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CVE-2014-3940

Date: June 5, 2014

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.

Language: C

Severity Score

Related Resources (14)

http://secunia.com/advisories/59011
https://lkml.org/lkml/2014/3/18/784
http://rhn.redhat.com/errata/RHSA-2015-1272.html
http://www.openwall.com/lists/oss-security/2014/06/02/5
http://rhn.redhat.com/errata/RHSA-2015-0290.html
https://nvd.nist.gov/vuln/detail/CVE-2014-3940
https://security-tracker.debian.org/tracker/CVE-2014-3940
https://people.canonical.com/~ubuntu-security/cve/CVE-2014-3940
https://access.redhat.com/security/cve/CVE-2014-3940
https://support.f5.com/kb/en-us/solutions/public/15000/600/sol15685.html
http://www.securityfocus.com/bid/67786
http://secunia.com/advisories/61310
https://bugzilla.redhat.com/show_bug.cgi?id=1104097
https://www.mend.io/vulnerability-database/CVE-2014-3940

Severity Score

Weakness Type (CWE)

Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CWE-362

CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): HIGH
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): LOCAL
Access Complexity (AC): HIGH
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): COMPLETE
Additional information:

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