-------------------------------------------------------------------------------- Fedora Update Notification FEDORA-2026-e39149a8a0 2026-02-15 01:28:07.972869+00:00 --------------------------------------------------------------------------------
Name : xen Product : Fedora 42 Version : 4.19.4 Release : 2.fc42 URL : http://xen.org/ Summary : Xen is a virtual machine monitor Description : This package contains the XenD daemon and xm command line tools, needed to manage virtual machines running under the Xen hypervisor
-------------------------------------------------------------------------------- Update Information:
x86: buffer overrun with shadow paging + tracing [XSA-477, CVE-2025-58150] x86: incomplete IBPB for vCPU isolation [XSA-479, CVE-2026-23553] -------------------------------------------------------------------------------- ChangeLog:
* Thu Jan 29 2026 Michael Young m.a.young@durham.ac.uk - 4.19.4-2 x86: buffer overrun with shadow paging + tracing [XSA-477, CVE-2025-58150] (#2434045) x86: incomplete IBPB for vCPU isolation [XSA-479, CVE-2026-23553] (#2434047) -------------------------------------------------------------------------------- References:
[ 1 ] Bug #2434045 - CVE-2025-58150 xen: x86: buffer overrun with shadow paging + tracing [fedora-42] https://bugzilla.redhat.com/show_bug.cgi?id=2434045 [ 2 ] Bug #2434047 - CVE-2026-23553 xen: x86: incomplete IBPB for vCPU isolation [fedora-42] https://bugzilla.redhat.com/show_bug.cgi?id=2434047 --------------------------------------------------------------------------------
This update can be installed with the "dnf" update program. Use su -c 'dnf upgrade --advisory FEDORA-2026-e39149a8a0' at the command line. For more information, refer to the dnf documentation available at http://dnf.readthedocs.io/en/latest/command_ref.html#upgrade-command-label
All packages are signed with the Fedora Project GPG key. More details on the GPG keys used by the Fedora Project can be found at https://fedoraproject.org/keys --------------------------------------------------------------------------------