-compress-bzip2-plugin","purl":"pkg:rpm/almalinux/libknet1-compress-bzip2-plugin","source":"ALBA-2021:4897"},{"ecosystem":"AlmaLinux:8","fixed":["1.18-4.el8_5"],"introduced":["0"],"last_affected":[],"package":"libknet1-compress-lz4-plugin","purl":"pkg:rpm/almalinux/libknet1-compress-lz4-plugin","source":"ALBA-2021:4897"},{"ecosystem":"AlmaLinux:8","fixed":["1.18-4.el8_5"],"introduced":["0"],"last_affected":[],"package":"libknet1-compress-lzma-plugin","purl":"pkg:rpm/almalinux/libknet1-compress-lzma-plugin","source":"ALBA-2021:4897"},{"ecosystem":"AlmaLinux:8","fixed":["1.18-4.el8_5"],"introduced":["0"],"last_affected":[],"package":"libknet1-compress-lzo2-plugin","purl":"pkg:rpm/almalinux/libknet1-compress-lzo2-plugin","source":"ALBA-2021:4897"},{"ecosystem":"AlmaLinux:8","fixed":["1.18-4.el8_5"],"introduced":["0"],"last_affected":[],"package":"libknet1-compress-plugins-all","purl":"pkg:rpm/almalinux/libknet1-compress-plugins-all","source":"ALBA-2021:4897"},{"ecosystem":"AlmaLinux:8","fixed":["1.18-4.el8_5"],"introduced":["0"],"last_affected":[],"package":"libknet1-compress-zlib-plugin","purl":"pkg:rpm/almalinux/libknet1-compress-zlib-plugin","source":"ALBA-2021:4897"},{"ecosystem":"AlmaLinux:8","fixed":["1.18-4.el8_5"],"introduced":["0"],"last_affected":[],"package":"libknet1-crypto-nss-plugin","purl":"pkg:rpm/almalinux/libknet1-crypto-nss-plugin","source":"ALBA-2021:4897"},{"ecosystem":"AlmaLinux:8","fixed":["1.18-4.el8_5"],"introduced":["0"],"last_affected":[],"package":"libknet1-crypto-openssl-plugin","purl":"pkg:rpm/almalinux/libknet1-crypto-openssl-plugin","source":"ALBA-2021:4897"},{"ecosystem":"AlmaLinux:8","fixed":["1.18-4.el8_5"],"introduced":["0"],"last_affected":[],"package":"libknet1-crypto-plugins-all","purl":"pkg:rpm/almalinux/libknet1-crypto-plugins-all","source":"ALBA-2021:4897"},{"ecosystem":"AlmaLinux:8","fixed":["1.18-4.el8_5"],"introduced":["0"],"last_affected":[],"package":"libknet1-devel","purl":"pkg:rpm/almalinux/libknet1-devel","source":"ALBA-2021:4897"},{"ecosystem":"AlmaLinux:8","fixed":["1.18-4.el8_5"],"introduced":["0"],"last_affected":[],"package":"libknet1-plugins-all","purl":"pkg:rpm/almalinux/libknet1-plugins-all","source":"ALBA-2021:4897"},{"ecosystem":"AlmaLinux:8","fixed":["1.18-4.el8_5"],"introduced":["0"],"last_affected":[],"package":"libnozzle1","purl":"pkg:rpm/almalinux/libnozzle1","source":"ALBA-2021:4897"}],"products":null,"published":"2021-12-01","related":[],"sources":[{"class":"attribution","licence":"MIT","name":"AlmaLinux","prefix":"ALBA"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":null,"updated":null,"vendors":null},"summary":"Instability in Kronosnet defrag buffer handling could lead to denial of service, requiring a patch update.","url":"https://insights.sbomify.com/ALBA-2021-4897/"}