------------------------------------------------------------------------------- - Fedora Update Notification FEDORA-2018-eb69078020 2018-05-12 18:26:37.213416 ------------------------------------------------------------------------------- -
Name : xen Product : Fedora 26 Version : 4.8.3 Release : 4.fc26 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:
Information leak via crafted user-supplied CDROM [XSA-258] (#1571867) x86: PV guest may crash Xen with XPTI [XSA-259] (#1571878) ------------------------------------------------------------------------------- - ChangeLog:
* Wed Apr 25 2018 Michael Young <m.a.young@durham.ac.uk> - 4.8.3-4 - Information leak via crafted user-supplied CDROM [XSA-258] (#1571867) - x86: PV guest may crash Xen with XPTI [XSA-259] (#1571878) * Tue Feb 27 2018 Michael Young <m.a.young@durham.ac.uk> - 4.8.3-3 - update Xen page-table isolation (XPTI) mitigation and add Branch Target Injection (BTI) mitigation for XSA-254 - DoS via non-preemptable L3/L4 pagetable freeing [XSA-252, CVE-2018-7540] (#1549568) - grant table v2 -> v1 transition may crash Xen [XSA-255, CVE-2018-7541] (#1549570) - x86 PVH guest without LAPIC may DoS the host [XSA-256, CVE-2018-7542] (#1549572) * Thu Jan 25 2018 Michael Young <m.a.young@durham.ac.uk> - 4.8.3-2 - also need CONFIG_PV_LINEAR_PT in xen.hypervisor.config to build * Wed Jan 24 2018 Michael Young <m.a.young@durham.ac.uk> - 4.8.3-1 - update to xen-4.8.3 (includes Xen page-table isolation (XPTI) mitigation for XSA-254) adjust xen.use.fedora.ipxe.patch, xen.gcc7.fix.patch and qemu.git-fec5e8c92becad223df9d972770522f64aafdb72.patch remove upstream patches * Tue Dec 12 2017 Michael Young <m.a.young@durham.ac.uk> - 4.8.2-9 - another patch related to the [XSA-240, CVE-2017-15595] issue - xen: various flaws (#1525018) x86 PV guests may gain access to internally used page [XSA-248] broken x86 shadow mode refcount overflow check [XSA-249] improper x86 shadow mode refcount error handling [XSA-250] improper bug check in x86 log-dirty handling [XSA-251] * Tue Nov 28 2017 Michael Young <m.a.young@durham.ac.uk> - 4.8.2-8 - xen: various flaws (#1518214) x86: infinite loop due to missing PoD error checking [XSA-246, CVE-2017-17044] Missing p2m error checking in PoD code [XSA-247, CVE-2017-17045] * Sun Nov 19 2017 Michael Young <m.a.young@durham.ac.uk> - 4.8.2-7 - incomplete adaption of new XSA-240 patch to Fedora state * Thu Nov 16 2017 Michael Young <m.a.young@durham.ac.uk> - 4.8.2-6 - fix an issue in patch for [XSA-240, CVE-2017-15595] that might be a security issue - fix for [XSA-243, CVE-2017-15592] could cause hypervisor crash (DOS) * Thu Oct 26 2017 Michael Young <m.a.young@durham.ac.uk> - 4.8.2-5 - pin count / page reference race in grant table code [XSA-236, CVE-2017-15597] (#1506693) * Thu Oct 12 2017 Michael Young <m.a.young@durham.ac.uk> - 4.8.2-4 - xen: various flaws (#1501391) multiple MSI mapping issues on x86 [XSA-237, CVE-2017-15590] DMOP map/unmap missing argument checks [XSA-238, CVE-2017-15591] hypervisor stack leak in x86 I/O intercept code [XSA-239, CVE-2017-15589] Unlimited recursion in linear pagetable de-typing [XSA-240, CVE-2017-15595] Stale TLB entry due to page type release race [XSA-241, CVE-2017-15588] page type reference leak on x86 [XSA-242, CVE-2017-15593] x86: Incorrect handling of self-linear shadow mappings with translated guests [XSA-243, CVE-2017-15592] x86: Incorrect handling of IST settings during CPU hotplug [XSA-244, CVE-2017-15594] * Tue Oct 3 2017 Michael Young <m.a.young@durham.ac.uk> - 4.8.2-3 - ARM: Some memory not scrubbed at boot [XSA-245, CVE-2017-17046] (#1499843) - Qemu: vga: reachable