{"id":"UBUNTU-CVE-2020-29129","details":"ncsi.c in libslirp through 4.3.1 has a buffer over-read because it tries to read a certain amount of header data even if that exceeds the total packet length.","modified":"2026-04-22T14:22:32.890689Z","published":"2020-11-26T20:15:00Z","related":["USN-5009-1"],"upstream":["CVE-2020-29129"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-29129"},{"type":"REPORT","url":"https://lists.freedesktop.org/archives/slirp/2020-November/000115.html"},{"type":"REPORT","url":"http://www.openwall.com/lists/oss-security/2020/11/27/1"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-5009-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2020-29129"}],"affected":[{"package":{"name":"libslirp","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/libslirp@4.1.0-2ubuntu2.2?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.1.0-2ubuntu2.2"}]}],"versions":["4.0.0-1","4.0.0-2","4.1.0-1","4.1.0-2","4.1.0-2ubuntu1","4.1.0-2ubuntu2","4.1.0-2ubuntu2.1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"libslirp0","binary_version":"4.1.0-2ubuntu2.2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-29129.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N"},{"type":"Ubuntu","score":"low"}]}