{"id":"UBUNTU-CVE-2020-18831","details":"Buffer Overflow vulnerability in tEXtToDataBuf function in pngimage.cpp in Exiv2 0.27.1 allows remote attackers to cause a denial of service and other unspecified impacts via use of crafted file.","modified":"2026-03-19T06:57:49.595022Z","published":"2023-08-22T19:15:00Z","withdrawn":"2026-03-19T04:52:01Z","upstream":["CVE-2020-18831"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-18831"},{"type":"REPORT","url":"https://www.exiv2.org/download.html"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2020-18831"}],"affected":[{"package":{"name":"exiv2","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/exiv2@0.25-2.1ubuntu16.04.7+esm5?arch=source&distro=esm-infra/xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"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","0.25-2.1ubuntu16.04.7+esm4","0.25-2.1ubuntu16.04.7+esm5"],"ecosystem_specific":{"binaries":[{"binary_name":"exiv2","binary_version":"0.25-2.1ubuntu16.04.7+esm5"},{"binary_name":"libexiv2-14","binary_version":"0.25-2.1ubuntu16.04.7+esm5"},{"binary_name":"libexiv2-dev","binary_version":"0.25-2.1ubuntu16.04.7+esm5"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-18831.json"}},{"package":{"name":"exiv2","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/exiv2@0.25-3.1ubuntu0.18.04.11+esm1?arch=source&distro=esm-infra/bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"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","0.25-3.1ubuntu0.18.04.11","0.25-3.1ubuntu0.18.04.11+esm1"],"ecosystem_specific":{"binaries":[{"binary_name":"exiv2","binary_version":"0.25-3.1ubuntu0.18.04.11+esm1"},{"binary_name":"libexiv2-14","binary_version":"0.25-3.1ubuntu0.18.04.11+esm1"},{"binary_name":"libexiv2-dev","binary_version":"0.25-3.1ubuntu0.18.04.11+esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-18831.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:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}]}