CVE - CVE-2012-2100

CVE-ID
CVE-2012-2100	Learn more at National Vulnerability Database (NVD) • Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings
Description
The ext4_fill_flex_info function in fs/ext4/super.c in the Linux kernel before 3.2.2, on the x86 platform and unspecified other platforms, allows user-assisted remote attackers to trigger inconsistent filesystem-groups data and possibly cause a denial of service via a malformed ext4 filesystem containing a super block with a large FLEX_BG group size (aka s_log_groups_per_flex value). NOTE: this vulnerability exists because of an incomplete fix for CVE-2009-4307.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MLIST:[oss-security] 20120412 Re: fix to CVE-2009-4307 URL:http://www.openwall.com/lists/oss-security/2012/04/12/11 CONFIRM:http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=d50f2ab6f050311dbf7b8f5501b25f0bf64a439b CONFIRM:http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.2.2 CONFIRM:https://bugzilla.redhat.com/show_bug.cgi?id=809687 CONFIRM:https://github.com/torvalds/linux/commit/d50f2ab6f050311dbf7b8f5501b25f0bf64a439b REDHAT:RHSA-2012:1445 URL:http://rhn.redhat.com/errata/RHSA-2012-1445.html REDHAT:RHSA-2012:1580 URL:http://rhn.redhat.com/errata/RHSA-2012-1580.html BID:53414 URL:http://www.securityfocus.com/bid/53414
Assigning CNA
N/A
Date Entry Created
20120404	Disclaimer: The entry creation date may reflect when the CVE-ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20120404)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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