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Bug 243150 (CVE-2008-3528) - Kernel: 2.6.26.5 DOS via printk (CVE-2008-3528)
Summary: Kernel: 2.6.26.5 DOS via printk (CVE-2008-3528)
Status: RESOLVED FIXED
Alias: CVE-2008-3528
Product: Gentoo Security
Classification: Unclassified
Component: Kernel (show other bugs)
Hardware: All Linux
: High normal (vote)
Assignee: Gentoo Security
URL: http://git.kernel.org/?p=linux/kernel...
Whiteboard: [linux <2.6.25.20] [linux >=2.6.26 <2...
Keywords:
Depends on:
Blocks:
 
Reported: 2008-10-21 22:21 UTC by Stefan Behte (RETIRED)
Modified: 2013-09-12 05:02 UTC (History)
1 user (show)

See Also:
Package list:
Runtime testing required: ---


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Description Stefan Behte (RETIRED) gentoo-dev Security 2008-10-21 22:21:21 UTC
CVE-2008-3528 (http://nvd.nist.gov/nvd.cfm?cvename=CVE-2008-3528):
  The error-reporting functionality in (1) fs/ext2/dir.c, (2)
  fs/ext3/dir.c, and possibly (3) fs/ext4/dir.c in the Linux kernel
  2.6.26.5 does not limit the number of printk console messages that
  report directory corruption, which allows physically proximate
  attackers to cause a denial of service (temporary system hang) by
  mounting a filesystem that has corrupted dir->i_size and
  dir->i_blocks values and performing (a) read or (b) write operations.
   NOTE: there are limited scenarios in which this crosses privilege
  boundaries.
Comment 1 Stefan Behte (RETIRED) gentoo-dev Security 2008-10-21 22:24:49 UTC
Excluding hardened, as they do not have 2.6.26.5.

http://lkml.org/lkml/2008/9/13/98
http://lkml.org/lkml/2008/9/13/99
http://lkml.org/lkml/2008/9/17/371

Upstream commits:
- bd39597cbd42a784105a04010100e27267481c67 (ext2)
- cdbf6dba28e8e6268c8420857696309470009fd9 (ext3)
- 9d9f177572d9e4eba0f2e18523b44f90dd51fe74 (ext4)