CVE-2014-8173
HighThe 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.
CVSS 2.0 score
7.2
AV:L/AC:L/Au:N/C:C/I:C/A:C
References
The following references provide additional information about CVE-2014-8173 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.
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Third Party Advisory
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Third Party Advisory VDB Entry
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Third Party Advisory
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Issue Tracking
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PatchKernel patch commithttp://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=ee53664bda169f519ce3c6a22d378f0b946c8178
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PatchKernel patch commithttps://github.com/torvalds/linux/commit/ee53664bda169f519ce3c6a22d378f0b946c8178
Frequently asked questions
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What is CVE-2014-8173?
CVE-2014-8173 is a High severity Linux kernel vulnerability with a CVSS score of 7.2 out of 10 . CVE-2014-8173 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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What is the CVSS score for CVE-2014-8173?
CVE-2014-8173 has a CVSS score of 7.2 out of 10, rated High severity (CVSS 2.0). The vector string is
AV:L/AC:L/Au:N/C:C/I:C/A:C. -
Is there a patch available for CVE-2014-8173?
No patch is currently available for CVE-2014-8173. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
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Is CVE-2014-8173 actively exploited?
No — CVE-2014-8173 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.