Fedora 26: 2018-7cd077ddd3 Critical Issues with Xen Loop and Interrupts

This package contains the XenD daemon and xm command line

tools, needed to manage virtual machines running under the

Xen hypervisor

x86: mishandling of debug exceptions [XSA-260, CVE-2018-8897] x86 vHPET

interrupt injection errors [XSA-261, CVE-2018-10982] (#1576089) qemu may drive

Xen into unbounded loop [XSA-262, CVE-2018-10981] (#1576680)

* Wed May 9 2018 Michael Young - 4.8.3-5

- x86: mishandling of debug exceptions [XSA-260, CVE-2018-8897]

(with extra patches so it applies cleanly)

- x86 vHPET interrupt injection errors [XSA-261, CVE-2018-10982] (#1576089)

- qemu may drive Xen into unbounded loop [XSA-262, CVE-2018-10981] (#1576680)

* Wed Apr 25 2018 Michael Young - 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 - 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 - 4.8.3-2

- also need CONFIG_PV_LINEAR_PT in xen.hypervisor.config to build

* Wed Jan 24 2018 Michael Young - 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 - 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 - 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 - 4.8.2-7

- incomplete adaption of new XSA-240 patch to Fedora state

* Thu Nov 16 2017 Michael Young - 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 - 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 - 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 - 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 - 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 - 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 - 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 - 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 - 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 - 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 - 4.8.1-3

- Rebuild for OCaml 4.04.1.

[ 1 ] Bug #1571880 - CVE-2018-10982 xsa261 xen: x86 vHPET interrupt injection errors (XSA-261)

https://bugzilla.redhat.com/show_bug.cgi?id=1571880

[ 2 ] Bug #1571881 - CVE-2018-10981 xsa262 xen: qemu may drive Xen into unbounded loop (XSA-262)

https://bugzilla.redhat.com/show_bug.cgi?id=1571881

su -c 'dnf upgrade --advisory FEDORA-2018-7cd077ddd3' 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/

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