{"id":"UBUNTU-CVE-2013-4577","details":"A certain Debian patch for GNU GRUB uses world-readable permissions for grub.cfg, which allows local users to obtain password hashes, as demonstrated by reading the password_pbkdf2 directive in the file.","modified":"2025-09-08T16:43:04Z","published":"2014-05-12T14:55:00Z","upstream":["CVE-2013-4577"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2013-4577"},{"type":"REPORT","url":"http://www.openwall.com/lists/oss-security/2013/11/14"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2013-4577"}],"affected":[{"package":{"name":"grub2","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/grub2@2.00-20?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.00-20"}]}],"versions":["2.00-19ubuntu2","2.00-19ubuntu3","2.00-19ubuntu4"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"grub-common","binary_version":"2.00-20"},{"binary_name":"grub-coreboot","binary_version":"2.00-20"},{"binary_name":"grub-coreboot-bin","binary_version":"2.00-20"},{"binary_name":"grub-efi","binary_version":"2.00-20"},{"binary_name":"grub-efi-amd64","binary_version":"2.00-20"},{"binary_name":"grub-efi-amd64-bin","binary_version":"2.00-20"},{"binary_version":"2.00-20","binary_name":"grub-efi-ia32"},{"binary_version":"2.00-20","binary_name":"grub-efi-ia32-bin"},{"binary_name":"grub-emu","binary_version":"2.00-20"},{"binary_name":"grub-firmware-qemu","binary_version":"2.00-20"},{"binary_name":"grub-ieee1275","binary_version":"2.00-20"},{"binary_name":"grub-ieee1275-bin","binary_version":"2.00-20"},{"binary_name":"grub-linuxbios","binary_version":"2.00-20"},{"binary_name":"grub-pc","binary_version":"2.00-20"},{"binary_name":"grub-pc-bin","binary_version":"2.00-20"},{"binary_name":"grub-rescue-pc","binary_version":"2.00-20"},{"binary_name":"grub-theme-starfield","binary_version":"2.00-20"},{"binary_name":"grub2","binary_version":"2.00-20"},{"binary_name":"grub2-common","binary_version":"2.00-20"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2013/UBUNTU-CVE-2013-4577.json"}}],"schema_version":"1.7.3","severity":[{"type":"Ubuntu","score":"low"}]}