Fedora 31: FEDORA-2020-295ed0b1e0 Critical: Xen Memory Barriers Issues

This package contains the XenD daemon and xm command line

tools, needed to manage virtual machines running under the

Xen hypervisor

multiple xenoprof issues [XSA-313, CVE-2020-11740, CVE-2020-11741] (#1823912,

#1823914) Missing memory barriers in read-write unlock paths [XSA-314,

CVE-2020-11739] (#1823784) Bad error path in GNTTABOP_map_grant [XSA-316,

CVE-2020-11743] (#1823926) Bad continuation handling in GNTTABOP_copy [XSA-318,

CVE-2020-11742] (#1823943)

* Wed Apr 15 2020 Michael Young - 4.12.2-3

- multiple xenoprof issues [XSA-313, CVE-2020-11740, CVE-2020-11741]

(#1823912, #1823914)

- Missing memory barriers in read-write unlock paths [XSA-314,

CVE-2020-11739] (#1823784)

- Bad error path in GNTTABOP_map_grant [XSA-316, CVE-2020-11743] (#1823926)

- Bad continuation handling in GNTTABOP_copy [XSA-318, CVE-2020-11742]

(#1823943)

[ 1 ] Bug #1823783 - CVE-2020-11739 xen: missing memory barriers in read-write unlock paths (XSA-314)

https://bugzilla.redhat.com/show_bug.cgi?id=1823783

[ 2 ] Bug #1823911 - CVE-2020-11740 xen: xenoprof issue allows guest OS users without active profiling to obtain sensitive information about other guests (XSA-313)

https://bugzilla.redhat.com/show_bug.cgi?id=1823911

[ 3 ] Bug #1823913 - CVE-2020-11741 xen: xenoprof issue allows guest OS users with active profiling to obtain sensitive information about other guests (XSA-313)

https://bugzilla.redhat.com/show_bug.cgi?id=1823913

[ 4 ] Bug #1823925 - CVE-2020-11743 xen: bad error path in GNTTABOP_map_grant (XSA-316)

https://bugzilla.redhat.com/show_bug.cgi?id=1823925

[ 5 ] Bug #1823942 - CVE-2020-11742 xen: bad continuation handling in GNTTABOP_copy (XSA-318)

https://bugzilla.redhat.com/show_bug.cgi?id=1823942

su -c 'dnf upgrade --advisory FEDORA-2020-295ed0b1e0' at the command

line. For more information, refer to the dnf documentation available at

https://dnf.readthedocs.io/en/latest/command_ref.html

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