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CVE
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CVE-2011-4086

Date: (C)2012-07-03   (M)2017-11-18 


The journal_unmap_buffer function in fs/jbd2/transaction.c in the Linux kernel before 3.3.1 does not properly handle the _Delay and _Unwritten buffer head states, which allows local users to cause a denial of service (system crash) by leveraging the presence of an ext4 filesystem that was mounted with a journal.

CVSS Score: 4.9Access Vector: LOCAL
Exploit Score: 3.9Access Complexity: LOW
Impact Score: 6.9Authentication: NONE
 Confidentiality: NONE
 Integrity: NONE
 Availability: COMPLETE





Reference:
SECUNIA-48898
SECUNIA-48964
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=15291164b22a357cb211b618adfef4fa82fc0de3
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.3.1
https://bugzilla.redhat.com/show_bug.cgi?id=749143
https://github.com/torvalds/linux/commit/15291164b22a357cb211b618adfef4fa82fc0de3

CPE    84
cpe:/o:linux:linux_kernel:3.1.10
cpe:/o:linux:linux_kernel:3.1:rc3
cpe:/o:linux:linux_kernel:3.1:rc4
cpe:/o:linux:linux_kernel:3.1:rc1
...
CWE    1
CWE-119
OVAL    35
oval:org.secpod.oval:def:103534
oval:org.secpod.oval:def:103396
oval:org.secpod.oval:def:103444
oval:org.secpod.oval:def:202272
...

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