CVE-2020-29570

An issue was discovered in Xen through 4.14.x. Recording of the per-vCPU control block mapping maintained by Xen and that of pointers into the control block is reversed. The consumer assumes, seeing the former initialized, that the latter are also ready for use. Malicious or buggy guest kernels c...

CVE-2021-26342

In SEV guest VMs, the CPU may fail to flush the Translation Lookaside Buffer TLB following a particular sequence of operations that includes creation of a new virtual machine control block VMCB. The failure to flush the TLB may cause the microcode to use stale TLB translations which may allow for...

CVE-2022-29968

An issue was discovered in the Linux kernel through 5.17.5. iorwinitfile in fs/iouring.c lacks initialization of kiocb-private...

The vulnerability of the Application Control Block in FortiOS operating systems allows a perpetrator to gain unauthorized access to protected information.

The vulnerability of the Application Control Block in FortiOS operating systems is related to insufficient protection of operational data. Exploiting this vulnerability can allow an attacker, operating remotely, to gain unauthorized access to protected information...

PT-2021-26871

Name of the Vulnerable Software and Affected Versions Linux Kernel versions prior to v4.14.258 Description The issue is related to the IPv6 socket control block. It was introduced in version v4.14.98 and fixed in version v4.14.258. The actual impact and attack plausibility have not yet been prove...

PT-2021-27059

Name of the Vulnerable Software and Affected Versions Linux Kernel versions prior to v5.15.8 Description The issue is related to the IPv6 socket control block. It was introduced in version v5.0 and fixed in version v5.15.8. The actual impact and attack plausibility have not yet been proven...

PT-2021-26925

Name of the Vulnerable Software and Affected Versions Linux Kernel versions prior to v5.4.165 Description The issue is related to the IPv6 socket control block. It was introduced in version v5.0 and fixed in version v5.4.165. The actual impact and attack plausibility have not yet been proven...

PT-2021-26895

Name of the Vulnerable Software and Affected Versions Linux Kernel versions prior to v4.19.221 Description The issue is related to the IPv6 socket control block. It was introduced in version v4.19.20 and fixed in version v4.19.221. The actual impact and attack plausibility have not yet been prove...

PT-2021-26976

Name of the Vulnerable Software and Affected Versions Linux Kernel versions prior to v5.10.85 Description The issue is related to the IPv6 socket control block. It was introduced in version v5.0 and fixed in Linux Kernel version v5.10.85. The actual impact and attack plausibility have not yet bee...

kernel: SVM nested virtualization issue in KVM (VMLOAD/VMSAVE)

A flaw was found in the KVM's AMD code for supporting SVM nested virtualization. The flaw occurs when processing the VMCB virtual machine control block provided by the L1 guest to spawn/handle a nested guest L2. Due to improper validation of the "virtext" field, this issue could allow a malicious...

kernel: SVM nested virtualization issue in KVM (VMLOAD/VMSAVE)

A flaw was found in the KVM's AMD code for supporting SVM nested virtualization. The flaw occurs when processing the VMCB virtual machine control block provided by the L1 guest to spawn/handle a nested guest L2. Due to improper validation of the "virtext" field, this issue could allow a malicious...

kernel: SVM nested virtualization issue in KVM (AVIC support)

A flaw was found in the KVM's AMD code for supporting SVM nested virtualization. The flaw occurs when processing the VMCB virtual machine control block provided by the L1 guest to spawn/handle a nested guest L2. Due to improper validation of the "intctl" field, this issue could allow a malicious ...

kernel: SVM nested virtualization issue in KVM (VMLOAD/VMSAVE)

A flaw was found in the KVM's AMD code for supporting SVM nested virtualization. The flaw occurs when processing the VMCB virtual machine control block provided by the L1 guest to spawn/handle a nested guest L2. Due to improper validation of the "virtext" field, this issue could allow a malicious...

arch/x86/kvm/svm/nested.c in the Linux kernel before 5.11.12 has a use-after-free in which an AMD KVM guest can bypass access control on host OS MSRs when there are nested guests aka CID-a58d9166a756. This occurs because of a TOCTOU race condition associated with a VMCB12 double fetch in nested_svm_vmrun.

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Juniper Junos OS Vulnerability (JSA11178)

The version of Junos OS installed on the remote host is affected by a vulnerability as referenced in the JSA11178 advisory. - In Juniper Networks Junos OS there are various cases in the IPv6 socket code where the protocol control block's state flags are modified during a syscall, but are not...

Fedora 32 : xen (2020-df772b417b)

xenstore watch notifications lacking permission checks XSA-115, CVE-2020-29480 1908091 Xenstore: new domains inheriting existing node permissions XSA-322, CVE-2020-29481 1908095 Xenstore: wrong path length check XSA-323, CVE-2020-29482 1908096 Xenstore: guests can crash xenstored via watchs...

Fedora 33 : xen (2020-64859a826b)

xenstore watch notifications lacking permission checks XSA-115, CVE-2020-29480 1908091 Xenstore: new domains inheriting existing node permissions XSA-322, CVE-2020-29481 1908095 Xenstore: wrong path length check XSA-323, CVE-2020-29482 1908096 Xenstore: guests can crash xenstored via watchs...

SUSE-SU-2020:3914-1 Security update for xen

This update for xen fixes the following issues: - CVE-2020-29480: Fixed an issue which could have allowed leak of non-sensitive data to administrator guests bsc117949 XSA-115. - CVE-2020-29481: Fixed an issue which could have allowd to new domains to inherit existing node permissions bsc1179498...

SUSE SLED15 / SLES15 Security Update : xen (SUSE-SU-2020:3881-1)

This update for xen fixes the following issues : CVE-2020-29480: Fixed an issue which could have allowed leak of non-sensitive data to administrator guests bsc117949 XSA-115. CVE-2020-29481: Fixed an issue which could have allowd to new domains to inherit existing node permissions bsc1179498...

CVE-2020-29570

An issue was discovered in Xen through 4.14.x. Recording of the per-vCPU control block mapping maintained by Xen and that of pointers into the control block is reversed. The consumer assumes, seeing the former initialized, that the latter are also ready for use. Malicious or buggy guest kernels c...