CVE-2015-4170

MEDIUM

Linux Kernel < 3.13.3 - Denial of Service via ldsem_cmpxchg Race Condition

Title source: llm
STIX 2.1

Description

Race condition in the ldsem_cmpxchg function in drivers/tty/tty_ldsem.c in the Linux kernel before 3.13-rc4-next-20131218 allows local users to cause a denial of service (ldsem_down_read and ldsem_down_write deadlock) by establishing a new tty thread during shutdown of a previous tty thread.

References (8)

Core 8
Core References
Issue Tracking, VDB Entry x_refsource_confirm
https://bugzilla.redhat.com/show_bug.cgi?id=1218879
Mailing List mailing-list x_refsource_mlist
http://www.openwall.com/lists/oss-security/2015/05/26/1
Third Party Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2016:1395
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/74820

Scores

CVSS v3 4.7
EPSS 0.0033
EPSS Percentile 24.1%
Attack Vector LOCAL
CVSS:3.0/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H

Details

CWE
CWE-362
Status published
Products (6)
linux/linux_kernel < 3.13.3
redhat/enterprise_linux_compute_node_eus 7.1
redhat/enterprise_linux_for_ibm_z_systems_eus 7.1_s390x
redhat/enterprise_linux_for_power_big_endian_eus 7.1_ppc64
redhat/enterprise_linux_for_power_little_endian_eus 7.1_ppc64le
redhat/enterprise_linux_server_eus 7.1
Published May 02, 2016
Tracked Since Feb 18, 2026