CVE-2015-8952

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.

CVSS v3.0 5.5 MEDIUM
CVSS v2.0 2.1 LOW

5.5^/10

CVSS v3.0 : MEDIUM

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

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

2.1^/10

CVSS v2.0 : LOW

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

Exploitability : 3.9 / Impact : 2.9

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References

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

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Configurations

Configuration 1 (hide)

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Information

Published : 2016-10-16 14:59

Updated : 2018-03-15 18:29

NVD link : CVE-2015-8952

Mitre link : CVE-2015-8952

JSON object : View

CWE

CWE-19

Data Processing Errors

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Products Affected

linux

linux_kernel

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