CVE-2015-8952

Sažetak

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.

Reference

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

CVSS

Base:	2.1
Impact:	2.9
Exploitability:	3.9

Pristup

Vektor	Složenost	Autentikacija
LOCAL	LOW	NONE

Impact

Povjerljivost	Cjelovitost	Dostupnost
NONE	NONE	PARTIAL

CVSS vektor

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

Zadnje važnije ažuriranje

16-03-2018 - 01:29

Objavljeno

16-10-2016 - 21:59