SUSE SLES12 Security Update : xen (SUSE-SU-2020:3050-1)

This update for xen fixes the following issues : bsc1177409 - VUL-0: CVE-2020-27673: xen: x86 PV guest INVLPG-like flushes may leave stale TLB entries XSA-286 bsc1177412 - VUL-0: CVE-2020-27672: xen: Race condition in Xen mapping code XSA-345 bsc1177413 - VUL-0: CVE-2020-27671: xen: undue deferra...

SUSE SLES12 Security Update : xen (SUSE-SU-2020:3612-1)

This update for xen fixes the following issues : bsc1178963 - VUL-0: xen: stack corruption from XSA-346 change XSA-355 Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format...

SUSE SLED15 / SLES15 Security Update : xen (SUSE-SU-2020:3049-1)

This update for xen fixes the following issues : bsc1177409 - VUL-0: CVE-2020-27673: xen: x86 PV guest INVLPG-like flushes may leave stale TLB entries XSA-286 bsc1177412 - VUL-0: CVE-2020-27672: xen: Race condition in Xen mapping code XSA-345 bsc1177413 - VUL-0: CVE-2020-27671: xen: undue deferra...

SUSE SLED15 / SLES15 Security Update : xen (SUSE-SU-2020:3412-1)

This update for xen fixes the following issues : Security issue fixed : CVE-2020-28368: Fixed the Intel RAPL sidechannel attack, aka PLATYPUS attack, aka XSA-351 bsc1178591. Non-security issues fixed : Updated to Xen 4.13.2 bug fix release bsc1027519. Fixed a panic during MSI cleanup on AMD...

SUSE SLES12 Security Update : xen (SUSE-SU-2020:3414-1)

This update for xen fixes the following issues : Security issue fixed : CVE-2020-28368: Fixed the Intel RAPL sidechannel attack, aka PLATYPUS attack, aka XSA-351 bsc1178591. Non-security issues fixed : Updated to Xen 4.12.4 bug fix release bsc1027519. Fixed a panic during MSI cleanup on AMD...

SUSE SLES12 Security Update : xen (SUSE-SU-2020:3631-1)

This update for xen fixes the following issues : bsc1178963 - stack corruption from XSA-346 change XSA-355 bsc1177409 - CVE-2020-27674: x86 PV guest INVLPG-like flushes may leave stale TLB entries XSA-286 bsc1177412 - CVE-2020-27672: Race condition in Xen mapping code XSA-345 bsc1177413 -...

OPENSUSE-SU-2020:2162-1 Security update for xen

This update for xen fixes the following issues: - bsc1178963 - VUL-0: xen: stack corruption from XSA-346 change XSA-355 This update was imported from the SUSE:SLE-15-SP2:Update update project...

SUSE-SU-2020:3612-1 Security update for xen

This update for xen fixes the following issues: - bsc1178963 - VUL-0: xen: stack corruption from XSA-346 change XSA-355...

SUSE-SU-2020:3611-1 Security update for xen

This update for xen fixes the following issues: - bsc1178963 - VUL-0: xen: stack corruption from XSA-346 change XSA-355...

Fedora 33 : xen (2020-d71fa5f0b9)

stack corruption from XSA-346 change XSA-355 ---- Information leak via power sidechannel XSA-351 Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website. Tenable has attempted to automatically clean and format it as much as...

Security update for xen (important)

openSUSE Security Update: Security update for xen Announcement ID: openSUSE-SU-2020:2030-1 Rating: important References: 1027519 1177950 1178591 Cross-References: CVE-2020-28368 Affected Products: openSUSE Leap 15.1 An update that solves one vulnerability and has two fixes is now available...

Security update for xen (important)

openSUSE Security Update: Security update for xen Announcement ID: openSUSE-SU-2020:2017-1 Rating: important References: 1027519 1177950 1178591 Cross-References: CVE-2020-28368 Affected Products: openSUSE Leap 15.2 An update that solves one vulnerability and has two fixes is now available...

stack corruption from XSA-346 change

ISSUE DESCRIPTION One of the two changes for XSA-346 introduced an on-stack array. The check for guarding against overrunning this array was off by one, allowing for corruption of the first stack slot immediately following this array. IMPACT A malicious or buggy HVM or PVH guest can cause Xen to...

Fedora 31 : xen (2020-6dd36a716c)

revised patch for XSA-286 mitigating performance impact ---- x86 PV guest INVLPG-like flushes may leave stale TLB entries XSA-286, CVE-2020-27674 1891092 ---- x86: Race condition in Xen mapping code XSA-345 undue deferral of IOMMU TLB flushes XSA-346 unsafe AMD IOMMU page table updates XSA-347 No...

Fedora 33 : xen (2020-ec84c1565b)

revised patch for XSA-286 mitigating performance impact ---- x86 PV guest INVLPG-like flushes may leave stale TLB entries XSA-286, CVE-2020-27674 1891092 simplify grub scripts patches from Thierry Vignaud some fixes for gcc 11 Note that Tenable Network Security has extracted the preceding...

Fedora 33 : xen (2020-97775b4234)

x86: Race condition in Xen mapping code XSA-345 undue deferral of IOMMU TLB flushes XSA-346 unsafe AMD IOMMU page table updates XSA-347 Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website. Tenable has attempted to...

CVE-2020-27671

A flaw was found to occur in the Xen optimization to coalesce per-page IOMMU TLB flushes. This flaw allows malicious x86 HVM and PVH guests to cause host data corruption and data leaks, resulting in a denial of service DoS or potential privilege escalation. The highest threat from this...

Xen x86 PV guest kernels DoS (XSA-339)

A denial of service DoS vulnerability exists in Xen servers when using x86 PV guest kernels due to a mishandling of SYSENTER state sanitization activities. An authenticated, local attacker can exploit this issue, via the SYSENTER instruction in 64bit mode, to cause a VM Denial of Service. Note th...

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...

Security update for xen (important)

openSUSE Security Update: Security update for xen Announcement ID: openSUSE-SU-2020:1608-1 Rating: important References: 1027519 1176339 1176341 1176343 1176344 1176345 1176346 1176347 1176348 1176349 1176350 Cross-References: CVE-2020-25595 CVE-2020-25596 CVE-2020-25597 CVE-2020-25598...