Vulnerability Details : CVE-2009-2406

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.
Published 2009-07-31 19:00:01
Updated 2023-02-13 02:20:16
Source Red Hat, Inc.
View at NVD,   CVE.org
Vulnerability category: OverflowDenial of service

Products affected by CVE-2009-2406

Threat overview for CVE-2009-2406

Top countries where our scanners detected CVE-2009-2406
Top open port discovered on systems with this issue 52869
IPs affected by CVE-2009-2406 352,045
Threat actors abusing to this issue? Yes
Find out if you* are affected by CVE-2009-2406!
*Directly or indirectly through your vendors, service providers and 3rd parties. Powered by attack surface intelligence from SecurityScorecard.

Exploit prediction scoring system (EPSS) score for CVE-2009-2406

EPSS FAQ
0.04%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 8 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2009-2406

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
6.9
 MEDIUM AV:L/AC:M/Au:N/C:C/I:C/A:C
3.4
10.0
 NIST

CWE ids for CVE-2009-2406

  • The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.
    Assigned by: nvd@nist.gov (Primary)

Vendor statements for CVE-2009-2406

  • Red Hat 2009-08-18
    The Linux kernel as shipped with Red Hat Enterprise Linux 3, 4, and Red Hat Enterprise MRG did not include support for eCryptfs, and therefore are not affected by this issue. Red Hat Enterprise Linux 5 was vulnerable to this issue and was addressed via: https://rhn.redhat.com/errata/RHSA-2009-1193.html

References for CVE-2009-2406

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