{"id":"UBUNTU-CVE-2020-12279","details":"An issue was discovered in libgit2 before 0.28.4 and 0.9x before 0.99.0. checkout.c mishandles equivalent filenames that exist because of NTFS short names. This may allow remote code execution when cloning a repository. This issue is similar to CVE-2019-1353.","modified":"2026-08-13T02:50:10.260171073Z","published":"2020-04-27T17:15:00Z","related":["USN-6678-1"],"upstream":["CVE-2020-12279"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-12279"},{"type":"REPORT","url":"https://github.com/git/git/security/advisories/GHSA-589j-mmg9-733v"},{"type":"REPORT","url":"https://github.com/libgit2/libgit2/releases/tag/v0.28.4"},{"type":"REPORT","url":"https://github.com/libgit2/libgit2/releases/tag/v0.99.0"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-6678-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2020-12279"}],"affected":[{"package":{"name":"libgit2","ecosystem":"Ubuntu:Pro:14.04:LTS","purl":"pkg:deb/ubuntu/libgit2?arch=source&distro=esm-infra-legacy%2Ftrusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.19.0-2","0.19.0-2ubuntu0.4","0.19.0-2ubuntu0.4+esm1","0.19.0-2ubuntu0.4+esm2"],"ecosystem_specific":{"binaries":[{"binary_name":"libgit2-0","binary_version":"0.19.0-2ubuntu0.4+esm2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-12279.json"}},{"package":{"name":"libgit2","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/libgit2?arch=source&distro=esm-apps%2Fxenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.24.1-2ubuntu0.2+esm2"}]}],"versions":["0.22.2-2","0.23.1-1","0.24.1-2","0.24.1-2ubuntu0.2","0.24.1-2ubuntu0.2+esm1"],"ecosystem_specific":{"binaries":[{"binary_version":"0.24.1-2ubuntu0.2+esm2","binary_name":"libgit2-24"}],"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-12279.json"}},{"package":{"name":"libgit2","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/libgit2?arch=source&distro=esm-apps%2Fbionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.26.0+dfsg.1-1.1ubuntu0.2+esm1"}]}],"versions":["0.25.1+really0.24.6-1","0.26.0+dfsg.1-1.1","0.26.0+dfsg.1-1.1build1","0.26.0+dfsg.1-1.1ubuntu0.2"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro","binaries":[{"binary_version":"0.26.0+dfsg.1-1.1ubuntu0.2+esm1","binary_name":"libgit2-26"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-12279.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}]}