Unscored severity · published Jun 21, 2012
CVE-2011-1751
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,…
–
CVSS
0.7%
EPSS
No
On KEV
Description
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."
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 54% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
QE
Qemu · Qemu
0.1.0; 0.1.1; 0.1.2; 0.1.3; 0.1.4; 0.1.5; +34 more · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2011-1751
CVE.org
https://www.cve.org/CVERecord?id=CVE-2011-1751
blog.nelhage.com
http://blog.nelhage.com/2011/08/breaking-out-of-kvm/
git.kernel.org
http://git.kernel.org/?p=virt/kvm/qemu-kvm.git%3Ba=commit%3Bh=505597e4476a6bc219d0ec1362b760d71cb4fdca
lists.nongnu.org
http://lists.nongnu.org/archive/html/qemu-devel/2011-05/msg01810.html
lists.opensuse.org
http://lists.opensuse.org/opensuse-updates/2011-05/msg00043.html
rhn.redhat.com
http://rhn.redhat.com/errata/RHSA-2011-0534.html
Vendor Advisory
http://secunia.com/advisories/44393
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