{"id":"USN-5570-2","summary":"zlib vulnerability","details":"USN-5570-1 fixed a vulnerability in zlib. This update provides the\ncorresponding update for Ubuntu 22.04 LTS and Ubuntu 20.04 LTS.\n\nOriginal advisory details:\n\n Evgeny Legerov discovered that zlib incorrectly handled memory when\n performing certain inflate operations. An attacker could use this issue\n to cause zlib to crash, resulting in a denial of service, or possibly\n execute arbitrary code.\n","modified":"2026-04-22T10:46:36.561672Z","published":"2022-10-17T18:37:50Z","related":["UBUNTU-CVE-2022-37434"],"upstream":["CVE-2022-37434","UBUNTU-CVE-2022-37434"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-5570-2"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2022-37434"}],"affected":[{"package":{"name":"zlib","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/zlib@1:1.2.11.dfsg-2ubuntu1.5?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:1.2.11.dfsg-2ubuntu1.5"}]}],"versions":["1:1.2.11.dfsg-1ubuntu3","1:1.2.11.dfsg-2ubuntu1","1:1.2.11.dfsg-2ubuntu1.1","1:1.2.11.dfsg-2ubuntu1.2","1:1.2.11.dfsg-2ubuntu1.3","1:1.2.11.dfsg-2ubuntu1.4"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"1:1.2.11.dfsg-2ubuntu1.5","binary_name":"lib32z1"},{"binary_version":"1:1.2.11.dfsg-2ubuntu1.5","binary_name":"lib64z1"},{"binary_version":"1:1.2.11.dfsg-2ubuntu1.5","binary_name":"libx32z1"},{"binary_name":"zlib1g","binary_version":"1:1.2.11.dfsg-2ubuntu1.5"}]},"database_specific":{"cves_map":{"cves":[{"id":"CVE-2022-37434","severity":[{"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:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"type":"Ubuntu","score":"medium"}]}],"ecosystem":"Ubuntu:20.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5570-2.json"}},{"package":{"name":"zlib","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/zlib@1:1.2.11.dfsg-2ubuntu9.2?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:1.2.11.dfsg-2ubuntu9.2"}]}],"versions":["1:1.2.11.dfsg-2ubuntu7","1:1.2.11.dfsg-2ubuntu9","1:1.2.11.dfsg-2ubuntu9.1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"lib32z1","binary_version":"1:1.2.11.dfsg-2ubuntu9.2"},{"binary_name":"lib64z1","binary_version":"1:1.2.11.dfsg-2ubuntu9.2"},{"binary_name":"libx32z1","binary_version":"1:1.2.11.dfsg-2ubuntu9.2"},{"binary_name":"zlib1g","binary_version":"1:1.2.11.dfsg-2ubuntu9.2"}]},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:22.04:LTS","cves":[{"id":"CVE-2022-37434","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5570-2.json"}}],"schema_version":"1.7.5"}