Resource management error in Xen - CVE-2014-7188
Published: October 2, 2014 / Updated: July 28, 2020
Vulnerability identifier: #VU32490
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-2014-7188
CWE-ID: CWE-399
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 hvm_msr_read_intercept function in arch/x86/hvm/hvm.c in Xen 4.1 through 4.4.x uses an improper MSR range for x2APIC emulation, which allows local HVM guests to cause a denial of service (host crash) or read data from the hypervisor or other guests via unspecified vectors.
How to mitigate CVE-2014-7188
Install update from vendor's website.
Sources
- http://lists.fedoraproject.org/pipermail/package-announce/2014-October/140199.html
- http://lists.fedoraproject.org/pipermail/package-announce/2014-October/140418.html
- http://lists.fedoraproject.org/pipermail/package-announce/2014-October/140483.html
- http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00002.html
- http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00003.html
- http://secunia.com/advisories/61664
- http://secunia.com/advisories/61858
- http://secunia.com/advisories/61890
- http://security.gentoo.org/glsa/glsa-201412-42.xml
- http://support.citrix.com/article/CTX200218
- http://support.citrix.com/article/CTX201794
- http://www.c7zero.info/stuff/csw2017_ExploringYourSystemDeeper_updated.pdf
- http://www.debian.org/security/2014/dsa-3041
- http://www.securityfocus.com/bid/70198
- http://www.securitytracker.com/id/1030936
- http://xenbits.xen.org/xsa/advisory-108.html
- https://exchange.xforce.ibmcloud.com/vulnerabilities/96785