Resource exhaustion in Linux Kernel
CVE-2014-8559
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.
Vulnerability class: DoS (Denial of Service)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.007 (54.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 54th percentile — 54.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000
Affected products
- Linux Kernel
- Novell SUSE Linux Enterprise Desktop — versions 12.0
- Novell SUSE Linux Enterprise Server — versions 12.0
- Oracle Linux — versions 7
- Canonical Ubuntu Linux — versions 12.04, 14.04, 14.10
- openSUSE Evergreen — versions 11.4
- openSUSE — versions 13.1
- SUSE Linux Enterprise Real Time Extension — versions 11
- SUSE Linux Enterprise Software Development Kit — versions 12
- SUSE Linux Enterprise Workstation Extension — versions 12
Weakness classification (CWE)
References
- lkml.org/lkml/2014/10/26/116 (mailing-list, Exploit, Mailing List, Third Party Advisory)
- www.ubuntu.com/usn/USN-2515-1 (vendor-advisory, Third Party Advisory)
- lkml.org/lkml/2014/10/26/101 (mailing-list, Mailing List, Third Party Advisory)
- www.debian.org/security/2015/dsa-3170 (Exploit, vendor-advisory, Patch, Third Party Advisory)
- lists.opensuse.org/opensuse-security-announce/2015-04/msg00015.html (vendor-advisory, Mailing List, Third Party Advisory)
- www.ubuntu.com/usn/USN-2492-1 (vendor-advisory, Third Party Advisory)
- rhn.redhat.com/errata/RHSA-2015-1978.html (vendor-advisory, Third Party Advisory)
- www.openwall.com/lists/oss-security/2014/10/30/7 (mailing-list, Mailing List, Third Party Advisory)
- secunia.com/advisories/62801 (Broken Link, third-party-advisory)
- rhn.redhat.com/errata/RHSA-2015-1976.html (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2014-8559?
- CVE-2014-8559 is a medium-severity vulnerability in Linux Kernel, classified under Uncontrolled Resource Consumption. CVSS score: 5.5/10. Published 2014-11-10.
- How severe is CVE-2014-8559?
- Medium severity. CVSS v3 base score is 5.5 out of 10.