Permissions, Privileges, and Access Controls in Xen - CVE-2014-1666
Published: January 26, 2014 / Updated: August 10, 2020
Vulnerability identifier: #VU42105
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2014-1666
CWE-ID: CWE-264
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vendor: Xen Project
Affected software:
Xen
Xen
Detailed vulnerability description
The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.
The do_physdev_op function in Xen 4.1.5, 4.1.6.1, 4.2.2 through 4.2.3, and 4.3.x does not properly restrict access to the (1) PHYSDEVOP_prepare_msix and (2) PHYSDEVOP_release_msix operations, which allows local PV guests to cause a denial of service (host or guest malfunction) or possibly gain privileges via unspecified vectors.
How to mitigate CVE-2014-1666
Install update from vendor's website.
Sources
- http://lists.fedoraproject.org/pipermail/package-announce/2014-February/127580.html
- http://lists.fedoraproject.org/pipermail/package-announce/2014-February/127607.html
- http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00010.html
- http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00011.html
- http://osvdb.org/102536
- http://secunia.com/advisories/56650
- http://security.gentoo.org/glsa/glsa-201407-03.xml
- http://support.citrix.com/article/CTX200288
- http://www.openwall.com/lists/oss-security/2014/01/24/6
- http://www.securityfocus.com/bid/65125
- http://www.securitytracker.com/id/1029684
- http://xenbits.xen.org/xsa/advisory-87.html
- http://xenbits.xen.org/xsa/xsa87-unstable-4.3.patch
- https://exchange.xforce.ibmcloud.com/vulnerabilities/90675