{"id":"UBUNTU-CVE-2018-15501","details":"In ng_pkt in transports/smart_pkt.c in libgit2 before 0.26.6 and 0.27.x before 0.27.4, a remote attacker can send a crafted smart-protocol \"ng\" packet that lacks a '\\0' byte to trigger an out-of-bounds read that leads to DoS.","modified":"2026-04-22T12:54:25.751333Z","published":"2018-08-18T02:29:00Z","upstream":["CVE-2018-15501"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2018-15501"},{"type":"REPORT","url":"https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9406"},{"type":"REPORT","url":"https://github.com/libgit2/libgit2/commit/1f9a8510e1d2f20ed7334eeeddb92c4dd8e7c649"},{"type":"REPORT","url":"https://bugzilla.suse.com/show_bug.cgi?id=1104641"},{"type":"REPORT","url":"https://github.com/libgit2/libgit2/releases/tag/v0.26.6"},{"type":"REPORT","url":"https://github.com/libgit2/libgit2/releases/tag/v0.27.4"},{"type":"REPORT","url":"https://www.pro-linux.de/sicherheit/2/44650/denial-of-service-in-libgit2.html"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2018-15501"}],"affected":[{"package":{"name":"libgit2","ecosystem":"Ubuntu:Pro:14.04:LTS","purl":"pkg:deb/ubuntu/libgit2@0.19.0-2ubuntu0.4+esm1?arch=source&distro=esm-infra-legacy/trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.19.0-2","0.19.0-2ubuntu0.4","0.19.0-2ubuntu0.4+esm1"],"ecosystem_specific":{"binaries":[{"binary_version":"0.19.0-2ubuntu0.4+esm1","binary_name":"libgit2-0"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-15501.json"}},{"package":{"name":"libgit2","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/libgit2@0.24.1-2ubuntu0.2+esm2?arch=source&distro=esm-apps/xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.22.2-2","0.23.1-1","0.24.1-2","0.24.1-2ubuntu0.2","0.24.1-2ubuntu0.2+esm1","0.24.1-2ubuntu0.2+esm2"],"ecosystem_specific":{"binaries":[{"binary_version":"0.24.1-2ubuntu0.2+esm2","binary_name":"libgit2-24"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-15501.json"}},{"package":{"name":"libgit2","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/libgit2@0.26.0+dfsg.1-1.1ubuntu0.2+esm1?arch=source&distro=esm-apps/bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"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","0.26.0+dfsg.1-1.1ubuntu0.2+esm1"],"ecosystem_specific":{"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/2018/UBUNTU-CVE-2018-15501.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"}]}