Date: Tue, 18 Mar 2014 11:39:08 +0100 From: Petr Matousek <pmatouse@...hat.com> To: oss-security@...ts.openwall.com Cc: libvirt-security@...hat.com, Eric Blake <eblake@...hat.com>, Daniel Berrange <berrange@...hat.com> Subject: CVE request -- libvirt: unprivileged user can crash libvirtd during spice migration (this issue was reported to libvirt-security mailing list in the year 2k13 so might need 2k13 CVE) Description of the problem: Domblkstat is possible even with read-only connection, so whenever migration with spice is done and domblkstat gets called at the same time as qemuMonitorGetSpiceMigrationStatus(), there is certain possibility that the daemon crashes (null pointer dereference). An unprivileged user able to issue commands to running libvirtd could use this flaw to crash libvirtd and prevent more privileged clients from working correctly. Upstream fix: http://libvirt.org/git/?p=libvirt.git;a=commit;h=484cc321 Thanks, -- Petr Matousek / Red Hat Security Response Team PGP: 0xC44977CA 8107 AF16 A416 F9AF 18F3 D874 3E78 6F42 C449 77CA
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