istio/istio: authorization bypass when using AUTO_PASSTHROUGH

An authorization bypass vulnerability was found in istio. When the istio gateway is configured with TLS mode AUTOPASSTHROUGH, it is possible for a malicious user to bypass the authorization checks and gain access to protected services. The highest threat from this vulnerability is to data...

Istio 授权问题漏洞

Istio is a set of open platforms for connecting, managing, and securing microservices. Istio is vulnerable to an authorization issue. The vulnerability stems from the fact that when the istio gateway is configured in TLS mode "AUTOPASSTHROUGH", it is possible for an attacker to bypass authorizati...

SUSE SLED15 / SLES15 Security Update : qemu (SUSE-SU-2021:0521-1)

This update for qemu fixes the following issues : Fixed potential privilege escalation in virtfs CVE-2021-20181 bsc1182137 Fixed out-of-bound access in iscsi CVE-2020-11947 bsc1180523 Fixed out-of-bound access in vmxnet3 emulation CVE-2021-20203 bsc1181639 Fixed out-of-bound access in ARM interru...

SUSE-SU-2021:0521-1 Security update for qemu

This update for qemu fixes the following issues: - Fixed potential privilege escalation in virtfs CVE-2021-20181 bsc1182137 - Fixed out-of-bound access in iscsi CVE-2020-11947 bsc1180523 - Fixed out-of-bound access in vmxnet3 emulation CVE-2021-20203 bsc1181639 - Fixed out-of-bound access in ARM...

CVE-2020-22840

Open redirect vulnerability in b2evolution CMS version prior to 6.11.6 allows an attacker to perform malicious open redirects to an attacker controlled resource via redirectto parameter in emailpassthrough.php...

CVE-2020-22840

Open redirect vulnerability in b2evolution CMS version prior to 6.11.6 allows an attacker to perform malicious open redirects to an attacker controlled resource via redirectto parameter in emailpassthrough.php...

Citrix Hypervisor Security Update

Description of Problem A security issue has been identified that may allow privileged code running in a guest VM to which a PCI passthrough device has been allocated to cause other VMs with PCI passthrough devices to fail to boot, crash or become unresponsive. This only applies to guest VMs where...

ALPINE-CVE-2021-3308

An issue was discovered in Xen 4.12.3 through 4.12.4 and 4.13.1 through 4.14.x. An x86 HVM guest with PCI pass through devices can force the allocation of all IDT vectors on the system by rebooting itself with MSI or MSI-X capabilities enabled and entries setup. Such reboots will leak any vectors...

DEBIAN-CVE-2021-3308

An issue was discovered in Xen 4.12.3 through 4.12.4 and 4.13.1 through 4.14.x. An x86 HVM guest with PCI pass through devices can force the allocation of all IDT vectors on the system by rebooting itself with MSI or MSI-X capabilities enabled and entries setup. Such reboots will leak any vectors...

UBUNTU-CVE-2021-3308

An issue was discovered in Xen 4.12.3 through 4.12.4 and 4.13.1 through 4.14.x. An x86 HVM guest with PCI pass through devices can force the allocation of all IDT vectors on the system by rebooting itself with MSI or MSI-X capabilities enabled and entries setup. Such reboots will leak any vectors...

CVE-2021-3308

An issue was discovered in Xen 4.12.3 through 4.12.4 and 4.13.1 through 4.14.x. An x86 HVM guest with PCI pass through devices can force the allocation of all IDT vectors on the system by rebooting itself with MSI or MSI-X capabilities enabled and entries setup. Such reboots will leak any vectors...

ALPINE-CVE-2020-29567

An issue was discovered in Xen 4.14.x. When moving IRQs between CPUs to distribute the load of IRQ handling, IRQ vectors are dynamically allocated and de-allocated on the relevant CPUs. De-allocation has to happen when certain constraints are met. If these conditions are not met when first checke...

Citrix Hypervisor Security Update

Description of Problem A security issue has been identified that may allow privileged code running in a guest VM to compromise the host. This issue is limited to only those guest VMs where the host administrator has explicitly assigned a PCI passthrough device to the guest VM. The issue has the...

Citrix Hypervisor Security Update

Description of Problem Two issues have been identified in Citrix Hypervisor that may, if exploited, allow privileged code in an HVM guest VM to compromise or crash the host. These issues only apply in specific configurations; furthermore, Citrix believes that there would be significant difficulty...

SUSE-SU-2020:14521-1 Security update for xen

This update for xen fixes the following issues: - CVE-2020-0543: Fixed a leak of Special Register Buffer Data Sampling SRBDS aka 'CrossTalk' bsc1172205,XSA-320 - CVE-2020-14364: Fixed an out-of-bounds read/write access while processing usb packets bsc1175534. - CVE-2020-15565: Fixed an issue cach...

x86: Race condition in Xen mapping code

ISSUE DESCRIPTION The Xen code handling the updating of the hypervisor's own pagetables tries to use 2MiB and 1GiB superpages as much as possible to maximize TLB efficiency. Some of the operations for checking and coalescing superpages take non-negligible amount of time; to avoid potential lock...

Fedora 31 : xen (2020-d46fe34349)

x86 pv: Crash when handling guest access to MSRMISCENABLE XSA-333, CVE-2020-25602 1881619 Missing unlock in XENMEMacquireresource error path XSA-334, CVE-2020-25598 1881616 race when migrating timers between x86 HVM vCPU-s XSA-336, CVE-2020-25604 1881618 PCI passthrough code reading back hardware...

OPENSUSE-SU-2020:1608-1 Security update for xen

This update for xen fixes the following issues: - CVE-2020-25602: Fixed an issue where there was a crash when handling guest access to MSRMISCENABLE was thrown bsc1176339,XSA-333 - CVE-2020-25598: Added a missing unlock in XENMEMacquireresource error path bsc1176341,XSA-334 - CVE-2020-25604: Fixe...

Fedora 32 : xen (2020-f668e579be)

x86 pv: Crash when handling guest access to MSRMISCENABLE XSA-333, CVE-2020-25602 1881619 Missing unlock in XENMEMacquireresource error path XSA-334, CVE-2020-25598 1881616 race when migrating timers between x86 HVM vCPU-s XSA-336, CVE-2020-25604 1881618 PCI passthrough code reading back hardware...

SUSE-SU-2020:2789-1 Security update for xen

This update for xen fixes the following issues: - CVE-2020-25604: Fixed a race condition when migrating timers between x86 HVM vCPU-s bsc1176343,XSA-336 - CVE-2020-25595: Fixed an issue where PCI passthrough code was reading back hardware registers bsc1176344,XSA-337 - CVE-2020-25597: Fixed an...