MGASA-2018-0187

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MGASA-2018-0187

Summary: Updated kernel packages fix security vulnerabilities

Details: This kernel update is based on the upstream 4.14.30 and fixes at least the following security issues: The KPTI mitigation for Meltdown (CVE-2017-5754) on 32bit x86 has been updated to revision 4. A flaw was found in the Linux kernel implementation of 32 bit syscall interface for bridging allowing a privileged user to arbitrarily write to a limited range of kernel memory. This flaw can be exploited not only by a system's privileged user (a real "root" user), but also by an attacker who is a privileged user (a "root" user) in a user+network namespace (CVE-2018-1068). A race condition vulnerability exists in the sound system, that can lead to a deadlock and denial of service condition (CVE-2018-1000004). Other changes in this update: 3rdparty rtl8812au driver has been updated to v5.2.20 (mga#22808) and adds fixes for KRACK security issue. For other upstream fixes in this update, read the referenced changelogs.

References: https://advisories.mageia.org/MGASA-2018-0187.html, https://bugs.mageia.org/show_bug.cgi?id=22832, https://bugs.mageia.org/show_bug.cgi?id=22808, https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.26, https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.27, https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.28, https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.29, https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.30