x86: PV guest may crash Xen with XPTI

ISSUE DESCRIPTION The workaround for the Meltdown vulnerability XSA-254 failed to deal with an error code path connecting the INT 80 handling with general exception handling. This results in an unconditional write attempt of the value zero to an address near 2^64, in cases where a PV guest has no...

openSUSE Security Update : the Linux Kernel (openSUSE-2018-377)

The openSUSE Leap 42.3 kernel was updated to 4.4.126 to receive various security and bugfixes. The following security bugs were fixed : - CVE-2018-1091: In the flushtmregstothread function in arch/powerpc/kernel/ptrace.c, a guest kernel crash can be triggered from unprivileged userspace during a...

ROPgadget - This Tool Lets You Search Your Gadgets On Your Binaries To Facilitate Your ROP Exploitation

This tool lets you search your gadgets on your binaries to facilitate your ROP exploitation. ROPgadget supports ELF/PE/Mach-O format on x86, x64, ARM, ARM64, PowerPC, SPARC and MIPS architectures. Since the version 5, ROPgadget has a new core which is written in Python using Capstone disassembly...

Security update for the Linux Kernel (important)

The openSUSE Leap 42.3 kernel was updated to 4.4.126 to receive various security and bugfixes. The following security bugs were fixed: - CVE-2018-1091: In the flushtmregstothread function in arch/powerpc/kernel/ptrace.c, a guest kernel crash can be triggered from unprivileged userspace during a...

AMD Rolls Out Spectre Fixes

AMD said that CPU firmware and Windows 10 patches are now available to safeguard its products against the Spectre security flaw. Mark Papermaster, senior vice president and chief technology officer at AMD, said in a Tuesday post that Spectre fixes are available for AMD customers, who can download...

CVE-2018-9988

ARM mbed TLS before 2.1.11, before 2.7.2, and before 2.8.0 has a buffer over-read in sslparseserverkeyexchange that could cause a crash on invalid input...

UBUNTU-CVE-2018-9988

ARM mbed TLS before 2.1.11, before 2.7.2, and before 2.8.0 has a buffer over-read in sslparseserverkeyexchange that could cause a crash on invalid input...

CVE-2018-9989

ARM mbed TLS before 2.1.11, before 2.7.2, and before 2.8.0 has a buffer over-read in sslparseserverpskhint that could cause a crash on invalid input...

CVE-2018-9988

ARM mbed TLS before 2.1.11, before 2.7.2, and before 2.8.0 has a buffer over-read in sslparseserverkeyexchange that could cause a crash on invalid input...

CVE-2018-9989

ARM mbed TLS before 2.1.11, before 2.7.2, and before 2.8.0 has a buffer over-read in sslparseserverpskhint that could cause a crash on invalid input...

Input validation

ARM mbed TLS before 2.1.11, before 2.7.2, and before 2.8.0 has a buffer over-read in sslparseserverkeyexchange that could cause a crash on invalid input...

CVE-2018-9989

ARM mbed TLS before 2.1.11, before 2.7.2, and before 2.8.0 has a buffer over-read in sslparseserverpskhint that could cause a crash on invalid input...

Input validation

ARM mbed TLS before 2.1.11, before 2.7.2, and before 2.8.0 has a buffer over-read in sslparseserverpskhint that could cause a crash on invalid input...

CVE-2018-9988

ARM mbed TLS before 2.1.11, before 2.7.2, and before 2.8.0 has a buffer over-read in sslparseserverkeyexchange that could cause a crash on invalid input...

CVE-2018-9989

CVE-2018-9989 affects ARM mbed TLS pre-2.1.11, pre-2.7.2, and pre-2.8.0, with a buffer over-read in ssl_parse_server_psk_hint() that could cause a crash on invalid input. The issue is documented across multiple advisories; Debian LTS/DLA-2826 notes fixes in mbedtls 2.4.2-1+deb9u4 for Debian 9, an...

CVE-2018-9989

ARM mbed TLS before 2.1.11, before 2.7.2, and before 2.8.0 has a buffer over-read in sslparseserverpskhint that could cause a crash on invalid input...

CVE-2018-9989

ARM mbed TLS before 2.1.11, before 2.7.2, and before 2.8.0 has a buffer over-read in sslparseserverpskhint that could cause a crash on invalid input...

CVE-2018-9988

ARM mbed TLS before 2.1.11, before 2.7.2, and before 2.8.0 has a buffer over-read in sslparseserverkeyexchange that could cause a crash on invalid input...

CVE-2018-9988

ARM mbed TLS before 2.1.11, before 2.7.2, and before 2.8.0 has a buffer over-read in sslparseserverkeyexchange that could cause a crash on invalid input...

CVE-2018-9988

CVE-2018-9988 affects ARM mbed TLS prior to 2.1.11, 2.7.2, and 2.8.0, with a buffer over-read in ssl_parse_server_key_exchange that could cause a crash on invalid input. Public-branch fixes exist in newer mbed TLS releases, and downstream advisories (e.g., Debian DLA-2826-1) note updates to mitig...