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SUSE 2018 2369 1 Critical: Linux Kernel Live Patch 36 Security Update

An update that fixes two vulnerabilities is now available. . SUSE Security Update: Security update for the Linux Kernel (Live Patch 36 for SLE 12) ______________________________________________________________________________ Announcement ID: SUSE-SU-2018:2369-1 Rating: important References: #1097108 #1099306 Cross-References: CVE-2018-10853 CVE-2018-3646 Affected Products: SUSE Linux Enterprise Server 12-LTSS ______________________________________________________________________________ An update that fixes two vulnerabilities is now available. Description: This update for the Linux Kernel 3.12.61-52_136 fixes several issues. The following security issues were fixed: - CVE-2018-3646: Local attackers in virtualized guest systems could use speculative code patterns on hyperthreaded processors to read data present in the L1 Datacache used by other hyperthreads on the same CPU core, potentially leaking sensitive data, even from other virtual machines or the host system (bsc#1099306). - CVE-2018-10853: A flaw was found in kvm. In which certain instructions such as sgdt/sidt call segmented_write_std didn't propagate access correctly. As such, during userspace induced exception, the guest can incorrectly assume that the exception happened in the kernel and panic. (bsc#1097108). Patch Instructions: To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". Alternatively you can run the command listed for your product: - SUSE Linux Enterprise Server 12-LTSS: zypper in -t patch SUSE-SLE-SERVER-12-2018-1587=1 Package List: - SUSE Linux Enterprise Server 12-LTSS (x86_64): kgraft-patch-3_12_61-52_136-default-3-2.1 kgraft-patch-3_12_61-52_136-xen-3-2.1 References: https://www.suse.com/security/cve/CVE-2018-10853.html https://www.suse.com/security/cve/CVE-2018-3646.html https://bugzilla.suse.com/1097108 https://bugzilla.suse.com/1099306 . SUSE Security Announcement: Kernel Update 42 Fixes Severe Flaws for SLE 15 Platforms. Linux Kernel Update, Critical Security Fix, Patch Instructions. . Severity: Critical. LinuxSecurity.com Team

Aug 16, 2018 •Critical SuSE