SB2014111011 - Permissions, Privileges, and Access Controls in Linux kernel
Published: November 10, 2014 Updated: August 10, 2020
Security Bulletin ID
SB2014111011
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Partial DoS
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2014-3646)
CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls
CVSSv4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
The vulnerability allows a remote non-authenticated attacker to perform service disruption.
arch/x86/kvm/vmx.c in the KVM subsystem in the Linux kernel through 3.17.2 does not have an exit handler for the INVVPID instruction, which allows guest OS users to cause a denial of service (guest OS crash) via a crafted application.
Remediation
Install update from vendor's website.
References
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=a642fc305053cc1c6e47e4f4df327895747ab485
- http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00010.html
- http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00025.html
- http://rhn.redhat.com/errata/RHSA-2015-0126.html
- http://rhn.redhat.com/errata/RHSA-2015-0284.html
- http://www.debian.org/security/2014/dsa-3060
- http://www.openwall.com/lists/oss-security/2014/10/24/9
- http://www.ubuntu.com/usn/USN-2394-1
- http://www.ubuntu.com/usn/USN-2417-1
- http://www.ubuntu.com/usn/USN-2418-1
- https://bugzilla.redhat.com/show_bug.cgi?id=1144825
- https://github.com/torvalds/linux/commit/a642fc305053cc1c6e47e4f4df327895747ab485