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Red Hat Security Advisory 2012-0743-01
Posted Jun 18, 2012
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2012-0743-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. A local, unprivileged user could use an integer overflow flaw in drm_mode_dirtyfb_ioctl() to cause a denial of service or escalate their privileges. A buffer overflow flaw was found in the macvtap device driver, used for creating a bridged network between the guest and the host in KVM environments. A privileged guest user in a KVM guest could use this flaw to crash the host. Note: This issue only affected hosts that have the vhost_net module loaded with the experimental_zcopytx module option enabled, and that also have macvtap configured for at least one guest.

tags | advisory, denial of service, overflow, kernel, local
systems | linux, redhat
advisories | CVE-2012-0044, CVE-2012-1179, CVE-2012-2119, CVE-2012-2121, CVE-2012-2123, CVE-2012-2136, CVE-2012-2137, CVE-2012-2372, CVE-2012-2373
SHA-256 | 2480f3d6a1b6962283dd9e04ff5f1211daab9bed3388bb442c0b82afde24b21d

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