MGASA-2019-0288 - Updated kernel packages fix security vulnerabilities Publication date: 21 Sep 2019 URL: https://advisories.mageia.org/MGASA-2019-0288.html Type: security Affected Mageia releases: 7 CVE: CVE-2019-14814, CVE-2019-14815, CVE-2019-14816, CVE-2019-14821, CVE-2019-14835 This kernel update is based on the upstream 5.2.16 and fixes atleast the following security issues: There is heap-based buffer overflow in the marvell wifi chip driver that allows local users to cause a denial of service(system crash) or possibly execute arbitrary code (CVE-2019-14814, CVE-2019-14815, CVE-2019-14816). An out-of-bounds access issue was found in the way Linux kernel's KVM hypervisor implements the Coalesced MMIO write operation. It operates on an MMIO ring buffer 'struct kvm_coalesced_mmio' object, wherein write indices 'ring->first' and 'ring->last' value could be supplied by a host user-space process. An unprivileged host user or process with access to '/dev/kvm' device could use this flaw to crash the host kernel, resulting in a denial of service or potentially escalating privileges on the system (CVE-2019-14821). A buffer overflow flaw was found in the way Linux kernel's vhost functionality that translates virtqueue buffers to IOVs, logged the buffer descriptors during migration. A privileged guest user able to pass descriptors with invalid length to the host when migration is underway, could use this flaw to increase their privileges on the host (CVE-2019-14835). WireGuard has been updated to 0.0.20190913. For other uptstream fixes in this update, see the referenced changelogs. References: - https://bugs.mageia.org/show_bug.cgi?id=25454 - https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-5.2.14 - https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-5.2.15 - https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-5.2.16 - https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-14814 - https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-14815 - https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-14816 - https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-14821 - https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-14835 SRPMS: - 7/core/kernel-5.2.16-2.mga7 - 7/core/kernel-userspace-headers-5.2.16-2.mga7 - 7/core/kmod-virtualbox-6.0.10-10.mga7 - 7/core/kmod-xtables-addons-3.3-66.mga7 - 7/core/wireguard-tools-0.0.20190913-1.mga7