Fedora 43 : xen (2026-78cd69d9ae)

The remote Fedora 43 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-78cd69d9ae advisory. oxenstored keeps quota related use counts across domain destruction XSA-483, CVE-2026-23556 Xenstored DoS via XSRESETWATCHES command XSA-484,...

Security update for xen

This update for xen fixes the following issues: CVE-2025-54505: floating point divider state sampling on AMD CPUs AMD-SN-7053 bsc1262428. CVE-2026-23557: Xenstored DoS via XSRESETWATCHES command bsc1262178. CVE-2026-23558: grant table v2 race in status page mapping bsc1262180. Special Instruction...

SUSE-SU-2026:1657-1 Security update for xen

This update for xen fixes the following issues: - CVE-2025-54505: floating point divider state sampling on AMD CPUs AMD-SN-7053 bsc1262428. - CVE-2026-23557: Xenstored DoS via XSRESETWATCHES command bsc1262178. - CVE-2026-23558: grant table v2 race in status page mapping bsc1262180...

Security update for xen

This update for xen fixes the following issues: CVE-2025-54505: floating point divider state sampling on AMD CPUs AMD-SN-7053 bsc1262428. CVE-2026-23557: Xenstored DoS via XSRESETWATCHES command bsc1262178. CVE-2026-23558: grant table v2 race in status page mapping bsc1262180. Special Instruction...

SUSE-SU-2026:1645-1 Security update for xen

This update for xen fixes the following issues: - CVE-2025-54505: floating point divider state sampling on AMD CPUs AMD-SN-7053 bsc1262428. - CVE-2026-23557: Xenstored DoS via XSRESETWATCHES command bsc1262178. - CVE-2026-23558: grant table v2 race in status page mapping bsc1262180...

grant table v2 race in status page mapping

ISSUE DESCRIPTION The adjustments made for XSA-379 as well as those subsequently becoming XSA-387 still left a race window, when a HVM or PVH guest does a grant table version change from v2 to v1 in parallel with mapping the status pages via XENMEMaddtophysmap. Some of the status pages may then b...

PT-2026-35872

Name of the Vulnerable Software and Affected Versions xen affected versions not specified Description Security issues were identified and addressed in the xen-4.21.1 04-1.1 package on the GA media of openSUSE Tumbleweed. Recommendations Update to the xen-4.21.1 04-1.1 package...

PT-2026-35873

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A buffer overflow exists in the drivers/xen/sys-hypervisor.c file. The build ID returned by the HYPERVISOR xen versionXENVER build id function is not a string and lacks NUL termination...

Unity Linux 20.1070e Security Update: kernel (UTSA-2026-001679)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-001679 advisory. Linux PV device frontends vulnerable to attacks by backends This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities...

Unity Linux 20.1070e Security Update: kernel (UTSA-2026-001684)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-001684 advisory. Linux PV device frontends vulnerable to attacks by backends This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities...

Unity Linux 20.1070e Security Update: kernel (UTSA-2026-001712)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-001712 advisory. Linux PV device frontends vulnerable to attacks by backends This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities...

Unity Linux 20.1070e Security Update: kernel (UTSA-2026-001758)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-001758 advisory. Linux disk/nic frontends data leaks This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE...

Unity Linux 20.1070e Security Update: kernel (UTSA-2026-001708)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-001708 advisory. Linux PV device frontends vulnerable to attacks by backends This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities...

CVE-2021-28703

grant table v2 status pages may remain accessible after de-allocation take two Guest get permitted access to certain Xen-owned pages of memory. The majority of such pages remain allocated / associated with a guest for its entire lifetime. Grant table v2 status pages, however, get de-allocated whe...

Siemens SCALANCE, Ruggedcom ROX Race Condition (CVE-2022-23040)

Linux PV device frontends vulnerable to attacks by backends This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE. Several Linux PV device frontends are using the grant table interfaces for removing access rights of the...

Siemens SCALANCE, Ruggedcom ROX Race Condition (CVE-2022-23039)

Linux PV device frontends vulnerable to attacks by backends This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE. Several Linux PV device frontends are using the grant table interfaces for removing access rights of the...

SUSE CVE-2023-54081

In the Linux kernel, the following vulnerability has been resolved: xen: speed up grant-table reclaim When a grant entry is still in use by the remote domain, Linux must put it on a deferred list. Normally, this list is very short, because the PV network and block protocols expect the backend to...

EUVD-2023-60364

In the Linux kernel, the following vulnerability has been resolved: xen: speed up grant-table reclaim When a grant entry is still in use by the remote domain, Linux must put it on a deferred list. Normally, this list is very short, because the PV network and block protocols expect the backend to...

CVE-2023-54081

In the Linux kernel, the following vulnerability has been resolved: xen: speed up grant-table reclaim When a grant entry is still in use by the remote domain, Linux must put it on a deferred list. Normally, this list is very short, because the PV network and block protocols expect the backend to...

CVE-2023-54081

In the Linux kernel, the following vulnerability has been resolved: xen: speed up grant-table reclaim When a grant entry is still in use by the remote domain, Linux must put it on a deferred list. Normally, this list is very short, because the PV network and block protocols expect the backend to...