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NOTICE UPDATE

NIST has updated the NVD program announcement page with additional information regarding recent concerns and the temporary delays in enrichment efforts.

CVE-2015-8952 Detail

Description

The mbcache feature in the ext2 and ext4 filesystem implementations in the Linux kernel before 4.6 mishandles xattr block caching, which allows local users to cause a denial of service (soft lockup) via filesystem operations in environments that use many attributes, as demonstrated by Ceph and Samba.


Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score:  5.5 MEDIUM
Vector:  CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H


NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.

Note: NVD Analysts have published a CVSS score for this CVE based on publicly available information at the time of analysis. The CNA has not provided a score within the CVE List.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=82939d7999dfc1f1998c4b1c12e2f19edbdff272 Patch 
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=be0726d33cb8f411945884664924bed3cb8c70ee Patch 
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f9a61eb4e2471c56a63cd804c7474128138c38ac Patch 
http://www.openwall.com/lists/oss-security/2016/08/22/2 Third Party Advisory 
http://www.openwall.com/lists/oss-security/2016/08/25/4 Patch  Third Party Advisory 
https://bugzilla.kernel.org/show_bug.cgi?id=107301 Issue Tracking  Third Party Advisory 
https://bugzilla.redhat.com/show_bug.cgi?id=1360968 Issue Tracking  Third Party Advisory  VDB Entry 
https://github.com/torvalds/linux/commit/82939d7999dfc1f1998c4b1c12e2f19edbdff272 Vendor Advisory 
https://github.com/torvalds/linux/commit/be0726d33cb8f411945884664924bed3cb8c70ee Issue Tracking  Patch 
https://github.com/torvalds/linux/commit/f9a61eb4e2471c56a63cd804c7474128138c38ac Issue Tracking 
https://lwn.net/Articles/668718/ Third Party Advisory 
https://usn.ubuntu.com/3582-1/
https://usn.ubuntu.com/3582-2/

Weakness Enumeration

CWE-ID CWE Name Source
CWE-19 Data Processing Errors cwe source acceptance level NIST  

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Change History

4 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2015-8952
NVD Published Date:
10/16/2016
NVD Last Modified:
03/15/2018
Source:
MITRE