Resource management error in Linux kernel

1) Resource management error

EUVDB-ID: #VU41139

Risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2014-3690

CWE-ID: CWE-399 - Resource Management Errors

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.

arch/x86/kvm/vmx.c in the KVM subsystem in the Linux kernel before 3.17.2 on Intel processors does not ensure that the value in the CR4 control register remains the same after a VM entry, which allows host OS users to kill arbitrary processes or cause a denial of service (system disruption) by leveraging /dev/kvm access, as demonstrated by PR_SET_TSC prctl calls within a modified copy of QEMU.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Linux kernel: 3.0 - 3.17

CPE2.3

• cpe:2.3:o:linux_foundation:linux_kernel:3.0.68:*:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:3.1.10:*:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:3.2.30:*:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:3.3.8:*:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:3.4.79:*:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:3.5.7:*:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:3.6.11:*:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:3.7.10:*:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:3.8.13:*:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:3.9.11:*:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:3.10.29:*:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:3.11.10:*:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:3.12.17:*:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:3.13.11:*:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:3.14.5:*:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:3.15.8:*:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:3.16.1:*:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:3.17:*:*:*:*:*:*:*

External links

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=d974baa398f34393db76be45f7d4d04fbdbb4a0a
http://lists.opensuse.org/opensuse-security-announce/2015-01/msg00035.html
http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00010.html
http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00025.html
http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00015.html
http://rhn.redhat.com/errata/RHSA-2015-0290.html
http://rhn.redhat.com/errata/RHSA-2015-0782.html
http://rhn.redhat.com/errata/RHSA-2015-0864.html
http://secunia.com/advisories/60174
http://www.debian.org/security/2014/dsa-3060
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.17.2
http://www.mandriva.com/security/advisories?name=MDVSA-2015:058
http://www.openwall.com/lists/oss-security/2014/10/21/4
http://www.openwall.com/lists/oss-security/2014/10/29/7
http://www.securityfocus.com/bid/70691
http://www.ubuntu.com/usn/USN-2417-1
http://www.ubuntu.com/usn/USN-2418-1
http://www.ubuntu.com/usn/USN-2419-1
http://www.ubuntu.com/usn/USN-2420-1
http://www.ubuntu.com/usn/USN-2421-1
http://bugzilla.redhat.com/show_bug.cgi?id=1153322
http://github.com/torvalds/linux/commit/d974baa398f34393db76be45f7d4d04fbdbb4a0a

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.