CVE-2017-7995

Concretely, CVE-2017-7995 affects Xen PV guests prior to 4.3: MMIO access permission checks were performed after accessing MMIO ranges, enabling host PCI device space memory reads and leading to information disclosure. The underlying cause is an error in the get_user function. Public symptom and ...

CVE-2017-7995

Xen PV guest before Xen 4.3 checked access permissions to MMIO ranges only after accessing them, allowing host PCI device space memory reads, leading to information disclosure. This is an error in the getuser function. NOTE: the upstream Xen Project considers versions before 4.5.x to be EOL...

CVE-2017-7995

Xen PV guest before Xen 4.3 checked access permissions to MMIO ranges only after accessing them, allowing host PCI device space memory reads, leading to information disclosure. This is an error in the getuser function. NOTE: the upstream Xen Project considers versions before 4.5.x to be EOL...

grant transfer allows PV guest to elevate privileges

ISSUE DESCRIPTION The GNTTABOPtransfer operation allows one guest to transfer a page to another guest. The internal processing of this, however, does not include zapping the previous type of the page being transferred. This makes it possible for a PV guest to transfer a page previously used as pa...

x86: 64bit PV guest breakout via pagetable use-after-mode-change

ISSUE DESCRIPTION 64-bit PV guests typically use separate root page tables for their kernel and user modes. Hypercalls are accessible to guest kernel context only, which certain hypercall handlers make assumptions on. The IRET hypercall replacing the identically name CPU instruction is used by...

util-linux security and bug fix update

2.23.2-33.0.1.el7u3.2 - fix Oracle bug 23001516 - backport lscpu: correct the Virtualization type on Xen DomU PV guest - Reviewed-by: Joe Jin 2.23.2-33.el73.2 fix CVE-2017-2616 - Sending SIGKILL to other processes with root privileges via su 2.23.2-33.el73.1 - fix 1405238 - findmnt --target...

Xen - Broken Check in memory_exchange() Permits PV Guest Breakout Vulnerability

Exploit for multiple platform in category local exploits Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=1184 This bug report describes a vulnerability in memoryexchange that permits PV guest kernels to write to an arbitrary virtual address with hypervisor privileges. The...

Xen - Broken Check in memory_exchange() Permits PV Guest Breakout

Xen - Broken Check in memoryexchange Permits PV Guest Breakout Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=1184 This bug report describes a vulnerability in memoryexchange that permits PV guest kernels to write to an arbitrary virtual address with hypervisor privileges. The...

Xen - Broken Check in 'memory_exchange()' Permits PV Guest Breakout

Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=1184 This bug report describes a vulnerability in memoryexchange that permits PV guest kernels to write to an arbitrary virtual address with hypervisor privileges. The vulnerability was introduced through a broken fix for...

Fedora 25 : xen (2017-054729ab08)

Qemu: 9pfs: host memory leakage via v9fscreate CVE-2017-7377 1437873 x86: broken check in memoryexchange permits PV guest breakout XSA-212, CVE-2017-7228 1438804 Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website. Tenabl...

Xen: broken check in memory_exchange() permits PV guest breakout（CVE-2017-7228）

Detailed analysis: Pandavirtualization: Exploiting the Xen hypervisor This bug report describes a vulnerability in memoryexchange that permits PV guest kernels to write to an arbitrary virtual address with the hypervisor privileges. The vulnerability was introduced through a broken fix for...

FreeBSD : xen-kernel -- broken check in memory_exchange() permits PV guest breakout (90becf7c-1acf-11e7-970f-002590263bf5)

The Xen Project reports : The XSA-29 fix introduced an insufficient check on XENMEMexchange input, allowing the caller to drive hypervisor memory accesses outside of the guest provided input/output arrays. A malicious or buggy 64-bit PV guest may be able to access all of system memory, allowing f...

x86: broken check in memory_exchange() permits PV guest breakout

ISSUE DESCRIPTION The XSA-29 fix introduced an insufficient check on XENMEMexchange input, allowing the caller to drive hypervisor memory accesses outside of the guest provided input/output arrays. IMPACT A malicious or buggy 64-bit PV guest may be able to access all of system memory, allowing fo...

xen-kernel -- broken check in memory_exchange() permits PV guest breakout

The Xen Project reports: The XSA-29 fix introduced an insufficient check on XENMEMexchange input, allowing the caller to drive hypervisor memory accesses outside of the guest provided input/output arrays. A malicious or buggy 64-bit PV guest may be able to access all of system memory, allowing fo...

SUSE SLES11 Security Update : xen (SUSE-SU-2017:0718-1)

This update for xen fixes several issues. These security issues were fixed : - CVE-2016-10155: The virtual hardware watchdog 'wdti6300esb' was vulnerable to a memory leakage issue allowing a privileged user to cause a DoS and/or potentially crash the Qemu process on the host bsc1024183 -...

CVE-2017-5144

An issue was discovered in Carlo Gavazzi VMU-C EM prior to firmware Version A11U05, and VMU-C PV prior to firmware Version A17. The access control flaw allows access to most application functions without authentication...

CVE-2017-5146

An issue was discovered in Carlo Gavazzi VMU-C EM prior to firmware Version A11U05, and VMU-C PV prior to firmware Version A17. Sensitive information is stored in clear-text...

Code injection

An issue was discovered in Carlo Gavazzi VMU-C EM prior to firmware Version A11U05, and VMU-C PV prior to firmware Version A17. Sensitive information is stored in clear-text...

Authentication flaw

An issue was discovered in Carlo Gavazzi VMU-C EM prior to firmware Version A11U05, and VMU-C PV prior to firmware Version A17. The access control flaw allows access to most application functions without authentication...

Cross site request forgery (csrf)

An issue was discovered in Carlo Gavazzi VMU-C EM prior to firmware Version A11U05, and VMU-C PV prior to firmware Version A17. Successful exploitation of this CROSS-SITE REQUEST FORGERY CSRF vulnerability can allow execution of unauthorized actions on the device such as configuration parameter...