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.
EPSS: 0.004 (33.1th percentile) — read the EPSS interpretation.
Affected products
- Linux Linux_kernel
- N/a — versions n/a
Public proof-of-concept exploits
References
- secalert@redhat.com (x_refsource_CONFIRM, Issue Tracking)
- secalert@redhat.com (x_refsource_REDHAT, vendor-advisory, Third Party Advisory)
- secalert@redhat.com (x_refsource_REDHAT, vendor-advisory, VDB Entry, Third Party Advisory)
- secalert@redhat.com (x_refsource_CONFIRM, Broken Link)
- secalert@redhat.com (vendor-advisory, Third Party Advisory, x_refsource_SUSE)
- secalert@redhat.com (x_refsource_CONFIRM, 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.