{"id":"CVE-2017-7889","details":"The mm subsystem in the Linux kernel through 3.2 does not properly enforce the CONFIG_STRICT_DEVMEM protection mechanism, which allows local users to read or write to kernel memory locations in the first megabyte (and bypass slab-allocation access restrictions) via an application that opens the /dev/mem file, related to arch/x86/mm/init.c and drivers/char/mem.c.","modified":"2026-03-15T22:24:39.826682Z","published":"2017-04-17T00:59:00.203Z","related":["SUSE-SU-2017:2908-1","SUSE-SU-2017:2920-1"],"references":[{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2017:1842"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2017:2077"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2017:2669"},{"type":"ADVISORY","url":"https://usn.ubuntu.com/3583-1/"},{"type":"ADVISORY","url":"https://usn.ubuntu.com/3583-2/"},{"type":"ADVISORY","url":"http://www.debian.org/security/2017/dsa-3945"},{"type":"ADVISORY","url":"http://www.securityfocus.com/bid/97690"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2018:1854"},{"type":"ADVISORY","url":"https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?id=b8f254aa17f720053054c4ecff3920973a83b9d6"},{"type":"FIX","url":"http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=a4866aa812518ed1a37d8ea0c881dc946409de94"},{"type":"FIX","url":"http://www.openwall.com/lists/oss-security/2017/04/16/4"},{"type":"FIX","url":"https://github.com/torvalds/linux/commit/a4866aa812518ed1a37d8ea0c881dc946409de94"}],"affected":[{"database_specific":{"unresolved_ranges":[{"events":[{"introduced":"0"},{"fixed":"3.2.91"}]},{"events":[{"introduced":"3.3"},{"fixed":"3.10.107"}]},{"events":[{"introduced":"3.11"},{"fixed":"3.12.74"}]},{"events":[{"introduced":"3.13"},{"fixed":"3.16.46"}]},{"events":[{"introduced":"3.17"},{"fixed":"3.18.50"}]},{"events":[{"introduced":"3.19"},{"fixed":"4.1.41"}]},{"events":[{"introduced":"4.2"},{"fixed":"4.4.63"}]},{"events":[{"introduced":"4.5"},{"fixed":"4.9.24"}]},{"events":[{"introduced":"4.10"},{"fixed":"4.10.12"}]},{"events":[{"introduced":"0"},{"last_affected":"8.0"}]},{"events":[{"introduced":"0"},{"last_affected":"12.04"}]},{"events":[{"introduced":"0"},{"last_affected":"14.04"}]}],"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2017-7889.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}]}