CVE-2014-4171

mm/shmem.c in the Linux kernel through 3.15.1 does not properly implement the interaction between range notification and hole punching, which allows local users to cause a denial of service (i_mutex hold) by using the mmap system call to access a hole, as demonstrated by interfering with intended shmem activity by blocking completion of (1) an MADV_REMOVE madvise call or (2) an FALLOC_FL_PUNCH_HOLE fallocate call.

CVSS v2.0 4.7 MEDIUM

4.7^/10

CVSS v2.0 : MEDIUM

Vector : AV:L/AC:M/Au:N/C:N/I:N/A:C

Exploitability : 3.4 / Impact : 6.9

Access Vector LOCAL

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact COMPLETE

References

Link	Resource
https://bugzilla.redhat.com/show_bug.cgi?id=1111180	Issue Tracking Third Party Advisory
http://ozlabs.org/~akpm/mmots/broken-out/shmem-fix-faulting-into-a-hole-while-its-punched.patch	Third Party Advisory
http://www.openwall.com/lists/oss-security/2014/06/18/11	Mailing List Third Party Advisory
http://marc.info/?l=linux-mm-commits&m=140303745420549&w=2	Mailing List Third Party Advisory
http://www.securityfocus.com/bid/68157	Third Party Advisory VDB Entry
http://secunia.com/advisories/59777	Third Party Advisory
http://secunia.com/advisories/60564	Third Party Advisory
http://www.ubuntu.com/usn/USN-2334-1	Third Party Advisory
http://www.ubuntu.com/usn/USN-2335-1	Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2014-1318.html	Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00006.html	Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00007.html	Mailing List Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2015-0102.html	Third Party Advisory
http://www.securitytracker.com/id/1030450	Third Party Advisory VDB Entry

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Configurations

Configuration 1 (hide)

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Configuration 2 (hide)

cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:*

Information

Published : 2014-06-23 04:21

Updated : 2018-12-18 06:38

NVD link : CVE-2014-4171

Mitre link : CVE-2014-4171

JSON object : View

CWE

NVD-CWE-Other

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Products Affected

canonical

ubuntu_linux

linux

linux_kernel

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