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USN-1432-1: Linux kernel vulnerabilities

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USN-1432-1: Linux kernel vulnerabilities

Severity

CVSS

(AV:N/AC:M/Au:N/C:N/I:N/A:C)

Published

07/03/2012

Created

07/25/2018

Added

05/06/2013

Modified

07/09/2020

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.

Solution(s)

ubuntu-upgrade-linux-image-2-6-38-15-generic
ubuntu-upgrade-linux-image-2-6-38-15-generic-pae
ubuntu-upgrade-linux-image-2-6-38-15-omap
ubuntu-upgrade-linux-image-2-6-38-15-powerpc
ubuntu-upgrade-linux-image-2-6-38-15-powerpc-smp
ubuntu-upgrade-linux-image-2-6-38-15-powerpc64-smp
ubuntu-upgrade-linux-image-2-6-38-15-server
ubuntu-upgrade-linux-image-2-6-38-15-versatile
ubuntu-upgrade-linux-image-2-6-38-15-virtual

References

https://attackerkb.com/topics/cve-2011-4086
53414
55361
CVE - 2011-4086
CVE - 2012-1090
CVE - 2012-2100
CVE - 2012-4398
RHSA-2012:0531
RHSA-2012:1445
RHSA-2012:1580
RHSA-2013:0223
RHSA-2013:1348
USN-1432-1

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