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Vulnerability Details : 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.
Publish Date : 2016-10-16 Last Update Date : 2018-03-15
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- CVSS Scores & Vulnerability Types

CVSS Score
2.1
Confidentiality Impact None (There is no impact to the confidentiality of the system.)
Integrity Impact None (There is no impact to the integrity of the system)
Availability Impact Partial (There is reduced performance or interruptions in resource availability.)
Access Complexity Low (Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. )
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s) Denial Of Service
CWE ID 19

- Products Affected By CVE-2015-8952

# Product Type Vendor Product Version Update Edition Language
1 OS Linux Linux Kernel 4.5.7 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Linux Linux Kernel 1

- References For CVE-2015-8952

https://usn.ubuntu.com/3582-1/
UBUNTU USN-3582-1
https://usn.ubuntu.com/3582-2/
UBUNTU USN-3582-2
https://lwn.net/Articles/668718/ CONFIRM
https://github.com/torvalds/linux/commit/f9a61eb4e2471c56a63cd804c7474128138c38ac CONFIRM
https://github.com/torvalds/linux/commit/be0726d33cb8f411945884664924bed3cb8c70ee CONFIRM
https://bugzilla.kernel.org/show_bug.cgi?id=107301 CONFIRM
https://bugzilla.redhat.com/show_bug.cgi?id=1360968 CONFIRM
https://github.com/torvalds/linux/commit/82939d7999dfc1f1998c4b1c12e2f19edbdff272 CONFIRM
http://www.openwall.com/lists/oss-security/2016/08/25/4
MLIST [oss-security] 20160825 Re: CVE request: Linux kernel mbcache lock contention denial of service.
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=82939d7999dfc1f1998c4b1c12e2f19edbdff272 CONFIRM
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=be0726d33cb8f411945884664924bed3cb8c70ee CONFIRM
http://www.openwall.com/lists/oss-security/2016/08/22/2
MLIST [oss-security] 20160822 CVE request: Linux kernel mbcache lock contention denial of service.
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f9a61eb4e2471c56a63cd804c7474128138c38ac CONFIRM

- Metasploit Modules Related To CVE-2015-8952

There are not any metasploit modules related to this CVE entry (Please visit www.metasploit.com for more information)


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