Xen Denial of Service Vulnerability (CNVD-2020-07295)

Xen is an open source virtual machine monitor product. A denial of service vulnerability exists in Xen 4.12. and earlier versions. The vulnerability stems from improper handling of certain bit iterations. An attacker could exploit this vulnerability to cause a denial of service...

CVE-2019-19582

An issue was discovered in Xen through 4.12.x allowing x86 guest OS users to cause a denial of service infinite loop because certain bit iteration is mishandled. In a number of places bitmaps are being used by the hypervisor to track certain state. Iteration over all bits involves functions which...

CVE-2019-19581

An issue was discovered in Xen through 4.12.x allowing 32-bit Arm guest OS users to cause a denial of service out-of-bounds access because certain bit iteration is mishandled. In a number of places bitmaps are being used by the hypervisor to track certain state. Iteration over all bits involves...

CVE-2019-19581

An issue was discovered in Xen through 4.12.x allowing 32-bit Arm guest OS users to cause a denial of service out-of-bounds access because certain bit iteration is mishandled. In a number of places bitmaps are being used by the hypervisor to track certain state. Iteration over all bits involves...

DEBIAN-CVE-2019-19581

An issue was discovered in Xen through 4.12.x allowing 32-bit Arm guest OS users to cause a denial of service out-of-bounds access because certain bit iteration is mishandled. In a number of places bitmaps are being used by the hypervisor to track certain state. Iteration over all bits involves...

Out-of-bounds

An issue was discovered in Xen through 4.12.x allowing 32-bit Arm guest OS users to cause a denial of service out-of-bounds access because certain bit iteration is mishandled. In a number of places bitmaps are being used by the hypervisor to track certain state. Iteration over all bits involves...

CVE-2019-19581

An issue was discovered in Xen through 4.12.x allowing 32-bit Arm guest OS users to cause a denial of service out-of-bounds access because certain bit iteration is mishandled. In a number of places bitmaps are being used by the hypervisor to track certain state. Iteration over all bits involves...

CVE-2019-19581

An issue was discovered in Xen through 4.12.x allowing 32-bit Arm guest OS users to cause a denial of service out-of-bounds access because certain bit iteration is mishandled. In a number of places bitmaps are being used by the hypervisor to track certain state. Iteration over all bits involves...

CVE-2019-19581

CVE-2019-19581 affects the Xen hypervisor (notably up to 4.12.x) and is described in connected advisories as a find_next_bit() issue causing an out-of-bounds access in 32-bit ARM bitmaps when the bit count is a multiple of 32. This can lead to a hypervisor crash or denial of service. 32-bit ARM s...

CVE-2019-19582

An issue was discovered in Xen through 4.12.x allowing x86 guest OS users to cause a denial of service infinite loop because certain bit iteration is mishandled. In a number of places bitmaps are being used by the hypervisor to track certain state. Iteration over all bits involves functions which...

New PlunderVolt Attack Targets Intel SGX Enclaves by Tweaking CPU Voltage

A team of cybersecurity researchers demonstrated a novel yet another technique to hijack Intel SGX, a hardware-isolated trusted space on modern Intel CPUs that encrypts extremely sensitive data to shield it from attackers even when a system gets compromised. Dubbed Plundervolt and tracked as...

Security Update for Microsoft Office 2016 (KB4484180) 64-Bit Edition

A security vulnerability exists in Microsoft Office 2016 64-Bit Edition that could allow arbitrary code to run when a maliciously modified file is opened. This update resolves that vulnerability...

Security Update for Microsoft Excel 2013 (KB4484190) 32-Bit Edition

A security vulnerability exists in Microsoft Excel 2013 32-Bit Edition that could allow arbitrary code to run when a maliciously modified file is opened. This update resolves that vulnerability...

Security Update for Microsoft Office 2016 (KB4484180) 32-Bit Edition

A security vulnerability exists in Microsoft Office 2016 32-Bit Edition that could allow arbitrary code to run when a maliciously modified file is opened. This update resolves that vulnerability...

Security Update for Microsoft Word 2016 (KB4484169) 64-Bit Edition

A security vulnerability exists in Microsoft Word 2016 64-Bit Edition that could allow arbitrary code to run when a maliciously modified file is opened. This update resolves that vulnerability...

Security Update for Microsoft Office 2013 (KB4484186) 32-Bit Edition

A security vulnerability exists in Microsoft Office 2013 32-Bit Edition that could allow arbitrary code to run when a maliciously modified file is opened. This update resolves that vulnerability...

kernel: Out-of-bounds write via userland offsets in ebt_entry struct in netfilter/ebtables.c

A flaw was found in the Linux kernel's implementation of 32-bit syscall interface for bridging. This allowed a privileged user to arbitrarily write to a limited range of kernel memory...

kernel: Missing check in fs/inode.c:inode_init_owner() does not clear SGID bit on non-directories for non-members

A vulnerability was found in the fs/inode.c:inodeinitowner function logic of the LInux kernel that allows local users to create files with an unintended group ownership and with group execution and SGID permission bits set, in a scenario where a directory is SGID and belongs to a certain group an...

kernel: Missing check in fs/inode.c:inode_init_owner() does not clear SGID bit on non-directories for non-members

A vulnerability was found in the fs/inode.c:inodeinitowner function logic of the LInux kernel that allows local users to create files with an unintended group ownership and with group execution and SGID permission bits set, in a scenario where a directory is SGID and belongs to a certain group an...

Integer Overflow

OpenSSL is vulnerable to integer overflows. It exists due to a mishandling of overflow in rsaz512sqr for the x6464 Montgomery squaring procedure used in exponentiation with 512-bit moduli...