Security update for xen (important)

openSUSE Security Update: Security update for xen Announcement ID: openSUSE-SU-2020:0599-1 Rating: important References: 1027519 1134506 1155200 1157490 1160932 1165206 1167007 1167152 1168140 1168142 1168143 1169392 Cross-References: CVE-2020-11739 CVE-2020-11740 CVE-2020-11741 CVE-2020-11742...

SUSE SLES12 Security Update : xen (SUSE-SU-2020:1139-1)

This update for xen to version 4.12.2 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...

SUSE-SU-2020:1139-1 Security update for xen

This update for xen to version 4.12.2 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...

SUSE-SU-2020:1124-1 Security update for xen

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

An issue was discovered in Xen through 4.13.x, allowing guest OS users to cause a denial of service or possibly gain privileges because of missing memory barriers in read-write unlock paths. The read-write unlock paths don't contain a memory barrier. On Arm, this means a processor is allowed to...

CVE-2020-11739

An issue was discovered in Xen through 4.13.x, allowing guest OS users to cause a denial of service or possibly gain privileges because of missing memory barriers in read-write unlock paths. The read-write unlock paths don't contain a memory barrier. On Arm, this means a processor is allowed to...

CVE-2020-11739

An issue was discovered in Xen through 4.13.x, allowing guest OS users to cause a denial of service or possibly gain privileges because of missing memory barriers in read-write unlock paths. The read-write unlock paths don't contain a memory barrier. On Arm, this means a processor is allowed to...

Design/Logic Flaw

An issue was discovered in Xen through 4.13.x, allowing guest OS users to cause a denial of service or possibly gain privileges because of missing memory barriers in read-write unlock paths. The read-write unlock paths don't contain a memory barrier. On Arm, this means a processor is allowed to...

CVE-2020-11739

An issue was discovered in Xen through 4.13.x, allowing guest OS users to cause a denial of service or possibly gain privileges because of missing memory barriers in read-write unlock paths. The read-write unlock paths don't contain a memory barrier. On Arm, this means a processor is allowed to...

UBUNTU-CVE-2020-11739

An issue was discovered in Xen through 4.13.x, allowing guest OS users to cause a denial of service or possibly gain privileges because of missing memory barriers in read-write unlock paths. The read-write unlock paths don't contain a memory barrier. On Arm, this means a processor is allowed to...

CVE-2020-11739

An issue was discovered in Xen through 4.13.x, allowing guest OS users to cause a denial of service or possibly gain privileges because of missing memory barriers in read-write unlock paths. The read-write unlock paths don't contain a memory barrier. On Arm, this means a processor is allowed to...

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...

CVE-2020-11739

An issue was discovered in Xen through 4.13.x, allowing guest OS users to cause a denial of service or possibly gain privileges because of missing memory barriers in read-write unlock paths. The read-write unlock paths don't contain a memory barrier. On Arm, this means a processor is allowed to...

Missing memory barriers in read-write unlock paths

ISSUE DESCRIPTION The read-write unlock paths don't contain a memory barrier. On Arm, this means a processor is allowed to re-order the memory access with the preceding ones. In other words, the unlock may be seen by another processor before all the memory accesses within the "critical" section. ...

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WebKit JSC JIT Use-After-Free

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kernel security and bug fix update

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Paper Spells Out Tech, Legal Options for Encryption Workarounds

FBI Director James Comey’s dogged attachment to the argument that strong encryption hinders criminal investigations by law enforcement is heading into its third year with little signs of abatement. That insistence comes despite three years of arguments to the contrary from security experts, who...

Scientific Linux Security Update : qemu-kvm on SL7.x x86_64 (20150727)

A heap buffer overflow flaw was found in the way QEMU's IDE subsystem handled I/O buffer access while processing certain ATAPI commands. A privileged guest user in a guest with the CDROM drive enabled could potentially use this flaw to execute arbitrary code on the host with the privileges of the...