Resource management error in Linux kernel - CVE-2014-8559
Published: November 10, 2014 / Updated: August 10, 2020
Vulnerability identifier: #VU41133
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2014-8559
CWE-ID: CWE-399
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.
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.
How to mitigate CVE-2014-8559
Install update from vendor's website.
Sources
- 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