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CVE-2009-4895

nvd nist
Published: Sep 8, 2010Modified: Apr 29, 2026

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4.7
Vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Exploitability: 1.0 / Impact: 3.6
Source: NVD

Description

Race condition in the tty_fasync function in drivers/char/tty_io.c in the Linux kernel before 2.6.32.6 allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact via unknown vectors, related to the put_tty_queue and __f_setown functions. NOTE: the vulnerability was addressed in a different way in 2.6.32.9.

Affected (8)

Linux
1 product
Linux Kernel
Debian
1 product
Debian Linux
Canonical
1 product
Ubuntu Linux
Configuration A
1 vulnerable
Vulnerable SoftwareAffected Versions
Linux Kernel
Before 2.6.32.6
Configuration B
1 vulnerable
Vulnerable SoftwareAffected Versions
Debian Linux
Version 5.0
Configuration C
6 vulnerable
Vulnerable SoftwareAffected Versions
Canonical
Ubuntu Linux
Version 10.04
Ubuntu Linux
Version 10.10
Ubuntu Linux
Version 6.06
Ubuntu Linux
Version 8.04
Ubuntu Linux
Version 9.04
Ubuntu Linux
Version 9.10

Related CWEs

CWE-362
Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
The product contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently.
CWE-476
NULL Pointer Dereference
The product dereferences a pointer that it expects to be valid but is NULL.

References (20)

Source: cve@mitre.org
Broken Link
Source: cve@mitre.org
Third Party Advisory
Source: cve@mitre.org
Broken Link
Source: cve@mitre.org
Mailing ListPatchThird Party Advisory
Source: cve@mitre.org
Mailing ListThird Party Advisory
Source: cve@mitre.org
Mailing ListThird Party Advisory
Source: cve@mitre.org
Mailing ListThird Party Advisory
Source: cve@mitre.org
Third Party Advisory
Source: cve@mitre.org
Issue TrackingPatch
Source: cve@mitre.org
Issue TrackingThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Broken Link
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Broken Link
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing ListPatchThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing ListThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing ListThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing ListThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Issue TrackingPatch
Source: af854a3a-2127-422b-91ae-364da2661108
Issue TrackingThird Party Advisory

Timeline

No history available yet.