CVE-2014-5045

Linux Kernel < 3.15.8 - Denial of Service via Symlink Handling in mountpoint_last

Title source: llm
STIX 2.1

Description

The mountpoint_last function in fs/namei.c in the Linux kernel before 3.15.8 does not properly maintain a certain reference count during attempts to use the umount system call in conjunction with a symlink, which allows local users to cause a denial of service (memory consumption or use-after-free) or possibly have unspecified other impact via the umount program.

References (8)

Core 8
Core References
Mailing List, Third Party Advisory mailing-list x_refsource_mlist
http://www.openwall.com/lists/oss-security/2014/07/24/2
Exploit, Patch, Third Party Advisory x_refsource_confirm
https://github.com/torvalds/linux/commit/295dc39d941dc2ae53d5c170365af4c9d5c16212
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/68862
Third Party Advisory vendor-advisory x_refsource_redhat
http://rhn.redhat.com/errata/RHSA-2015-0062.html
Patch, Third Party Advisory, Vendor Advisory x_refsource_confirm
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.15.8
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/60353
Issue Tracking, Third Party Advisory x_refsource_confirm
https://bugzilla.redhat.com/show_bug.cgi?id=1122472

Scores

EPSS 0.0049
EPSS Percentile 38.0%

Details

CWE
CWE-59
Status published
Products (4)
linux/linux_kernel < 3.15.8
redhat/enterprise_linux_eus 6.5
redhat/enterprise_linux_server_aus 6.5
redhat/enterprise_linux_server_tus 6.5
Published Aug 01, 2014
Tracked Since Feb 18, 2026