{"id":"UBUNTU-CVE-2016-3707","details":"The icmp_check_sysrq function in net/ipv4/icmp.c in the kernel.org projects/rt patches for the Linux kernel, as used in the kernel-rt package before 3.10.0-327.22.1 in Red Hat Enterprise Linux for Real Time 7 and other products, allows remote attackers to execute SysRq commands via crafted ICMP Echo Request packets, as demonstrated by a brute-force attack to discover a cookie, or an attack that occurs after reading the local icmp_echo_sysrq file.","modified":"2025-07-16T08:19:09.567749Z","published":"2016-06-27T10:59:00Z","withdrawn":"2025-09-03T17:32:48Z","upstream":["CVE-2016-3707"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2016-3707"},{"type":"REPORT","url":"https://lwn.net/Articles/448790/"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1327484"},{"type":"REPORT","url":"http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00005.html"},{"type":"REPORT","url":"http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00000.html"},{"type":"REPORT","url":"http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00007.html"},{"type":"REPORT","url":"http://www.openwall.com/lists/oss-security/2016/05/17/1"},{"type":"REPORT","url":"https://access.redhat.com/errata/RHSA-2016:1301"},{"type":"REPORT","url":"https://access.redhat.com/errata/RHSA-2016:1341"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2016-3707"}],"affected":[{"package":{"name":"linux-raspi2","ecosystem":"Ubuntu:Pro:20.04:LTS","purl":"pkg:deb/ubuntu/linux-raspi2@5.4.0-1006.6?arch=source&distro=esm-infra/focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.3.0-1007.8","5.3.0-1014.16","5.3.0-1015.17","5.3.0-1017.19","5.4.0-1004.4","5.4.0-1006.6"],"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2016/UBUNTU-CVE-2016-3707.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}]}