Vulnerability CVE-2015-7311
Published: 2015-10-01

Description:
libxl in Xen 4.1.x through 4.6.x does not properly handle the readonly flag on disks when using the qemu-xen device model, which allows local guest users to write to a read-only disk image.

Type:

CWE-17

 (Code)

CVSS2 => (AV:L/AC:L/Au:N/C:N/I:P/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
3.6/10
4.9/10
3.9/10
Exploit range
Attack complexity
Authentication
Local
Low
No required
Confidentiality impact
Integrity impact
Availability impact
None
Partial
Partial
Affected software
XEN -> XEN 

 References:
http://lists.fedoraproject.org/pipermail/package-announce/2015-September/167077.html
http://lists.fedoraproject.org/pipermail/package-announce/2015-September/167792.html
http://lists.fedoraproject.org/pipermail/package-announce/2015-September/167820.html
http://lists.opensuse.org/opensuse-updates/2015-12/msg00053.html
http://www.debian.org/security/2015/dsa-3414
http://www.securityfocus.com/bid/76823
http://www.securitytracker.com/id/1033633
http://xenbits.xen.org/xsa/advisory-142.html
https://bugzilla.redhat.com/show_bug.cgi?id=1257893
https://security.gentoo.org/glsa/201604-03
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