Executive Summary

Informations
Name CVE-2009-4895 First vendor Publication 2010-09-08
Vendor Cve Last vendor Modification 2023-12-28

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Overall CVSS Score 4.7
Base Score 4.7 Environmental Score 4.7
impact SubScore 3.6 Temporal Score 4.7
Exploitabality Sub Score 1
 
Attack Vector Local Attack Complexity High
Privileges Required Low User Interaction None
Scope Unchanged Confidentiality Impact None
Integrity Impact None Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:L/AC:M/Au:N/C:N/I:N/A:C)
Cvss Base Score 4.7 Attack Range Local
Cvss Impact Score 6.9 Attack Complexity Medium
Cvss Expoit Score 3.4 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

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.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-4895

CWE : Common Weakness Enumeration

% Id Name
50 % CWE-476 NULL Pointer Dereference
50 % CWE-362 Race Condition

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 1
Os 6
Os 1
Os 1207

OpenVAS Exploits

Date Description
2011-03-07 Name : Ubuntu Update for linux-lts-backport-maverick vulnerabilities USN-1083-1
File : nvt/gb_ubuntu_USN_1083_1.nasl
2010-10-22 Name : Ubuntu Update for Linux kernel vulnerabilities USN-1000-1
File : nvt/gb_ubuntu_USN_1000_1.nasl
2010-10-10 Name : Debian Security Advisory DSA 2094-1 (linux-2.6)
File : nvt/deb_2094_1.nasl

Open Source Vulnerability Database (OSVDB)

Id Description
67894 Linux Kernel drivers/char/tty_io.c tty_fasync Function Race Condition Local DoS

Nessus® Vulnerability Scanner

Date Description
2013-03-09 Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-1083-1.nasl - Type : ACT_GATHER_INFO
2010-10-20 Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-1000-1.nasl - Type : ACT_GATHER_INFO
2010-08-23 Name : The remote Debian host is missing a security-related update.
File : debian_DSA-2094.nasl - Type : ACT_GATHER_INFO

Sources (Detail)

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3...
Source Url
CONFIRM http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.32.6
https://bugzilla.kernel.org/show_bug.cgi?id=14605
https://bugzilla.redhat.com/show_bug.cgi?id=559100
DEBIAN http://www.debian.org/security/2010/dsa-2094
MLIST http://www.openwall.com/lists/oss-security/2010/06/15/2
http://www.openwall.com/lists/oss-security/2010/06/15/3
http://www.openwall.com/lists/oss-security/2010/06/15/4
http://www.openwall.com/lists/oss-security/2010/06/15/5
UBUNTU http://www.ubuntu.com/usn/USN-1000-1

Alert History

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