UBUNTU-CVE-2022-49395

In the Linux kernel, the following vulnerability has been resolved: um: Fix out-of-bounds read in LDT setup syscallstubdata expects the datacount parameter to be the number of longs, not bytes. ================================================================== BUG: KASAN: stack-out-of-bounds in...

CVE-2022-49395 um: Fix out-of-bounds read in LDT setup

In the Linux kernel, the following vulnerability has been resolved: um: Fix out-of-bounds read in LDT setup syscallstubdata expects the datacount parameter to be the number of longs, not bytes. ================================================================== BUG: KASAN: stack-out-of-bounds in...

CVE-2022-49395 um: Fix out-of-bounds read in LDT setup

In the Linux kernel, the following vulnerability has been resolved: um: Fix out-of-bounds read in LDT setup syscallstubdata expects the datacount parameter to be the number of longs, not bytes. ================================================================== BUG: KASAN: stack-out-of-bounds in...

CVE-2022-49395

CVE-2022-49395 concerns the Linux kernel, where an out-of-bounds read occurs in LDT setup due to syscall_stub_data() treating data_count as bytes instead of longs. This yields a 128-byte read on the stack (local to swapper/1) and is triggered during LDT entry initialization. Public advisories fro...

K13331647: Linux kernel vulnerability CVE-2019-13233

Security Advisory Description In arch/x86/lib/insn-eval.c in the Linux kernel before 5.1.9, there is a use-after-free for access to an LDT entry because of a race condition between modifyldt and a BR exception for an MPX bounds violation. CVE-2019-13233 Impact There is no impact; F5 products are...

SUSE CVE-2008-3247

The LDT implementation in the Linux kernel 2.6.25.x before 2.6.25.11 on x8664 platforms uses an incorrect size for ldtdesc, which allows local users to cause a denial of service system crash or possibly gain privileges via unspecified vectors...

SUSE CVE-2010-3698

The KVM implementation in the Linux kernel before 2.6.36 does not properly reload the FS and GS segment registers, which allows host OS users to cause a denial of service host OS crash via a KVMRUN ioctl call in conjunction with a modified Local Descriptor Table LDT...

SUSE CVE-2010-4255

The fixuppagefault function in arch/x86/traps.c in Xen 4.0.1 and earlier on 64-bit platforms, when paravirtualization is enabled, does not verify that kernel mode is used to call the handlegdtldtmappingfault function, which allows guest OS users to cause a denial of service host OS BUGON via a...

SUSE CVE-2017-17053

The initnewcontext function in arch/x86/include/asm/mmucontext.h in the Linux kernel before 4.12.10 does not correctly handle errors from LDT table allocation when forking a new process, allowing a local attacker to achieve a use-after-free or possibly have unspecified other impact by running a...

GSD-2022-1004056 um: Fix out-of-bounds read in LDT setup

um: Fix out-of-bounds read in LDT setup This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v4.9.318 by commit...

GSD-2022-1003550 um: Fix out-of-bounds read in LDT setup

um: Fix out-of-bounds read in LDT setup This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.10.121 by commit...

GSD-2022-1003005 um: Fix out-of-bounds read in LDT setup

um: Fix out-of-bounds read in LDT setup This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.17.14 by commit...

GSD-2022-1002654 um: Fix out-of-bounds read in LDT setup

um: Fix out-of-bounds read in LDT setup This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.18.3 by commit...

Malicious Barcode Scanner App

Interesting story about a barcode scanner app that has been pushing malware on to Android phones. The app is called Barcode Scanner. Its been around since 2017 and is owned by the Ukrainian company Lavabird Ldt. But a December 2020 update included some new features: However, a rash of malicious...

kernel: use-after-free in arch/x86/lib/insn-eval.c

A vulnerability was found in the arch/x86/lib/insn-eval.c function in the Linux kernel. An attacker could corrupt the memory due to a flaw in use-after-free access to an LDT entry caused by a race condition between modifyldt and a BR exception for an MPX bounds violation...

kernel: use-after-free in arch/x86/lib/insn-eval.c

A vulnerability was found in the arch/x86/lib/insn-eval.c function in the Linux kernel. An attacker could corrupt the memory due to a flaw in use-after-free access to an LDT entry caused by a race condition between modifyldt and a BR exception for an MPX bounds violation...

CVE-2017-17053

The initnewcontext function in arch/x86/include/asm/mmucontext.h in the Linux kernel, before 4.12.10, does not correctly handle errors from LDT table allocation when forking a new process. This could allow a local attacker to achieve a use-after-free or possibly have unspecified other impact by...

CVE-2019-18425

An issue was discovered in Xen through 4.12.x allowing 32-bit PV guest OS users to gain guest OS privileges by installing and using descriptors. There is missing descriptor table limit checking in x86 PV emulation. When emulating certain PV guest operations, descriptor table accesses are performe...

PT-2019-4839 · Xen +1 · Xen +1

Name of the Vulnerable Software and Affected Versions: Xen versions 3.2 through 4.12.x Description: The issue is related to an error in the x86 PV emulation of the Xen hypervisor, specifically a missing check for the descriptor table limit. This could allow a remote attacker to access confidentia...

USN-4093-1 linux, linux-hwe, linux-azure, linux-gcp, linux-kvm, linux-raspi2, linux-snapdragon vulnerabilities

It was discovered that a heap buffer overflow existed in the Marvell Wireless LAN device driver for the Linux kernel. An attacker could use this to cause a denial of service system crash or possibly execute arbitrary code. CVE-2019-10126 Andrei Vlad Lutas and Dan Lutas discovered that some x86...