CVE - CVE-2014-4171

CVE-ID
CVE-2014-4171	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
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.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
BID:68157 URL:http://www.securityfocus.com/bid/68157 CONFIRM:http://ozlabs.org/~akpm/mmots/broken-out/shmem-fix-faulting-into-a-hole-while-its-punched.patch CONFIRM:https://bugzilla.redhat.com/show_bug.cgi?id=1111180 MLIST:[mm-commits] 20140617 + shmem-fix-faulting-into-a-hole-while-its-punched.patch added to -mm tree URL:http://marc.info/?l=linux-mm-commits&m=140303745420549&w=2 MLIST:[oss-security] 20140618 CVE-2014-4171 - Linux kernel mm/shmem.c denial of service URL:http://www.openwall.com/lists/oss-security/2014/06/18/11 REDHAT:RHSA-2014:1318 URL:http://rhn.redhat.com/errata/RHSA-2014-1318.html REDHAT:RHSA-2015:0102 URL:http://rhn.redhat.com/errata/RHSA-2015-0102.html SECTRACK:1030450 URL:http://www.securitytracker.com/id/1030450 SECUNIA:59777 URL:http://secunia.com/advisories/59777 SECUNIA:60564 URL:http://secunia.com/advisories/60564 SUSE:SUSE-SU-2014:1316 URL:http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00006.html SUSE:SUSE-SU-2014:1319 URL:http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00007.html UBUNTU:USN-2334-1 URL:http://www.ubuntu.com/usn/USN-2334-1 UBUNTU:USN-2335-1 URL:http://www.ubuntu.com/usn/USN-2335-1
Assigning CNA
MITRE Corporation
Date Record Created
20140617	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20140617)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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