Vulnerability CVE-2009-0787
Published: 2009-03-24   Modified: 2012-02-13

Description:
The ecryptfs_write_metadata_to_contents function in the eCryptfs functionality in the Linux kernel 2.6.28 before 2.6.28.9 uses an incorrect size when writing kernel memory to an eCryptfs file header, which triggers an out-of-bounds read and allows local users to obtain portions of kernel memory.

Type:

CWE-189

 (Numeric Errors)

CVSS2 => (AV:L/AC:L/Au:N/C:C/I:N/A:N)

CVSS Base Score
Impact Subscore
Exploitability Subscore
4.9/10
6.9/10
3.9/10
Exploit range
Attack complexity
Authentication
Local
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Complete
None
None
Affected software
Linux -> Linux kernel 
Kernel -> Linux 

 References:
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=8faece5f906725c10e7a1f6caf84452abadbdc7b
http://rhn.redhat.com/errata/RHSA-2009-0473.html
http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.28.9
http://www.securityfocus.com/archive/1/507985/100/0/threaded
http://www.securityfocus.com/bid/34216
http://www.securitytracker.com/id?1022177
http://www.vmware.com/security/advisories/VMSA-2009-0016.html
http://www.vupen.com/english/advisories/2009/0802
http://www.vupen.com/english/advisories/2009/3316
https://exchange.xforce.ibmcloud.com/vulnerabilities/49355
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11068
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A8319
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