Resource management error in Xen - CVE-2014-7188
Published: October 2, 2014 / Updated: July 28, 2020
Vulnerability identifier: #VU32490
CSH Severity: High
CVSS v4: 8.7 [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]
CVE-ID: CVE-2014-7188
CWE-ID: CWE-399
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vulnerability details
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.
Affected software
Xen
Gentoo Linux
Fedora
xen (Alpine package)
xen
Gentoo Linux
Fedora
xen (Alpine package)
xen
How to mitigate CVE-2014-7188
Install update from vendor's website.
xen (Alpine package) - update to 4.3.3-r0
xen - update to 4.4.1-6.fc21
xen - update to 4.4.1-6.fc21
External References
- 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