Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2009-2406

Severity CVSS v4.0:
Pending analysis
Type:
CWE-119 Buffer Errors
Publication date:
31/07/2009
Last modified:
09/04/2025

Description

Stack-based buffer overflow in the parse_tag_11_packet function in fs/ecryptfs/keystore.c in the eCryptfs subsystem in the Linux kernel before 2.6.30.4 allows local users to cause a denial of service (system crash) or possibly gain privileges via vectors involving a crafted eCryptfs file, related to not ensuring that the key signature length in a Tag 11 packet is compatible with the key signature buffer size.

Impact

Vector 2.0
AV:L/AC:M/Au:N/C:C/I:C/A:C CVSS v2.0 Severity and Metrics:

Base Score: 6.90 MEDIUM
Vector: AV:L/AC:M/Au:N/C:C/I:C/A:C

Attack Vector (AV): Local
Attack Complexity (AC): Medium
Authentication (Au): None
Confidentiality (C): Complete
Integrity (I): Complete
Availability (A): Complete

Base Score 2.0
6.90
Severity 2.0
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:linux:kernel:2.6.24.7:*:*:*:*:*:*:*
cpe:2.3:a:linux:kernel:2.6.25.15:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 2.6.30.3 (including)
cpe:2.3:o:linux:linux_kernel:2.2.6:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.0:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.0:*:64-bit_x86:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.0:*:itanium_ia64_montecito:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.0:test1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.0:test10:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.0:test11:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.0:test2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.0:test3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.0:test4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.0:test5:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools