7.4
CVE-2011-1751
- EPSS 0.75%
- Veröffentlicht 21.06.2012 15:55:09
- Zuletzt bearbeitet 16.06.2026 23:29:57
- Quelle secalert@redhat.com
- CVE-Watchlists
- Unerledigt
The pciej_write function in hw/acpi_piix4.c in the PIIX4 Power Management emulation in qemu-kvm does not check if a device is hotpluggable before unplugging the PCI-ISA bridge, which allows privileged guest users to cause a denial of service (guest crash) and possibly execute arbitrary code by sending a crafted value to the 0xae08 (PCI_EJ_BASE) I/O port, which leads to a use-after-free related to "active qemu timers."
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
| Typ | Quelle | Score | Percentile |
|---|---|---|---|
| EPSS | FIRST.org | 0.75% | 0.501 |
| Quelle | Base Score | Exploit Score | Impact Score | Vector String |
|---|---|---|---|---|
| nvd@nist.gov | 7.4 | 4.4 | 10 |
AV:A/AC:M/Au:S/C:C/I:C/A:C
|
CWE-20 Improper Input Validation
The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.
http://secunia.com/advisories/44393
http://lists.opensuse.org/opensuse-updates/2011-05/msg00043.html
http://rhn.redhat.com/errata/RHSA-2011-0534.html
http://secunia.com/advisories/44658
http://secunia.com/advisories/44660
http://secunia.com/advisories/44900
https://hermes.opensuse.org/messages/8572547
https://www.ubuntu.com/usn/USN-1145-1/
http://blog.nelhage.com/2011/08/breaking-out-of-kvm/
http://git.kernel.org/?p=virt/kvm/qemu-kvm.git%3Ba=commit%3Bh=505597e4476a6bc219d0ec1362b760d71cb4fdca
http://lists.nongnu.org/archive/html/qemu-devel/2011-05/msg01810.html
http://secunia.com/advisories/44458
http://secunia.com/advisories/44648
http://www.openwall.com/lists/oss-security/2011/05/19/2
http://www.osvdb.org/73395
http://www.securityfocus.com/bid/47927
https://bugzilla.redhat.com/show_bug.cgi?id=699773
https://github.com/nelhage/virtunoid