{"id":"UBUNTU-CVE-2023-34188","details":"The HTTP server in Mongoose before 7.10 accepts requests containing negative Content-Length headers. By sending a single attack payload over TCP, an attacker can cause an infinite loop in which the server continuously reparses that payload, and does not respond to any other requests.","modified":"2026-07-09T17:15:09.452988769Z","published":"2023-06-23T20:15:00Z","upstream":["CVE-2023-34188"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2023-34188"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2023-34188"},{"type":"REPORT","url":"https://github.com/cesanta/mongoose/commit/4663090a8fb036146dfe77718cff612b0101cb0f"}],"affected":[{"package":{"name":"swupdate","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/swupdate?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2020.11-2","2021.04-1.1","2021.04-2","2021.04-2build1","2021.11-1"],"ecosystem_specific":{"binaries":[{"binary_version":"2021.11-1","binary_name":"libswupdate0.1"},{"binary_name":"lua-swupdate","binary_version":"2021.11-1"},{"binary_version":"2021.11-1","binary_name":"swupdate"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-34188.json"}},{"package":{"name":"swupdate","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/swupdate?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2023.05+dfsg-3","2023.05+dfsg-4","2023.05+dfsg-4build1","2023.05+dfsg-5","2023.12+dfsg-1","2023.12.1+dfsg-1ubuntu1","2023.12.1+dfsg-1ubuntu4","2023.12.1+dfsg-1ubuntu5"],"ecosystem_specific":{"binaries":[{"binary_name":"libswupdate0.1","binary_version":"2023.12.1+dfsg-1ubuntu5"},{"binary_name":"lua-swupdate","binary_version":"2023.12.1+dfsg-1ubuntu5"},{"binary_name":"swupdate","binary_version":"2023.12.1+dfsg-1ubuntu5"},{"binary_name":"swupdate-www","binary_version":"2023.12.1+dfsg-1ubuntu5"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-34188.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}