{"affected":[{"ecosystem_specific":{"binaries":[{"xen":"4.4.4_28-22.62.1","xen-doc-html":"4.4.4_28-22.62.1","xen-kmp-default":"4.4.4_28_k3.12.61_52.119-22.62.1","xen-libs":"4.4.4_28-22.62.1","xen-libs-32bit":"4.4.4_28-22.62.1","xen-tools":"4.4.4_28-22.62.1","xen-tools-domU":"4.4.4_28-22.62.1"}]},"package":{"ecosystem":"SUSE:Linux Enterprise Server 12-LTSS","name":"xen","purl":"purl:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Server%2012-LTSS"},"ranges":[{"events":[{"introduced":"0"},{"fixed":"4.4.4_28-22.62.1"}],"type":"ECOSYSTEM"}]}],"aliases":[],"details":"This update for xen fixes several issues.\n\nThese security issues were fixed:\n\n- CVE-2017-5753, CVE-2017-5715, CVE-2017-5754: Prevent information leaks via\n  side effects of speculative execution, aka 'Spectre' and 'Meltdown' attacks\n  (bsc#1074562, bsc#1068032)\n- CVE-2018-5683: The vga_draw_text function allowed local OS guest privileged\n  users to cause a denial of service (out-of-bounds read and QEMU process crash)\n  by leveraging improper memory address validation (bsc#1076116).\n- CVE-2017-18030: The cirrus_invalidate_region function allowed local OS guest\n  privileged users to cause a denial of service (out-of-bounds array access and\n  QEMU process crash) via vectors related to negative pitch (bsc#1076180).\n- CVE-2017-15595: x86 PV guest OS users were able to cause a DoS (unbounded\n  recursion, stack consumption, and hypervisor crash) or possibly gain privileges\n  via crafted page-table stacking (bsc#1061081)\n- CVE-2017-17566: Prevent PV guest OS users to cause a denial of service (host\n  OS crash) or gain host OS privileges in shadow mode by mapping a certain\n  auxiliary page (bsc#1070158).\n- CVE-2017-17563: Prevent guest OS users to cause a denial of service (host OS\n  crash) or gain host OS privileges by leveraging an incorrect mask for\n  reference-count overflow checking in shadow mode (bsc#1070159).\n- CVE-2017-17564: Prevent guest OS users to cause a denial of service (host OS\n  crash) or gain host OS privileges by leveraging incorrect error handling for\n  reference counting in shadow mode (bsc#1070160).\n- CVE-2017-17565: Prevent PV guest OS users to cause a denial of service (host\n  OS crash) if shadow mode and log-dirty mode are in place, because of an\n  incorrect assertion related to M2P (bsc#1070163).\n- Added missing intermediate preemption checks for guest requesting removal of\n  memory. This allowed malicious guest administrator to cause denial of service\n  due to the high cost of this operation (bsc#1080635).\n- Because of XEN not returning the proper error messages when transitioning\n  grant tables from v2 to v1 a malicious guest was able to cause DoS or\n  potentially allowed for privilege escalation as well as information leaks\n  (bsc#1080662).\n\nThis non-security issue was fixed:\n\n- bsc#1035442: Increased the value of LIBXL_DESTROY_TIMEOUT from 10 to 100\n  seconds. If many domUs shutdown in parallel the backends couldn't keep up\n\n- Upstream patches from Jan (bsc#1027519)\n","id":"SUSE-SU-2018:0601-1","modified":"2018-03-05T09:40:56Z","published":"2018-03-05T09:40:56Z","references":[{"type":"ADVISORY","url":"https://www.suse.com/support/update/announcement/2018/suse-su-20180601-1/"},{"type":"REPORT","url":"https://bugzilla.suse.com/1027519"},{"type":"REPORT","url":"https://bugzilla.suse.com/1035442"},{"type":"REPORT","url":"https://bugzilla.suse.com/1061081"},{"type":"REPORT","url":"https://bugzilla.suse.com/1068032"},{"type":"REPORT","url":"https://bugzilla.suse.com/1070158"},{"type":"REPORT","url":"https://bugzilla.suse.com/1070159"},{"type":"REPORT","url":"https://bugzilla.suse.com/1070160"},{"type":"REPORT","url":"https://bugzilla.suse.com/1070163"},{"type":"REPORT","url":"https://bugzilla.suse.com/1074562"},{"type":"REPORT","url":"https://bugzilla.suse.com/1076116"},{"type":"REPORT","url":"https://bugzilla.suse.com/1076180"},{"type":"REPORT","url":"https://bugzilla.suse.com/1080635"},{"type":"REPORT","url":"https://bugzilla.suse.com/1080662"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2017-15595"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2017-17563"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2017-17564"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2017-17565"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2017-17566"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2017-18030"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2017-5715"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2017-5753"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2017-5754"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2018-5683"}],"related":["CVE-2017-15595","CVE-2017-17563","CVE-2017-17564","CVE-2017-17565","CVE-2017-17566","CVE-2017-18030","CVE-2017-5715","CVE-2017-5753","CVE-2017-5754","CVE-2018-5683"],"summary":"Security update for xen"}