Unscored severity · published Apr 1, 2015
CVE-2015-2756
QEMU, as used in Xen 3.3.x through 4.5.x, does not properly restrict access to PCI command registers, which might allow local HVM guest users to cause a denial of service…
–
CVSS
0.4%
EPSS
No
On KEV
Description
QEMU, as used in Xen 3.3.x through 4.5.x, does not properly restrict access to PCI command registers, which might allow local HVM guest users to cause a denial of service (non-maskable interrupt and host crash) by disabling the (1) memory or (2) I/O decoding for a PCI Express device and then accessing the device, which triggers an Unsupported Request (UR) response.
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 39% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DL
Debian Linux · Debian
7.0; 8.0 · source: NVD
FE
Fedora · Fedoraproject
20; 21 · source: NVD
UL
Ubuntu Linux · Canonical
12.04; 14.04; 14.10; 15.04 · source: NVD
XE
Xen · Xen
4.3.0; 4.3.1; 4.3.2; 4.4.0; 4.4.1; 4.5.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2015-2756
CVE.org
https://www.cve.org/CVERecord?id=CVE-2015-2756
lists.fedoraproject.org
http://lists.fedoraproject.org/pipermail/package-announce/2015-April/154574.html
lists.fedoraproject.org
http://lists.fedoraproject.org/pipermail/package-announce/2015-April/154579.html
lists.fedoraproject.org
http://lists.fedoraproject.org/pipermail/package-announce/2015-April/155198.html
lists.nongnu.org
http://lists.nongnu.org/archive/html/qemu-devel/2015-03/msg06179.html
lists.opensuse.org
http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00014.html
support.citrix.com
http://support.citrix.com/article/CTX201145
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