Unscored severity · published Oct 30, 2015
CVE-2015-7813
Xen 4.4.x, 4.5.x, and 4.6.x does not limit the number of printk console messages when reporting unimplemented hypercalls, which allows local guests to cause a denial of service…
–
CVSS
0.4%
EPSS
No
On KEV
Description
Xen 4.4.x, 4.5.x, and 4.6.x does not limit the number of printk console messages when reporting unimplemented hypercalls, which allows local guests to cause a denial of service via a sequence of (1) HYPERVISOR_physdev_op hypercalls, which are not properly handled in the do_physdev_op function in arch/arm/physdev.c, or (2) HYPERVISOR_hvm_op hypercalls, which are not properly handled in the do_hvm_op function in arch/arm/hvm.c.
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 33% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
XE
Xen · Xen
4.4.0; 4.4.0; 4.4.1; 4.5.0; 4.5.1; 4.6.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2015-7813
CVE.org
https://www.cve.org/CVERecord?id=CVE-2015-7813
lists.fedoraproject.org
http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171082.html
lists.fedoraproject.org
http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171185.html
lists.fedoraproject.org
http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171249.html
www.debian.org
http://www.debian.org/security/2015/dsa-3414
www.securitytracker.com
http://www.securitytracker.com/id/1034029
Vendor Advisory
http://xenbits.xen.org/xsa/advisory-146.html
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