SUSE-SU-2019:2902-1 Security update for gdb

This update for gdb fixes the following issues: Update to gdb 8.3.1: jscECO-368 Security issues fixed: - CVE-2019-1010180: Fixed a potential buffer overflow when loading ELF sections larger than the file. bsc1142772 Upgrade libipt from v2.0 to v2.0.1. - Enable librpm for version librpm.so.3...

Kernel: KVM: leak of uninitialized stack contents to guest

An information leakage issue was found in the way Linux kernel's KVM hypervisor handled page fault exceptions while emulating instructions like VMXON, VMCLEAR, VMPTRLD, and VMWRITE with memory address as an operand. It occurs if the operand is a mmio address, as the returned exception object hold...

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...

Windows Kernel - NULL Pointer Dereference in nt!MiOffsetToProtos While Parsing Malformed PE File

Windows Kernel - NULL Pointer Dereference in nt!MiOffsetToProtos While Parsing Malformed PE File We have encountered a Windows kernel crash in nt!MiOffsetToProtos while trying to load a malformed PE image into the process address space as a data file i.e. LoadLibraryExLOADLIBRARYASDATAFILE |...

Microsoft Windows Kernel - NULL Pointer Dereference in nt!MiOffsetToProtos While Parsing Malformed PE File

We have encountered a Windows kernel crash in nt!MiOffsetToProtos while trying to load a malformed PE image into the process address space as a data file i.e. LoadLibraryExLOADLIBRARYASDATAFILE | LOADLIBRARYASIMAGERESOURCE. An example crash log generated after triggering the bug is shown below: -...

Improper access control

On NXP Kinetis KV1x, Kinetis KV3x, and Kinetis K8x devices, Flash Access Controls FAC a software IP protection method for execute-only access can be defeated by leveraging a load instruction inside the execute-only region to expose the protected code into a CPU register...

CVE-2019-15030

In the Linux kernel through 5.2.14 on the powerpc platform, a local user can read vector registers of other users' processes via a Facility Unavailable exception. To exploit the venerability, a local user starts a transaction via the hardware transactional memory instruction tbegin and then...

CVE-2019-14236

On STMicroelectronics STM32L0, STM32L1, STM32L4, STM32F4, STM32F7, and STM32H7 devices, Proprietary Code Read Out Protection PCROP a software IP protection method can be defeated by observing CPU registers and the effect of code/instruction execution...

CVE-2019-14237

The CVE concerns NXP Kinetis KV1x, KV3x, and K8x devices where Flash Access Controls (FAC) execute-only protection can be defeated by observing CPU registers and the effects of code execution. The impact is the circumvention of execute-only protection as described; no specific remediation or patc...

CVE-2019-14236

On STMicroelectronics STM32L0, STM32L1, STM32L4, STM32F4, STM32F7, and STM32H7 devices, Proprietary Code Read Out Protection PCROP a software IP protection method can be defeated by observing CPU registers and the effect of code/instruction execution...

CVE-2018-18056

An issue was discovered in the Texas Instruments TI TM4C, MSP432E and MSP432P microcontroller series. The eXecute-Only-Memory XOM implementation prevents code read-outs on protected memory by generating bus faults. However, single-stepping and using breakpoints is allowed in XOM-protected flash...

Buffer overflow

An issue was discovered in the Texas Instruments TI TM4C, MSP432E and MSP432P microcontroller series. The eXecute-Only-Memory XOM implementation prevents code read-outs on protected memory by generating bus faults. However, single-stepping and using breakpoints is allowed in XOM-protected flash...

USN-4096-1 linux-aws, linux-aws-hwe vulnerability

Andrei Vlad Lutas and Dan Lutas discovered that some x86 processors incorrectly handle SWAPGS instructions during speculative execution. A local attacker could use this to expose sensitive information kernel memory...

kernel: kvm: guest userspace to guest kernel write

A flaw was found in the way Linux kernel KVM hypervisor emulated instructions such as sgdt/sidt/fxsave/fxrstor. It did not check current privilegeCPL level while emulating unprivileged instructions. An unprivileged guest user/process could use this flaw to potentially escalate privileges inside...

kernel: kvm: guest userspace to guest kernel write

A flaw was found in the way Linux kernel KVM hypervisor emulated instructions such as sgdt/sidt/fxsave/fxrstor. It did not check current privilegeCPL level while emulating unprivileged instructions. An unprivileged guest user/process could use this flaw to potentially escalate privileges inside...

The vulnerability of the Linux operating system’s kernel, related to the use of memory after it is freed, allows attackers to increase their privileges.

The vulnerability of the arch/x86/lib/insn-eval.c file in the Linux operating system is related to the use of memory after it has been freed. Exploiting this vulnerability can allow an attacker to increase their privileges...

honggfuzz vulnerability mining technology principle analysis-vulnerability warning-the black bar safety net

Google AFLWinAFL, the libfuzzer and honggfuzz is the most famous of the three based on code coverage fuzzer is. Online on the AFLWinAFLanalysis of the articles more, and on the latter two Analysis Articles less. Before the spring brother has written about honggfuzz article: honggfuzz vulnerabilit...

Microsoft DirectWrite AFDKO - Stack Corruption in OpenType Font Handling Due to Negative nAxes

Microsoft DirectWrite AFDKO - Stack Corruption in OpenType Font Handling Due to Negative nAxes -----===== Background =====----- AFDKO Adobe Font Development Kit for OpenType is a set of tools for examining, modifying and building fonts. The core part of this toolset is a font handling library...

Microsoft DirectWrite / AFDKO - Stack-Based Buffer Overflow in do_set_weight_vector_cube for Large nAxes

-----===== Background =====----- AFDKO Adobe Font Development Kit for OpenType is a set of tools for examining, modifying and building fonts. The core part of this toolset is a font handling library written in C, which provides interfaces for reading and writing Type 1, OpenType, TrueType to some...

UBUNTU-CVE-2019-13233

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...