Test ID:	1.3.6.1.4.1.25623.1.0.845065
Category:	Ubuntu Local Security Checks
Title:	Ubuntu: Security Advisory (USN-5073-2)
Summary:	The remote host is missing an update for the 'linux-gcp, linux-gcp-4.15' package(s) announced via the USN-5073-2 advisory.
Description:	Summary: The remote host is missing an update for the 'linux-gcp, linux-gcp-4.15' package(s) announced via the USN-5073-2 advisory. Vulnerability Insight: Maxim Levitsky and Paolo Bonzini discovered that the KVM hypervisor implementation for AMD processors in the Linux kernel allowed a guest VM to disable restrictions on VMLOAD/VMSAVE in a nested guest. An attacker in a guest VM could use this to read or write portions of the host's physical memory. (CVE-2021-3656) Maxim Levitsky discovered that the KVM hypervisor implementation for AMD processors in the Linux kernel did not properly prevent a guest VM from enabling AVIC in nested guest VMs. An attacker in a guest VM could use this to write to portions of the host's physical memory. (CVE-2021-3653) Norbert Slusarek discovered that the CAN broadcast manager (bcm) protocol implementation in the Linux kernel did not properly initialize memory in some situations. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2021-34693) Murray McAllister discovered that the joystick device interface in the Linux kernel did not properly validate data passed via an ioctl(). A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code on systems with a joystick device registered. (CVE-2021-3612) It was discovered that the Virtio console implementation in the Linux kernel did not properly validate input lengths in some situations. A local attacker could possibly use this to cause a denial of service (system crash). (CVE-2021-38160) Affected Software/OS: 'linux-gcp, linux-gcp-4.15' package(s) on Ubuntu 16.04, Ubuntu 18.04. Solution: Please install the updated package(s). CVSS Score: 7.2 CVSS Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C
Cross-Ref:	Common Vulnerability Exposure (CVE) ID: CVE-2021-34693 Debian Security Information: DSA-4941 (Google Search) https://www.debian.org/security/2021/dsa-4941 https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=5e87ddbe3942e27e939bdc02deb8579b0cbd8ecc https://lore.kernel.org/netdev/trinity-87eaea25-2a7d-4aa9-92a5-269b822e5d95-1623609211076@3c-app-gmx-bs04/T/ https://lists.debian.org/debian-lts-announce/2021/07/msg00014.html https://lists.debian.org/debian-lts-announce/2021/07/msg00016.html https://lists.debian.org/debian-lts-announce/2021/07/msg00015.html http://www.openwall.com/lists/oss-security/2021/06/15/1 Common Vulnerability Exposure (CVE) ID: CVE-2021-3612 https://security.netapp.com/advisory/ntap-20210805-0005/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/YKGI562LFV5MESTMVTCG5RORSBT6NGBN/ https://bugzilla.redhat.com/show_bug.cgi?id=1974079 https://lore.kernel.org/linux-input/20210620120030.1513655-1-avlarkin82@gmail.com/ https://www.oracle.com/security-alerts/cpujul2022.html https://lists.debian.org/debian-lts-announce/2021/10/msg00010.html https://lists.debian.org/debian-lts-announce/2021/12/msg00012.html Common Vulnerability Exposure (CVE) ID: CVE-2021-3653 http://packetstormsecurity.com/files/165477/Kernel-Live-Patch-Security-Notice-LSN-0083-1.html https://bugzilla.redhat.com/show_bug.cgi?id=1983686 https://www.openwall.com/lists/oss-security/2021/08/16/1 Common Vulnerability Exposure (CVE) ID: CVE-2021-3656 https://bugzilla.redhat.com/show_bug.cgi?id=1983988 https://git.kernel.org/pub/scm/virt/kvm/kvm.git/commit/?id=c7dfa4009965a9b2d7b329ee970eb8da0d32f0bc https://github.com/torvalds/linux/commit/c7dfa4009965a9b2d7b329ee970eb8da0d32f0bc Common Vulnerability Exposure (CVE) ID: CVE-2021-38160 Debian Security Information: DSA-4978 (Google Search) https://www.debian.org/security/2021/dsa-4978 https://access.redhat.com/security/cve/cve-2021-38160 https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13.4 https://github.com/torvalds/linux/commit/d00d8da5869a2608e97cfede094dfc5e11462a46
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