CVE - CVE-2012-2100

CVE-ID
CVE-2012-2100	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
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.
MISC:53414 URL:http://www.securityfocus.com/bid/53414 MISC:RHSA-2012:1445 URL:http://rhn.redhat.com/errata/RHSA-2012-1445.html MISC:RHSA-2012:1580 URL:http://rhn.redhat.com/errata/RHSA-2012-1580.html MISC:[oss-security] 20120412 Re: fix to CVE-2009-4307 URL:http://www.openwall.com/lists/oss-security/2012/04/12/11 MISC:http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=d50f2ab6f050311dbf7b8f5501b25f0bf64a439b URL:http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=d50f2ab6f050311dbf7b8f5501b25f0bf64a439b MISC:http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.2.2 URL:http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.2.2 MISC:https://bugzilla.redhat.com/show_bug.cgi?id=809687 URL:https://bugzilla.redhat.com/show_bug.cgi?id=809687 MISC:https://github.com/torvalds/linux/commit/d50f2ab6f050311dbf7b8f5501b25f0bf64a439b URL:https://github.com/torvalds/linux/commit/d50f2ab6f050311dbf7b8f5501b25f0bf64a439b
Assigning CNA
Red Hat, Inc.
Date Record Created
20120404	Disclaimer: The record 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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