{"id":"UBUNTU-CVE-2023-45853","details":"MiniZip in zlib through 1.3 has an integer overflow and resultant heap-based buffer overflow in zipOpenNewFileInZip4_64 via a long filename, comment, or extra field. NOTE: MiniZip is not a supported part of the zlib product. NOTE: pyminizip through 0.2.6 is also vulnerable because it bundles an affected zlib version, and exposes the applicable MiniZip code through its compress API.","modified":"2026-04-22T14:12:32.156084Z","published":"2023-10-14T02:15:00Z","related":["USN-7107-1"],"upstream":["CVE-2023-45853"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2023-45853"},{"type":"REPORT","url":"https://github.com/madler/zlib/pull/843"},{"type":"REPORT","url":"https://www.winimage.com/zLibDll/minizip.html"},{"type":"REPORT","url":"https://chromium.googlesource.com/chromium/src/+/d709fb23806858847131027da95ef4c548813356"},{"type":"REPORT","url":"https://chromium.googlesource.com/chromium/src/+/de29dd6c7151d3cd37cb4cf0036800ddfb1d8b61"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2023-45853"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-7107-1"}],"affected":[{"package":{"name":"zlib","ecosystem":"Ubuntu:Pro:14.04:LTS","purl":"pkg:deb/ubuntu/zlib@1:1.2.8.dfsg-1ubuntu1.1+esm3?arch=source&distro=trusty/esm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:1.2.8.dfsg-1ubuntu1.1+esm3"}]}],"versions":["1:1.2.8.dfsg-1ubuntu1","1:1.2.8.dfsg-1ubuntu1.1","1:1.2.8.dfsg-1ubuntu1.1+esm1","1:1.2.8.dfsg-1ubuntu1.1+esm2"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro","binaries":[{"binary_name":"lib32z1","binary_version":"1:1.2.8.dfsg-1ubuntu1.1+esm3"},{"binary_name":"lib64z1","binary_version":"1:1.2.8.dfsg-1ubuntu1.1+esm3"},{"binary_name":"libx32z1","binary_version":"1:1.2.8.dfsg-1ubuntu1.1+esm3"},{"binary_version":"1:1.2.8.dfsg-1ubuntu1.1+esm3","binary_name":"zlib-bin"},{"binary_version":"1:1.2.8.dfsg-1ubuntu1.1+esm3","binary_name":"zlib1g"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-45853.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:H/I:H/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}]}