assert failure during during display update [CVE-2017-13673] (#1486591) - Qemu: vga: OOB read access during display update [CVE-2017-13672] (#1486562) * Tue Sep 12 2017 Michael Young <m.a.young@durham.ac.uk> - 4.8.2-2 - xen: various flaws (#1490884) Missing NUMA node parameter verification [XSA-231, CVE-2017-14316] Missing check for grant table [XSA-232, CVE-2017-14318] cxenstored: Race in domain cleanup [XSA-233, CVE-2017-14317] insufficient grant unmapping checks for x86 PV guests [XSA-234, CVE-2017-14319] * Wed Sep 6 2017 Michael Young <m.a.young@durham.ac.uk> - 4.8.2-1 - update to xen-4.8.2 adjust xen.use.fedora.ipxe.patch and xen.gcc7.fix.patch remove upstream patches * Wed Aug 30 2017 Michael Young <m.a.young@durham.ac.uk> - 4.8.1-8 - Qemu: usb: ohci: infinite loop due to incorrect return value [CVE-2017-9330] (#1457698) - Qemu: nbd: segmentation fault due to client non-negotiation [CVE-2017-9524] (#1460173) - Qemu: qemu-nbd: server breaks with SIGPIPE upon client abort [CVE-2017-10664] (#1466466) - Qemu: exec: oob access during dma operation [CVE-2017-11334] (#1471640) - revised full fix for XSA-226 (regressed 32-bit Dom0 or backend domains) * Wed Aug 23 2017 Michael Young <m.a.young@durham.ac.uk> - 4.8.1-7 - full fix for XSA-226, replacing workaround - drop conflict of xendomain and libvirtd as can cause problems (#1398590) - add-to-physmap error paths fail to release lock on ARM [XSA-235] (#1484476) - Qemu: audio: host memory leakage via capture buffer [CVE-2017-8309] (#1446521) - Qemu: input: host memory leakage via keyboard events [CVE-2017-8379] (#1446561) * Tue Aug 15 2017 Michael Young <m.a.young@durham.ac.uk> - 4.8.1-6 - Qemu: serial: host memory leakage 16550A UART emulation [CVE-2017-5579] (#1416162) - Qemu: display: cirrus: OOB read access issue [CVE-2017-7718] (#1443444) - xen: various flaws (#1481765) multiple problems with transitive grants [XSA-226, CVE-2017-12135] x86: PV privilege escalation via map_grant_ref [XSA-227, CVE-2017-12137] grant_table: Race conditions with maptrack free list handling [XSA-228, CVE-2017-12136] grant_table: possibly premature clearing of GTF_writing / GTF_reading [XSA-230, CVE-2017-12855] * Tue Jun 20 2017 Michael Young <m.a.young@durham.ac.uk> - 4.8.1-4 - xen: various flaws (#1463247) blkif responses leak backend stack data [XSA-216] page transfer may allow PV guest to elevate privilege [XSA-217] Races in the grant table unmap code [XSA-218] x86: insufficient reference counts during shadow emulation [XSA-219] x86: PKRU and BND* leakage between vCPU-s [XSA-220] NULL pointer deref in event channel poll [XSA-221] (#1463231) stale P2M mappings due to insufficient error checking [XSA-222] ARM guest disabling interrupt may crash Xen [XSA-223] grant table operations mishandle reference counts [XSA-224] arm: vgic: Out-of-bound access when sending SGIs [XSA-225] * Mon May 15 2017 Richard W.M. Jones <rjones@redhat.com> - 4.8.1-3 - Rebuild for OCaml 4.04.1. ------------------------------------------------------------------------------- - References:
[ 1 ] Bug #1566253 - CVE-2018-10472 xsa258 xen: Information leak via crafted user-supplied CDROM https://bugzilla.redhat.com/show_bug.cgi?id=1566253 [ 2 ] Bug #1566220 - CVE-2018-10471 xsa259 xen: x86 PV guest may crash Xen with XPTI https://bugzilla.redhat.com/show_bug.cgi?id=1566220 ------------------------------------------------------------------------------- -
This update can be installed with the "dnf" update program. Use su -c 'dnf upgrade --advisory FEDORA-2018-eb69078020' 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
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