CVE-2009-0787

kernel: ecryptfs file header infoleak

Severity Score

7.1

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

La función ecryptfs_write_metadata_to_contents en la funcionalidad eCryptfs en el kernel Linux v2.6.28 anterior a v2.6.28.9 emplea un tamaño incorrecto cuando escribe de la memoria del kernel a la cabecera del archivo eCryptfs, lo que dispara una lectura fuera de rango y permite a usuarios locales obtener porciones d la memoria del kernel.

*Credits: N/A

CVSS Scores

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

High

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

Complete

Integrity

None

Availability

None

Attack Vector

Local

Attack Complexity

Medium

Authentication

None

Confidentiality

Partial

Integrity

None

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2009-03-04 CVE Reserved
2009-03-25 CVE Published
2023-03-08 EPSS Updated
2024-08-07 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-189: Numeric Errors

CAPEC

References (18)

URL	Tag	Source
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commitdiff%3Bh=8faece5f906725c10e7a1f6caf84452abadbdc7b	X_refsource_confirm
http://osvdb.org/52860	Vdb Entry
http://secunia.com/advisories/35015	Third Party Advisory
http://secunia.com/advisories/37471	Third Party Advisory
http://www.securityfocus.com/archive/1/507985/100/0/threaded	Mailing List
http://www.securitytracker.com/id?1022177	Vdb Entry
http://www.vmware.com/security/advisories/VMSA-2009-0016.html	X_refsource_confirm
http://www.vupen.com/english/advisories/2009/3316	Vdb Entry
https://exchange.xforce.ibmcloud.com/vulnerabilities/49355	Vdb Entry
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11068	Signature
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A8319	Signature

URL	Date	SRC

URL	Date	SRC
http://www.securityfocus.com/bid/34216	2023-02-13

URL	Date	SRC
http://rhn.redhat.com/errata/RHSA-2009-0473.html	2023-02-13
http://secunia.com/advisories/34422	2023-02-13
http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.28.9	2023-02-13
http://www.vupen.com/english/advisories/2009/0802	2023-02-13
https://access.redhat.com/security/cve/CVE-2009-0787	2009-05-07
https://bugzilla.redhat.com/show_bug.cgi?id=491254	2009-05-07

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				2.6.28 Search vendor "Linux" for product "Linux Kernel" and version "2.6.28"		-		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				2.6.28.1 Search vendor "Linux" for product "Linux Kernel" and version "2.6.28.1"		-		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				2.6.28.2 Search vendor "Linux" for product "Linux Kernel" and version "2.6.28.2"		-		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				2.6.28.3 Search vendor "Linux" for product "Linux Kernel" and version "2.6.28.3"		-		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				2.6.28.4 Search vendor "Linux" for product "Linux Kernel" and version "2.6.28.4"		-		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				2.6.28.5 Search vendor "Linux" for product "Linux Kernel" and version "2.6.28.5"		-		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				2.6.28.6 Search vendor "Linux" for product "Linux Kernel" and version "2.6.28.6"		-		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				2.6.28.7 Search vendor "Linux" for product "Linux Kernel" and version "2.6.28.7"		-		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				2.6.28.8 Search vendor "Linux" for product "Linux Kernel" and version "2.6.28.8"		-		Affected