{"id":"UBUNTU-CVE-2021-37620","details":"Exiv2 is a command-line utility and C++ library for reading, writing, deleting, and modifying the metadata of image files. An out-of-bounds read was found in Exiv2 versions v0.27.4 and earlier. The out-of-bounds read is triggered when Exiv2 is used to read the metadata of a crafted image file. An attacker could potentially exploit the vulnerability to cause a denial of service, if they can trick the victim into running Exiv2 on a crafted image file. The bug is fixed in version v0.27.5.","modified":"2026-01-30T01:49:42.044277Z","published":"2021-08-09T19:15:00Z","related":["USN-5043-1","USN-5043-2"],"upstream":["CVE-2021-37620"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-37620"},{"type":"REPORT","url":"https://github.com/Exiv2/exiv2/pull/1769"},{"type":"REPORT","url":"https://github.com/Exiv2/exiv2/security/advisories/GHSA-v5g7-46xf-h728"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-5043-1"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-5043-2"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2021-37620"}],"affected":[{"package":{"name":"exiv2","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/exiv2@0.25-2.1ubuntu16.04.7+esm4?arch=source&distro=esm-infra/xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.25-2.1ubuntu16.04.7+esm4"}]}],"versions":["0.25-1ubuntu1","0.25-2.1","0.25-2.1ubuntu16.04.1","0.25-2.1ubuntu16.04.2","0.25-2.1ubuntu16.04.3","0.25-2.1ubuntu16.04.4","0.25-2.1ubuntu16.04.5","0.25-2.1ubuntu16.04.6","0.25-2.1ubuntu16.04.7+esm1","0.25-2.1ubuntu16.04.7+esm2","0.25-2.1ubuntu16.04.7+esm3"],"ecosystem_specific":{"binaries":[{"binary_name":"exiv2","binary_version":"0.25-2.1ubuntu16.04.7+esm4"},{"binary_name":"libexiv2-14","binary_version":"0.25-2.1ubuntu16.04.7+esm4"},{"binary_name":"libexiv2-dev","binary_version":"0.25-2.1ubuntu16.04.7+esm4"}],"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-37620.json"}},{"package":{"name":"exiv2","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/exiv2@0.25-3.1ubuntu0.18.04.11?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.25-3.1ubuntu0.18.04.11"}]}],"versions":["0.25-3.1","0.25-3.1ubuntu0.18.04.1","0.25-3.1ubuntu0.18.04.2","0.25-3.1ubuntu0.18.04.3","0.25-3.1ubuntu0.18.04.4","0.25-3.1ubuntu0.18.04.5","0.25-3.1ubuntu0.18.04.7","0.25-3.1ubuntu0.18.04.9","0.25-3.1ubuntu0.18.04.10"],"ecosystem_specific":{"binaries":[{"binary_name":"exiv2","binary_version":"0.25-3.1ubuntu0.18.04.11"},{"binary_name":"libexiv2-14","binary_version":"0.25-3.1ubuntu0.18.04.11"},{"binary_name":"libexiv2-dev","binary_version":"0.25-3.1ubuntu0.18.04.11"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-37620.json"}},{"package":{"name":"exiv2","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/exiv2@0.27.2-8ubuntu2.7?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.27.2-8ubuntu2.7"}]}],"versions":["0.25-4ubuntu2","0.25-4ubuntu3","0.27.2-8ubuntu2","0.27.2-8ubuntu2.2","0.27.2-8ubuntu2.4","0.27.2-8ubuntu2.5","0.27.2-8ubuntu2.6"],"ecosystem_specific":{"binaries":[{"binary_name":"exiv2","binary_version":"0.27.2-8ubuntu2.7"},{"binary_name":"libexiv2-27","binary_version":"0.27.2-8ubuntu2.7"},{"binary_name":"libexiv2-dev","binary_version":"0.27.2-8ubuntu2.7"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-37620.json"}},{"package":{"name":"exiv2","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/exiv2@0.27.3-3ubuntu4?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.27.3-3ubuntu4"}]}],"ecosystem_specific":{"binaries":[{"binary_name":"exiv2","binary_version":"0.27.3-3ubuntu4"},{"binary_name":"libexiv2-27","binary_version":"0.27.3-3ubuntu4"},{"binary_name":"libexiv2-dev","binary_version":"0.27.3-3ubuntu4"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-37620.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:H/PR:N/UI:R/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}