{"id":"UBUNTU-CVE-2023-4256","details":"Within tcpreplay's tcprewrite, a double free vulnerability has been identified in the tcpedit_dlt_cleanup() function within plugins/dlt_plugins.c. This vulnerability can be exploited by supplying a specifically crafted file to the tcprewrite binary. This flaw enables a local attacker to initiate a Denial of Service (DoS) attack.","modified":"2026-02-04T04:39:34.424448Z","published":"2023-12-21T16:15:00Z","related":["USN-7231-1"],"upstream":["CVE-2023-4256"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2023-4256"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2023-4256"},{"type":"REPORT","url":"https://github.com/appneta/tcpreplay/commit/c23738f15dd43e320364f7d3b45174f253e82884"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-7231-1"}],"affected":[{"package":{"name":"tcpreplay","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/tcpreplay@4.2.6-1ubuntu0.1~esm5?arch=source&distro=esm-apps/bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.2.6-1ubuntu0.1~esm5"}]}],"versions":["4.2.6-1","4.2.6-1ubuntu0.1~esm1","4.2.6-1ubuntu0.1~esm2","4.2.6-1ubuntu0.1~esm3","4.2.6-1ubuntu0.1~esm4"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro","binaries":[{"binary_name":"tcpreplay","binary_version":"4.2.6-1ubuntu0.1~esm5"}],"priority_reason":"CLI tool crash only"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-4256.json"}},{"package":{"name":"tcpreplay","ecosystem":"Ubuntu:Pro:20.04:LTS","purl":"pkg:deb/ubuntu/tcpreplay@4.3.2-1ubuntu0.1~esm3?arch=source&distro=esm-apps/focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.3.2-1ubuntu0.1~esm3"}]}],"versions":["4.3.2-1build1","4.3.2-1ubuntu0.1~esm1","4.3.2-1ubuntu0.1~esm2"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro","binaries":[{"binary_name":"tcpreplay","binary_version":"4.3.2-1ubuntu0.1~esm3"}],"priority_reason":"CLI tool crash only"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-4256.json"}},{"package":{"name":"tcpreplay","ecosystem":"Ubuntu:Pro:22.04:LTS","purl":"pkg:deb/ubuntu/tcpreplay@4.3.4-1ubuntu0.1~esm2?arch=source&distro=esm-apps/jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.3.4-1ubuntu0.1~esm2"}]}],"versions":["4.3.3-2","4.3.4-1","4.3.4-1ubuntu0.1~esm1"],"ecosystem_specific":{"priority_reason":"CLI tool crash only","availability":"Available with Ubuntu Pro: https://ubuntu.com/pro","binaries":[{"binary_name":"tcpreplay","binary_version":"4.3.4-1ubuntu0.1~esm2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-4256.json"}},{"package":{"name":"tcpreplay","ecosystem":"Ubuntu:Pro:24.04:LTS","purl":"pkg:deb/ubuntu/tcpreplay@4.4.4-1ubuntu0.1~esm1?arch=source&distro=esm-apps/noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.4.4-1ubuntu0.1~esm1"}]}],"versions":["4.4.3-1","4.4.4-1","4.4.4-1build1","4.4.4-1build2"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro","binaries":[{"binary_name":"tcpreplay","binary_version":"4.4.4-1ubuntu0.1~esm1"}],"priority_reason":"CLI tool crash only"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-4256.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"low"}]}