{"id":"UBUNTU-CVE-2021-29623","details":"Exiv2 is a C++ library and a command-line utility to read, write, delete and modify Exif, IPTC, XMP and ICC image metadata. A read of uninitialized memory was found in Exiv2 versions v0.27.3 and earlier. Exiv2 is a command-line utility and C++ library for reading, writing, deleting, and modifying the metadata of image files. The read of uninitialized memory is triggered when Exiv2 is used to read the metadata of a crafted image file. An attacker could potentially exploit the vulnerability to leak a few bytes of stack memory, if they can trick the victim into running Exiv2 on a crafted image file. The bug is fixed in version v0.27.4.","modified":"2026-04-22T12:52:13.057072Z","published":"2021-05-13T17:15:00Z","related":["USN-4964-1"],"upstream":["CVE-2021-29623"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-29623"},{"type":"REPORT","url":"https://github.com/Exiv2/exiv2/pull/1627"},{"type":"REPORT","url":"https://github.com/Exiv2/exiv2/security/advisories/GHSA-6253-qjwm-3q4v"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4964-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2021-29623"}],"affected":[{"package":{"name":"exiv2","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/exiv2@0.27.2-8ubuntu2.4?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.27.2-8ubuntu2.4"}]}],"versions":["0.25-4ubuntu2","0.25-4ubuntu3","0.27.2-8ubuntu2","0.27.2-8ubuntu2.2"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"exiv2","binary_version":"0.27.2-8ubuntu2.4"},{"binary_name":"libexiv2-27","binary_version":"0.27.2-8ubuntu2.4"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-29623.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N"},{"type":"Ubuntu","score":"low"}]}