Stay Secure with the Latest Linux Advisories

security advisorysecurity issuefedora

Fedora 35: 2022-420bf9fc1e Moderate: Xen DoS & Frontend Issues

frontends vulnerable to backends [XSA-376] (document change only) arm: guest_physmap_remove_page not removing the p2m mappings [XSA-393, CVE-2022-23033] (#2045044) A PV guest could DoS Xen while unmapping a grant [XSA-394, CVE-2022-23034] (#2045042) Insufficient cleanup of passed-through device IRQs [XSA-395, CVE-2022-23035] (#2045040). --------------------------------------------------------------------------------Fedora Update Notification FEDORA-2022-420bf9fc1e 2022-02-04 01:19:29.204559 --------------------------------------------------------------------------------Name : xen Product : Fedora 35 Version : 4.15.1 Release : 5.fc35 URL : https://xenproject.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: frontends vulnerable to backends [XSA-376] (document change only) arm: guest_physmap_remove_page not removing the p2m mappings [XSA-393, CVE-2022-23033] (#2045044) A PV guest could DoS Xen while unmapping a grant [XSA-394, CVE-2022-23034] (#2045042) Insufficient cleanup of passed-through device IRQs [XSA-395, CVE-2022-23035] (#2045040) --------------------------------------------------------------------------------ChangeLog: * Tue Jan 25 2022 Michael Young - 4.15.1-5 - frontends vulnerable to backends [XSA-376] (document change only) - arm: guest_physmap_remove_page not removing the p2m mappings [XSA-393, CVE-2022-23033] (#2045044) - A PV guest could DoS Xen while unmapping a grant [XSA-394, CVE-2022-23034] (#2045042) - Insufficient cleanup of passed-through device IRQs [XSA-395, CVE-2022-23035] (#2045040) --------------------------------------------------------------------------------References: [ 1 ] Bug #2045039 - CVE-2022-23035 xen: Insufficient cleanup of passed-through device IRQs(XSA-395) https://bugzilla.redhat.com/show_bug.cgi?id=2045039 [ 2 ] Bug #2045041 - CVE-2022-23034 xen: A PV guest could DoS Xen while unmapping a grant (XSA-394) https://bugzilla.redhat.com/show_bug.cgi?id=2045041 [ 3 ] Bug #2045043 - CVE-2022-23033 xen: arm: guest_physmap_remove_page not removing the p2m mappings (XSA-393) https://bugzilla.redhat.com/show_bug.cgi?id=2045043 --------------------------------------------------------------------------------This update can be installed with the "dnf" update program. Use su -c 'dnf upgrade --advisory FEDORA-2022-420bf9fc1e' at the command line. For more information, refer to the dnf documentation available at https://dnf.readthedocs.io/en/latest/command_ref.html 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/security/ --------------------------------------------------------------------------------_______________________________________________ package-announce mailing list -- This email address is being protected from spambots. You need JavaScript enabled to view it. To unsubscribe send an email to This email address is being protected from spambots. You need JavaScript enabled to view it. Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/This email address is being protected from spambots. You need JavaScript enabled to view it./ Do not reply to spam on the list, report it: https://pagure.io/fedora-infrastructure . The recent update addresses frontend vulnerabilities linked to backend systems while enhancing security measures for Xen in Fedora 35.. Fedora Update, Xen Security, Backends Issue, DoS Prevention. . LinuxSecurity.com Team

Feb 03, 2022 Fedora