Vulnerability Description
The Linux kernel through 3.14.5 does not properly consider the presence of hugetlb entries, which allows local users to cause a denial of service (memory corruption or system crash) by accessing certain memory locations, as demonstrated by triggering a race condition via numa_maps read operations during hugepage migration, related to fs/proc/task_mmu.c and mm/mempolicy.c.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Redhat | Enterprise Linux | 6.0 |
| Redhat | Enterprise Mrg | 2.0 |
| Linux | Linux Kernel | <= 3.14.5 |
Related Weaknesses (CWE)
References
- http://rhn.redhat.com/errata/RHSA-2015-0290.html
- http://rhn.redhat.com/errata/RHSA-2015-1272.html
- http://secunia.com/advisories/59011
- http://secunia.com/advisories/61310
- http://www.openwall.com/lists/oss-security/2014/06/02/5
- http://www.securityfocus.com/bid/67786
- https://bugzilla.redhat.com/show_bug.cgi?id=1104097
- https://lkml.org/lkml/2014/3/18/784
- https://support.f5.com/kb/en-us/solutions/public/15000/600/sol15685.html
- http://rhn.redhat.com/errata/RHSA-2015-0290.html
- http://rhn.redhat.com/errata/RHSA-2015-1272.html
- http://secunia.com/advisories/59011
- http://secunia.com/advisories/61310
- http://www.openwall.com/lists/oss-security/2014/06/02/5
- http://www.securityfocus.com/bid/67786
FAQ
What is CVE-2014-3940?
CVE-2014-3940 is a vulnerability with a CVSS score of 4.0 (MEDIUM). The Linux kernel through 3.14.5 does not properly consider the presence of hugetlb entries, which allows local users to cause a denial of service (memory corruption or system crash) by accessing certa...
How severe is CVE-2014-3940?
CVE-2014-3940 has been rated MEDIUM with a CVSS base score of 4.0/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2014-3940?
Check the references section above for vendor advisories and patch information. Affected products include: Redhat Enterprise Linux, Redhat Enterprise Mrg, Linux Linux Kernel.