SUSE: Security Advisory (SUSE-SU-2020:1139-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2021 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

SUSE: Security Advisory (SUSE-SU-2020:1138-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2021 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

SUSE: Security Advisory (SUSE-SU-2020:1630-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2021 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

SUSE: Security Advisory (SUSE-SU-2020:2234-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2021 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

[SECURITY] [DSA 4723-1] xen security update

------------------------------------------------------------------------- Debian Security Advisory DSA-4723-1 [email protected] https://www.debian.org/security/ Moritz Muehlenhoff July 12, 2020 https://www.debian.org/security/faq -...

SUSE SLES12 Security Update : xen (SUSE-SU-2020:1630-1)

This update for xen fixes the following issues : CVE-2020-0543: Fixed a side channel attack against special registers which could have resulted in leaking of read values to cores other than the one which called it. This attack is known as Special Register Buffer Data Sampling SRBDS or 'CrossTalk'...

Fedora: Security Advisory for xen (FEDORA-2020-cbc3149753)

The remote host is missing an update for the Copyright C 2020 Greenbone Networks GmbH Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-or-later This program is free software; you can...

GLSA-202005-08 : Xen: Multiple vulnerabilities

The remote host is affected by the vulnerability described in GLSA-202005-08 Xen: Multiple vulnerabilities Multiple vulnerabilities have been discovered in Xen. Please review the CVE identifiers referenced below for details. Impact : Please review the referenced CVE identifiers for details...

Fedora 30 : xen (2020-cbc3149753)

update to 4.11.4 ---- multiple xenoprof issues XSA-313, CVE-2020-11740, CVE-2020-11741 1823912, 1823914 Missing memory barriers in read-write unlock paths XSA-314, CVE-2020-11739 1823784 Bad error path in GNTTABOPmapgrant XSA-316, CVE-2020-11743 1823926 Bad continuation handling in GNTTABOPcopy...

openSUSE: Security Advisory for xen (openSUSE-SU-2020:0599-1)

The remote host is missing an update for the Copyright C 2020 Greenbone Networks GmbH Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-or-later This program is free software; you can...

Fedora: Security Advisory for xen (FEDORA-2020-440457afe4)

The remote host is missing an update for the Copyright C 2020 Greenbone Networks GmbH Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-or-later This program is free software; you can...

SUSE SLES12 Security Update : xen (SUSE-SU-2020:1138-1)

This update for xen fixes the following issues : Security issues fixed : CVE-2020-11742: Bad continuation handling in GNTTABOPcopy bsc1169392. CVE-2020-11740, CVE-2020-11741: xen: XSA-313 multiple xenoprof issues bsc1168140. CVE-2020-11739: Missing memory barriers in read-write unlock paths...

SUSE SLED15 / SLES15 Security Update : xen (SUSE-SU-2020:1124-1)

This update for xen fixes the following issues : Security issues fixed : CVE-2020-11742: Bad continuation handling in GNTTABOPcopy bsc1169392. CVE-2020-11740, CVE-2020-11741: xen: XSA-313 multiple xenoprof issues bsc1168140. CVE-2020-11739: Missing memory barriers in read-write unlock paths...

CVE-2020-11739

CVE-2020-11739 affects the Xen hypervisor up to 4.13.x. The issue arises from missing memory barriers in the read-write unlock paths, enabling memory reordering on ARM that can break critical-section safety. A malicious guest could cause a race in hypercall paths (e.g., grant-table operations), p...