Vulnerability in Linux Kernel
CVE-2014-8173
The pmd_none_or_trans_huge_or_clear_bad function in include/asm-generic/pgtable.h in the Linux kernel before 3.13 on NUMA systems does not properly determine whether a Page Middle Directory (PMD) entry is a transparent huge-table entry, which allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact via a crafted MADV_WILLNEED madvise system call that leverages the absence of a page-table lock.
Published · last modified .
CVSS v2 metric
CVSS v2 base score 7.2 (High). Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.004 (32.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 32nd percentile — 32.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
Public proof-of-concept exploits
References
- bugzilla.redhat.com/show_bug.cgi (Issue Tracking)
- rhn.redhat.com/errata/RHSA-2015-0694.html (vendor-advisory, Third Party Advisory)
- rhn.redhat.com/errata/RHSA-2015-0290.html (vendor-advisory, VDB Entry, Third Party Advisory)
- git.kernel.org/ (Broken Link)
- lists.opensuse.org/opensuse-security-announce/2015-04/msg00009.html (vendor-advisory, Third Party Advisory)
- github.com/torvalds/linux/commit/ee53664bda169f519ce3c6a22d378f0b946c8178 (Third Party Advisory)
Frequently asked questions
- What is CVE-2014-8173?
- CVE-2014-8173 is a vulnerability in Linux Kernel. Published 2015-03-16.
- Is CVE-2014-8173 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.