{"id":"UBUNTU-CVE-2021-35516","details":"When reading a specially crafted 7Z archive, Compress can be made to allocate large amounts of memory that finally leads to an out of memory error even for very small inputs. This could be used to mount a denial of service attack against services that use Compress' sevenz package.","modified":"2026-05-20T16:05:05.327246001Z","published":"2021-07-13T08:15:00Z","upstream":["CVE-2021-35516"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-35516"},{"type":"REPORT","url":"https://www.openwall.com/lists/oss-security/2021/07/13/2"},{"type":"REPORT","url":"https://commons.apache.org/proper/commons-compress/security-reports.html"},{"type":"REPORT","url":"https://lists.apache.org/thread.html/rf68442d67eb166f4b6cf0bbbe6c7f99098c12954f37332073c9822ca%40%3Cuser.commons.apache.org%3E"},{"type":"REPORT","url":"http://www.openwall.com/lists/oss-security/2021/07/13/2"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2021-35516"}],"affected":[{"package":{"name":"libcommons-compress-java","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/libcommons-compress-java?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.9-1","1.10-1","1.10-2"],"ecosystem_specific":{"binaries":[{"binary_version":"1.10-2","binary_name":"libcommons-compress-java"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-35516.json"}},{"package":{"name":"libcommons-compress-java","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/libcommons-compress-java?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.13-1","1.13-2","1.18-1~18.04"],"ecosystem_specific":{"binaries":[{"binary_name":"libcommons-compress-java","binary_version":"1.18-1~18.04"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-35516.json"}},{"package":{"name":"libcommons-compress-java","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/libcommons-compress-java?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.18-3","1.19-1"],"ecosystem_specific":{"binaries":[{"binary_version":"1.19-1","binary_name":"libcommons-compress-java"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-35516.json"}},{"package":{"name":"libcommons-compress-java","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/libcommons-compress-java?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.20-1","1.21-1"],"ecosystem_specific":{"binaries":[{"binary_name":"libcommons-compress-java","binary_version":"1.21-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-35516.json"}},{"package":{"name":"libcommons-compress-java","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/libcommons-compress-java?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.23.0-1","1.24.0-1","1.25.0-1"],"ecosystem_specific":{"binaries":[{"binary_name":"libcommons-compress-java","binary_version":"1.25.0-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-35516.json"}},{"package":{"name":"libcommons-compress-java","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/libcommons-compress-java?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.27.1-2"],"ecosystem_specific":{"binaries":[{"binary_name":"libcommons-compress-java","binary_version":"1.27.1-2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-35516.json"}},{"package":{"name":"libcommons-compress-java","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/libcommons-compress-java?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.27.1-2"],"ecosystem_specific":{"binaries":[{"binary_name":"libcommons-compress-java","binary_version":"1.27.1-2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-35516.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:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}