CVE-2014-8559

MEDIUM

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.

References

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

Details

Source: MITRE

Published: 2014-11-10

Updated: 2020-08-13

Type: CWE-400

Risk Information

CVSS v2.0

Base Score: 4.9

Vector: AV:L/AC:L/Au:N/C:N/I:N/A:C

Impact Score: 6.9

Exploitability Score: 3.9

Severity: MEDIUM

CVSS v3.0

Base Score: 5.5

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

Impact Score: 3.6

Exploitability Score: 1.8

Severity: MEDIUM