Resource management error in Linux kernel - CVE-2014-3690
Published: November 10, 2014 / Updated: August 10, 2020
Vulnerability identifier: #VU41139
CSH Severity: Medium
CVSS v4: 6.9 [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]
CVE-ID: CVE-2014-3690
CWE-ID: CWE-399
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
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.
Affected software
Linux kernel
Fedora
kernel
Fedora
kernel
How to mitigate CVE-2014-3690
Install update from vendor's website.
kernel - addressed in versions 3.17.1-303.fc21, 3.17.1-304.fc21, 3.17.2-300.fc21
External References
- 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
- https://bugzilla.redhat.com/show_bug.cgi?id=1153322
- https://github.com/torvalds/linux/commit/d974baa398f34393db76be45f7d4d04fbdbb4a0a