#VU40724 Resource management error in Xen - CVE-2015-4105
Vulnerability identifier: #VU40724
Vulnerability risk: Medium
CVSSv4.0: 4.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]
CVE-ID:
CWE-ID:
CWE-399
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
Xen
Server applications /
Virtualization software
Vendor: Xen Project
Description
The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.
Xen 3.3.x through 4.5.x enables logging for PCI MSI-X pass-through error messages, which allows local x86 HVM guests to cause a denial of service (host disk consumption) via certain invalid operations.
Mitigation
Install update from vendor's website.
Vulnerable software versions
Xen: 3.3.0 - 4.5.0
External links
https://lists.fedoraproject.org/pipermail/package-announce/2015-June/160154.html
https://lists.fedoraproject.org/pipermail/package-announce/2015-June/160171.html
https://lists.fedoraproject.org/pipermail/package-announce/2015-June/160685.html
https://lists.opensuse.org/opensuse-security-announce/2015-06/msg00004.html
https://lists.opensuse.org/opensuse-security-announce/2015-06/msg00007.html
https://lists.opensuse.org/opensuse-security-announce/2015-06/msg00029.html
https://lists.opensuse.org/opensuse-security-announce/2015-06/msg00030.html
https://support.citrix.com/article/CTX201145
https://www.debian.org/security/2015/dsa-3284
https://www.debian.org/security/2015/dsa-3286
https://www.securityfocus.com/bid/74948
https://www.securitytracker.com/id/1032465
https://www.ubuntu.com/usn/USN-2630-1
https://xenbits.xen.org/xsa/advisory-130.html
https://security.gentoo.org/glsa/201604-03
https://support.citrix.com/article/CTX206006
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
