Input validation error in Xen - CVE-2015-7311
Published: October 1, 2015 / Updated: August 9, 2020
Vulnerability identifier: #VU40645
CSH Severity: Medium
CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2015-7311
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote non-authenticated attacker to manipulate or delete data.
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.
Affected software
Xen
How to mitigate CVE-2015-7311
Install update from vendor's website.
External 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