973 matches found
Carlo Gavazzi Automation VMU-C EM and VMU-C PV suffer from information disclosure vulnerabilities
Carlo Gavazzi Automation VMU-C EM and VMU-C PV are control modules in the automation products of the Italian company Carlo Gavazzi Automation. The Carlo Gavazzi Automation VMU-C EM and VMU-C PV store sensitive information in clear text, allowing remote attackers to exploit the vulnerability to re...
Cross-Site Request Forgery Vulnerability in Carlo Gavazzi Automation VMU-C EM and VMU-C PV
Carlo Gavazzi Automation VMU-C EM and VMU-C PV are control modules in the automation products of the Italian company Carlo Gavazzi Automation. A cross-site request forgery vulnerability exists in the Carlo Gavazzi Automation VMU-C EM and VMU-C PV. A remote attacker can exploit the vulnerability b...
Carlo Gavazzi VMU-C EM and VMU-C PV
CVSS V3 10 ATTENTION: Remotely exploitable/low skill level to exploit. Vendor: Carlo Gavazzi Equipment: VMU-C EM, VMU-C PV Vulnerabilities: Access Control Flaws, CSRF, Sensitive Information Stored In Clear Text AFFECTED PRODUCTS Carlo Gavazzi reports that the vulnerabilities affect the following...
Updated xen packages fix security vulnerability
This xen update is based on upstream 4.5.5 maintenance release, and fixes the following security issues: The qemu implementation in libvirt before 1.3.0 and Xen allows local guest OS users to cause a denial of service host disk consumption by writing to stdout or stderr CVE-2014-3672 The xrstor...
Fedora 25 : xen (2016-92e3ea2d1b)
two security flaws 1406840 x86 PV guests may be able to mask interrupts XSA-202, CVE-2016-10024 x86: missing NULL pointer check in VMFUNC emulation XSA-203, CVE-2016-10025 x86: Mishandling of SYSCALL singlestep during emulation XSA-204, CVE-2016-10013 1406260 Note that Tenable Network Security ha...
SUSE SLED12 / SLES12 Security Update : xen (SUSE-SU-2016:3208-1)
This update for xen fixes the following issues : - A Mishandling of SYSCALL singlestep during emulation which could have lead to privilege escalation. XSA-204, bsc1016340, CVE-2016-10013 - CMPXCHG8B emulation failed to ignore operand size override which could have lead to information disclosure...
OracleVM 3.2 : Unbreakable / etc (OVMSA-2016-0181)
The remote OracleVM system is missing necessary patches to address critical security updates : - x86/iopl/64: properly context-switch IOPL on Xen PV Andy Lutomirski Orabug: 25269184 CVE-2016-3157 - net: Fix use after free in the recvmmsg exit path Arnaldo Carvalho de Melo Orabug: 25298618...
FreeBSD : xen-kernel -- x86 PV guests may be able to mask interrupts (3ae078ca-c7eb-11e6-ae1b-002590263bf5)
The Xen Project reports : Certain PV guest kernel operations page table writes in particular need emulation, and use Xen's general x86 instruction emulator. This allows a malicious guest kernel which asynchronously modifies its instruction stream to effect the clearing of EFLAGS.IF from the state...
Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2016-3656)
The remote Oracle Linux 6 / 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2016-3656 advisory. - x86/iopl/64: properly context-switch IOPL on Xen PV Andy Lutomirski Orabug: 25269176 CVE-2016-3157 CVE-2016-3157 Tenable has extracted the...
x86 PV guests may be able to mask interrupts
ISSUE DESCRIPTION Certain PV guest kernel operations page table writes in particular need emulation, and use Xen's general x86 instruction emulator. This allows a malicious guest kernel which asynchronously modifies its instruction stream to effect the clearing of EFLAGS.IF from the state used to...
xen-kernel -- x86 PV guests may be able to mask interrupts
The Xen Project reports: Certain PV guest kernel operations page table writes in particular need emulation, and use Xen's general x86 instruction emulator. This allows a malicious guest kernel which asynchronously modifies its instruction stream to effect the clearing of EFLAGS.IF from the state...
x86: Mishandling of SYSCALL singlestep during emulation
ISSUE DESCRIPTION The typical behaviour of singlestepping exceptions is determined at the start of the instruction, with a DB trap being raised at the end of the instruction. SYSCALL and SYSRET, although we don't implement it behave differently because the typical behaviour allows userspace to...
qemu ioport array overflow
ISSUE DESCRIPTION The code in qemu which implements ioport read/write looks up the specified ioport address in a dispatch table. The argument to the dispatch function is a uint32t, and is used without a range check, even though the table has entries for only 2^16 ioports. When qemu is used as a...
FreeBSD : xen-kernel -- x86: Disallow L3 recursive pagetable for 32-bit PV guests (45ca25b5-ba4d-11e6-ae1b-002590263bf5)
The Xen Project reports : On real hardware, a 32-bit PAE guest must leave the USER and RW bit clear in L3 pagetable entries, but the pagetable walk behaves as if they were set. The L3 entries are cached in processor registers, and don't actually form part of the pagewalk. When running a 32-bit PV...
x86 segment base write emulation lacking canonical address checks
ISSUE DESCRIPTION Both writes to the FS and GS register base MSRs as well as the WRFSBASE and WRGSBASE instructions require their input values to be canonical, or a GP fault will be raised. When the use of those instructions by the hypervisor was enabled, the previous guard against GP faults havi...
Fedora 25 : xen (2016-1d8429b89f)
fix build problem with glibc 2.24 x86: Disallow L3 recursive pagetable for 32-bit PV guests XSA-185, CVE-2016-7092 x86: Mishandling of instruction pointer truncation during emulation XSA-186, CVE-2016-7093 x86 HVM: Overflow of shctxt-segreg XSA-187, CVE-2016-7094 pandoc documentation has dependen...
util-linux security, bug fix, and enhancement update
2.23.2-33.0.1 - fix Oracle bug 23001516 - backport lscpu: correct the Virtualization type on Xen DomU PV guest - Reviewed-by: Joe Jin 2.23.2-33 - improve patch for 1007734 libblkid realpaths 2.23.2-32 - improve patch for chrt1 deadline support 1298384 - fix 1007734 - blkid shows devices as...
Upgrading to Ubuntu 14.04, RHEL 7 and CentOS 7 Guests
Customers who wish to upgrade existing Linux guests to versions which now operate in HVM mode that is, RHEL7, CentOS 7, and Ubuntu 14.04 should perform an in-guest upgrade. At this point, the upgraded Guest will only run in PV mode - which is not supported and has known issues. Customers should r...
Fedora 23 : xen (2016-1c3374bcb9)
x86: Disallow L3 recursive pagetable for 32-bit PV guests XSA-185, CVE-2016-7092 1374470 x86: Mishandling of instruction pointer truncation during emulation XSA-186, CVE-2016-7093 1374471 x86 HVM: Overflow of shctxt-segreg XSA-187, CVE-2016-7094 1374473 Note that Tenable Network Security has...
