The load_flat_shared_library function in fs/binfmt_flat.c in the flat subsystem in the Linux kernel before 2.6.31-rc6 allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact by executing a shared flat binary, which triggers an access of an "uninitialized cred pointer."
Published 2009-08-14 15:16:28
Updated 2024-02-09 03:22:44
Source MITRE
View at NVD,   CVE.org
Vulnerability category: Memory CorruptionDenial of service

Threat overview for CVE-2009-2768

Top countries where our scanners detected CVE-2009-2768
Top open port discovered on systems with this issue 52869
IPs affected by CVE-2009-2768 14,568
Threat actors abusing to this issue? Yes
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Exploit prediction scoring system (EPSS) score for CVE-2009-2768

0.04%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 6 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2009-2768

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
7.2
HIGH AV:L/AC:L/Au:N/C:C/I:C/A:C
3.9
10.0
NIST
7.8
HIGH CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
1.8
5.9
NIST

CWE ids for CVE-2009-2768

  • A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit.
    Assigned by: nvd@nist.gov (Primary)
  • The product accesses or uses a pointer that has not been initialized.
    Assigned by: nvd@nist.gov (Primary)

Vendor statements for CVE-2009-2768

  • Red Hat 2009-08-18
    Not vulnerable. This issue did not affect the versions of Linux kernel as shipped with Red Hat Enterprise Linux 3, 4, 5 or Red Hat Enterprise MRG. Red Hat does not provide support for flat binary support, and additionally this issue only affected kernels version 2.6.29-rc1 and later.

References for CVE-2009-2768

Products affected by CVE-2009-2768

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