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CVE
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CVE-2009-0746

Date: (C)2009-02-27   (M)2017-10-04
 
CVSS Score: 4.9Access Vector: LOCAL
Exploitability Subscore: 3.9Access Complexity: LOW
Impact Subscore: 6.9Authentication: NONE
 Confidentiality: NONE
 Integrity: NONE
 Availability: COMPLETE











The make_indexed_dir function in fs/ext4/namei.c in the Linux kernel 2.6.27 before 2.6.27.19 and 2.6.28 before 2.6.28.7 does not validate a certain rec_len field, which allows local users to cause a denial of service (OOPS) by attempting to mount a crafted ext4 filesystem.

Reference:
http://www.securityfocus.com/archive/1/archive/1/507985/100/0/threaded
SECUNIA-34394
SECUNIA-36562
SECUNIA-37471
OSVDB-52202
ADV-2009-0509
ADV-2009-3316
DSA-1749
RHSA-2009:1243
USN-751-1
http://bugzilla.kernel.org/show_bug.cgi?id=12430
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=e6b8bc09ba2075cd91fbffefcd2778b1a00bd76f
http://kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.27.19
http://kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.28.7
http://www.vmware.com/security/advisories/VMSA-2009-0016.html
linux-kernel-makeindexeddir-ext4-dos(48872)

CPE    26
cpe:/o:linux:linux_kernel:2.6.27.6
cpe:/o:linux:linux_kernel:2.6.28.5
cpe:/o:linux:linux_kernel:2.6.27.5
cpe:/o:linux:linux_kernel:2.6.28.4
...
CWE    1
CWE-20
OVAL    6
oval:org.mitre.oval:def:8381
oval:org.secpod.oval:def:600384
oval:org.secpod.oval:def:202178
oval:org.secpod.oval:def:500497
...

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