CVE-2014-8559 Information

Description

The d_walk function in fs/dcache.c in the Linux kernel through 3.17.2 does not properly maintain the semantics of rename_lock which allows local users to cause a denial of service (deadlock and system hang) via a crafted application.

CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Reference

http://lists.opensuse.org/opensuse-security-announce/2015-01/msg00035.html http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00010.html http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00020.html http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00025.html http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00009.html http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00015.html http://rhn.redhat.com/errata/RHSA-2015-1976.html http://rhn.redhat.com/errata/RHSA-2015-1978.html http://secunia.com/advisories/62801 http://www.debian.org/security/2015/dsa-3170 http://www.openwall.com/lists/oss-security/2014/10/30/7 http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html http://www.securityfocus.com/bid/70854 http://www.securitytracker.com/id/1034051 http://www.ubuntu.com/usn/USN-2492-1 http://www.ubuntu.com/usn/USN-2493-1 http://www.ubuntu.com/usn/USN-2515-1 http://www.ubuntu.com/usn/USN-2516-1 http://www.ubuntu.com/usn/USN-2517-1 http://www.ubuntu.com/usn/USN-2518-1 https://bugzilla.redhat.com/show_bug.cgi?id=1159313 https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=946e51f2bf37f1656916eb75bd0742ba33983c28 https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ca5358ef75fc69fee5322a38a340f5739d997c10 https://lkml.org/lkml/2014/10/25/171 https://lkml.org/lkml/2014/10/25/179 https://lkml.org/lkml/2014/10/25/180 https://lkml.org/lkml/2014/10/26/101 https://lkml.org/lkml/2014/10/26/116 https://lkml.org/lkml/2014/10/26/128 https://lkml.org/lkml/2014/10/26/129 https://support.f5.com/csp/article/K05211147

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

5.5