{"answers":{"affected":"It affects 4 products.","exploited":"There is no known exploitation of CVE-2020-28242 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2020-28242 is a medium-severity denial of service vulnerability in Debian Debian Linux, published on 6 Nov 2020. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2020-28242 and fix it if it is affected.\n\nWhat it is: CVE-2020-28242 is a medium-severity denial of service vulnerability in Debian Debian Linux, published on 6 Nov 2020. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2020-28242 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-2020-28242/ (Markdown: https://insights.sbomify.com/CVE-2020-28242/index.md)","id":"CVE-2020-28242","markdown":"https://insights.sbomify.com/CVE-2020-28242/index.md","name":"CVE-2020-28242","record":{"aliases":["DEBIAN-CVE-2020-28242","GHSA-q5gr-h5mj-hp63","UBUNTU-CVE-2020-28242"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":true,"product_category":"Asterisk PBX","requires_auth":"low_privilege","summary":"A remote attacker can cause Asterisk to consume excessive memory and crash by triggering an infinite INVITE loop during outbound authentication challenges.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"certified_asterisk","vendor":"asterisk"},{"product":"debian_linux","vendor":"debian"},{"product":"fedora","vendor":"fedoraproject"},{"product":"asterisk","vendor":"sangoma"}],"cvss":{"score":6.5,"severity":"medium","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-674","name":"Uncontrolled Recursion"}],"description":"An issue was discovered in Asterisk Open Source 13.x before 13.37.1, 16.x before 16.14.1, 17.x before 17.8.1, and 18.x before 18.0.1 and Certified Asterisk before 16.8-cert5. If Asterisk is challenged on an outbound INVITE and the nonce is changed in each response, Asterisk will continually send INVITEs in a loop. This causes Asterisk to consume more and more memory since the transaction will never terminate (even if the call is hung up), ultimately leading to a restart or shutdown of Asterisk. Outbound authentication must be configured on the endpoint for this to occur.","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 n/a","id":"CVE-2020-28242","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"debian:debian_linux","products":["debian:debian_linux","fedoraproject:fedora"],"type":"denial_of_service","year":"2020"},"n_packages":0,"n_references":3,"next":{"headline":"SaltStack Salt command injection via a crafted process name","id":"CVE-2020-28243"},"packages":[],"prev":{"headline":"Memory corruption in n/a","id":"CVE-2020-28241"},"products":["n/a"],"published":"2020-11-06","related":[{"cvss_score":9.1,"headline":"Out-of-bounds read in multipart parsing in PJSIP","id":"CVE-2022-21723","kev_date_added":null,"published":"2022-01-27"},{"cvss_score":8.1,"headline":"Use after free in PJSIP","id":"CVE-2022-23608","kev_date_added":null,"published":"2022-02-22"},{"cvss_score":7.5,"headline":"Denial of service in n/a","id":"CVE-2017-9358","kev_date_added":null,"published":"2017-06-02"},{"cvss_score":7.3,"headline":"Potential integer underflow upon receiving STUN message in PJSIP","id":"CVE-2021-37706","kev_date_added":null,"published":"2021-12-22"},{"cvss_score":6.5,"headline":"Null dereference in n/a","id":"CVE-2021-46837","kev_date_added":null,"published":"2022-08-30"},{"cvss_score":5,"headline":"Denial of service in n/a","id":"CVE-2013-2686","kev_date_added":null,"published":"2013-03-29"}],"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":"2024-08-04","vendors":["n/a"]},"summary":"A remote attacker can cause Asterisk to consume excessive memory and crash by triggering an infinite INVITE loop during outbound authentication challenges.","url":"https://insights.sbomify.com/CVE-2020-28242/"}