{"id":"UBUNTU-CVE-2020-26420","details":"Memory leak in RTPS protocol dissector in Wireshark 3.4.0 and 3.2.0 to 3.2.8 allows denial of service via packet injection or crafted capture file.","modified":"2026-04-22T14:16:27.314178Z","published":"2020-12-11T19:15:00Z","upstream":["CVE-2020-26420"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-26420"},{"type":"REPORT","url":"https://gitlab.com/wireshark/wireshark/-/issues/16994"},{"type":"REPORT","url":"https://www.wireshark.org/security/wnpa-sec-2020-18.html"},{"type":"REPORT","url":"https://gitlab.com/gitlab-org/cves/-/blob/master/2020/CVE-2020-26420.json"},{"type":"REPORT","url":"https://gitlab.com/wireshark/wireshark/-/commit/53682b53da7f0d51effc042cc8613b47d2d65819"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2020-26420"}],"affected":[{"package":{"name":"wireshark","ecosystem":"Ubuntu:Pro:20.04:LTS","purl":"pkg:deb/ubuntu/wireshark@3.2.3-1ubuntu0.1~esm2?arch=source&distro=esm-apps/focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.0.5-1","3.0.7-1","3.2.1-1","3.2.2-1","3.2.3-1","3.2.3-1ubuntu0.1~esm1","3.2.3-1ubuntu0.1~esm2"],"ecosystem_specific":{"binaries":[{"binary_name":"libwireshark-data","binary_version":"3.2.3-1ubuntu0.1~esm2"},{"binary_name":"libwireshark13","binary_version":"3.2.3-1ubuntu0.1~esm2"},{"binary_name":"libwiretap10","binary_version":"3.2.3-1ubuntu0.1~esm2"},{"binary_name":"libwsutil11","binary_version":"3.2.3-1ubuntu0.1~esm2"},{"binary_name":"tshark","binary_version":"3.2.3-1ubuntu0.1~esm2"},{"binary_name":"wireshark","binary_version":"3.2.3-1ubuntu0.1~esm2"},{"binary_name":"wireshark-common","binary_version":"3.2.3-1ubuntu0.1~esm2"},{"binary_name":"wireshark-gtk","binary_version":"3.2.3-1ubuntu0.1~esm2"},{"binary_name":"wireshark-qt","binary_version":"3.2.3-1ubuntu0.1~esm2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-26420.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"},{"type":"Ubuntu","score":"medium"}]}