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Last updated: 10/20/2014 10:24:07 PM

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Vulnerability Summary for CVE-2010-4242

Original release date: 01/10/2011
Last revised: 03/19/2012
Source: US-CERT/NIST

Overview

The hci_uart_tty_open function in the HCI UART driver (drivers/bluetooth/hci_ldisc.c) in the Linux kernel 2.6.36, and possibly other versions, does not verify whether the tty has a write operation, which allows local users to cause a denial of service (NULL pointer dereference) via vectors related to the Bluetooth driver.

Description

Per: http://cwe.mitre.org/data/definitions/476.html 'CWE-476: NULL Pointer Dereference'

Impact

CVSS Severity (version 2.0):
CVSS v2 Base Score: 4.0 (MEDIUM) (AV:L/AC:H/Au:N/C:N/I:N/A:C) (legend)
Impact Subscore: 6.9
Exploitability Subscore: 1.9
CVSS Version 2 Metrics:
Access Vector: Locally exploitable
Access Complexity: High
Authentication: Not required to exploit
Impact Type: Allows disruption of service

References to Advisories, Solutions, and Tools

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External Source: XF
Name: kernel-hciuartttyopen-dos(64617)
External Source: BUGTRAQ
Name: 20111013 VMSA-2011-0012 VMware ESXi and ESX updates to third party libraries and ESX Service Console
External Source: SECUNIA
Name: 42890
External Source: SECUNIA
Name: 46397
External Source: BID
Name: 45014
External Source: SECUNIA
Name: 43291
External Source: VUPEN
Name: ADV-2011-0168
External Source: SECUNIA
Name: 42789
External Source: VUPEN
Name: ADV-2011-0024
External Source: REDHAT
Name: RHSA-2011:0004
External Source: REDHAT
Name: RHSA-2011:0007
External Source: REDHAT
Name: RHSA-2011:0162
External Source: CONFIRM
Name: http://www.vmware.com/security/advisories/VMSA-2011-0012.html
External Source: SECUNIA
Name: 42963
External Source: CONFIRM
Name: https://bugzilla.redhat.com/show_bug.cgi?id=641410
Type: Patch Information
External Source: CONFIRM
Name: http://git.kernel.org/linus/c19483cc5e56ac5e22dd19cf25ba210ab1537773
Type: Patch Information
External Source: MISC
Name: http://xorl.wordpress.com/2010/12/01/cve-2010-4242-linux-kernel-bluetooth-hci-uart-invalid-pointer-access/
Type: Patch Information; Exploit
External Source: VUPEN
Name: ADV-2011-0375
External Source: MLIST
Name: [linux-kernel] 20101007 Peculiar stuff in hci_ath3k/badness in hci_uart
External Source: SUSE
Name: SUSE-SA:2011:008

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