CVE-2009-0787

Summary

CVE	CVE-2009-0787
State	PUBLISHED
Assigner	redhat
Source Priority	CVE Program / NVD first with legacy fallback
Published	2009-03-25 01:30:00 UTC
Updated	2026-04-23 00:35:47 UTC
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.

Risk And Classification

Primary CVSS: v2.0 4.9 from [email protected]

AV:L/AC:L/Au:N/C:C/I:N/A:N

Problem Types: CWE-189 | n/a

CVSS v2.0 Breakdown

Access Vector

Local

Access Complexity

Low

Authentication

None

Confidentiality

Complete

Integrity

None

Availability

None

AV:L/AC:L/Au:N/C:C/I:N/A:N

NVD Known Affected Configurations (CPE 2.3)

Type	Vendor	Product	Version	Update	Edition	Language
Operating System	Linux	Linux Kernel	2.6.28	All	All	All
Operating System	Linux	Linux Kernel	2.6.28.1	All	All	All
Operating System	Linux	Linux Kernel	2.6.28.2	All	All	All
Operating System	Linux	Linux Kernel	2.6.28.3	All	All	All
Operating System	Linux	Linux Kernel	2.6.28.4	All	All	All
Operating System	Linux	Linux Kernel	2.6.28.5	All	All	All
Operating System	Linux	Linux Kernel	2.6.28.6	All	All	All
Operating System	Linux	Linux Kernel	2.6.28.7	All	All	All
Operating System	Linux	Linux Kernel	2.6.28.8	All	All	All

Vendor Declared Affected Products

Source	Vendor	Product	Version	Platforms
CNA	Na	N/a	affected n/a	Not specified

References

Reference	Source	Link	Tags
Webmail : Solution de messagerie professionnelle - OVHcloud- OVH	af854a3a-2127-422b-91ae-364da2661108	www.vupen.com
git.kernel.org	af854a3a-2127-422b-91ae-364da2661108	git.kernel.org
Repository / Oval Repository	af854a3a-2127-422b-91ae-364da2661108	oval.cisecurity.org
IBM X-Force Exchange	af854a3a-2127-422b-91ae-364da2661108	exchange.xforce.ibmcloud.com
Linux Kernel Information Disclosure and Security Bypass - Secunia Advisories - Vulnerability Information - Secunia.com	af854a3a-2127-422b-91ae-364da2661108	secunia.com	Vendor Advisory
Linux Kernel Bug in ecryptfs_write_metadata_to_contents() Lets Local Users Obtain Portions of Kernel Memory - SecurityTracker	af854a3a-2127-422b-91ae-364da2661108	www.securitytracker.com
Repository / Oval Repository	af854a3a-2127-422b-91ae-364da2661108	oval.cisecurity.org
rhn.redhat.com \| Red Hat Support	af854a3a-2127-422b-91ae-364da2661108	rhn.redhat.com
Linux Kernel 'ecryptfs_write_metadata_to_contents()' Information Disclosure Vulnerability	af854a3a-2127-422b-91ae-364da2661108	www.securityfocus.com	Patch
404: File not found	af854a3a-2127-422b-91ae-364da2661108	www.kernel.org	Vendor Advisory
VMware ESX and vMA Update for Multiple Packages - Secunia Advisories - Vulnerability Information - Secunia.com	af854a3a-2127-422b-91ae-364da2661108	secunia.com
SecurityFocus	af854a3a-2127-422b-91ae-364da2661108	www.securityfocus.com
osvdb.org/52860	af854a3a-2127-422b-91ae-364da2661108	osvdb.org
VMSA-2009-0016.1	af854a3a-2127-422b-91ae-364da2661108	www.vmware.com
Red Hat update for kernel - Secunia Advisories - Vulnerability Information - Secunia.com	af854a3a-2127-422b-91ae-364da2661108	secunia.com
Webmail : Solution de messagerie professionnelle - OVHcloud- OVH	af854a3a-2127-422b-91ae-364da2661108	www.vupen.com	Vendor Advisory
kernel/git/torvalds/linux.git - Linux kernel source tree	MITRE	git.kernel.org
CVE Program record	CVE.ORG	www.cve.org	canonical
NVD vulnerability detail	NVD	nvd.nist.gov	canonical, analysis

Vendor Comments And Credit

Organization	Published	Contributor	Statement
Red Hat	2009-05-19	Tomas Hoger	This issue did not affect the versions of Linux kernel as shipped with Red Hat Enterprise Linux 2.1, 3, 4, and Red Hat Enterprise MRG. It was addressed in Red Hat Enterprise Linux 5 via: https://rhn.redhat.com/errata/RHSA-2009-0473.html .

There are currently no legacy QID mappings associated with this CVE.