Bugzilla – Bug 864653
VUL-0: CVE-2013-4151: qemu: virtio: out-of-bounds buffer write on invalid state load
Last modified: 2016-04-27 18:53:35 UTC
CVE-2013-4151 Michael S. Tsirkin writes: QEMU 1.0 out-of-bounds buffer write in virtio_load@virtio/virtio.c So we have this code since way back when: num = qemu_get_be32(f); for (i = 0; i < num; i++) { vdev->vq[i].vring.num = qemu_get_be32(f); array of vqs has size VIRTIO_PCI_QUEUE_MAX, so on invalid input this will write beyond end of buffer. An user able to alter the savevm data (either on the disk or over the wire during migration) could use this flaw to to corrupt QEMU process memory on the (destination) host, which could potentially result in arbitrary code execution on the host with the privileges of the QEMU process. References: http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2013-4151 https://bugzilla.redhat.com/show_bug.cgi?id=1066342
bugbot adjusting priority
This is an autogenerated message for OBS integration: This bug (864653) was mentioned in https://build.opensuse.org/request/show/235281 Factory / qemu
Update released for: kvm, kvm-debuginfo, kvm-debugsource Products: SLE-DESKTOP 11-SP3 (i386, x86_64) SLE-SERVER 11-SP3 (i386, s390x, x86_64)
SUSE-SU-2014:0816-1: An update that solves two vulnerabilities and has 20 fixes is now available. Category: security (moderate) Bug References: 864391,864649,864650,864653,864655,864665,864671,864673,864678,864682,864769,864796,864801,864802,864804,864805,864811,864812,864814,873235,874749,874788 CVE References: CVE-2014-0150,CVE-2014-2894 Sources used: SUSE Linux Enterprise Server 11 SP3 (src): kvm-1.4.2-0.15.2 SUSE Linux Enterprise Desktop 11 SP3 (src): kvm-1.4.2-0.15.2
fixed everyhwere