Vulnerability CVE-2011-2497
Published: 2011-08-29   Modified: 2012-02-13

Description:
Integer underflow in the l2cap_config_req function in net/bluetooth/l2cap_core.c in the Linux kernel before 3.0 allows remote attackers to cause a denial of service (heap memory corruption) or possibly have unspecified other impact via a small command-size value within the command header of a Logical Link Control and Adaptation Protocol (L2CAP) configuration request, leading to a buffer overflow.

See advisories in our WLB2 database:
Topic
Author
Date
High
Bluetooth: Prevent buffer overflow in l2cap config request
Dan Rosenberg
01.09.2011

Type:

CWE-189

 (Numeric Errors)

CVSS2 => (AV:A/AC:L/Au:N/C:C/I:C/A:C)

CVSS Base Score
Impact Subscore
Exploitability Subscore
8.3/10
10/10
6.5/10
Exploit range
Attack complexity
Authentication
Adjacent network
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Complete
Complete
Complete
Affected software
Linux -> Kernel 

 References:
https://bugzilla.redhat.com/show_bug.cgi?id=716805
http://www.openwall.com/lists/oss-security/2011/06/27/3
http://www.openwall.com/lists/oss-security/2011/06/24/9
http://marc.info/?l=linux-kernel&m=130891911909436&w=2
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=7ac28817536797fd40e9646452183606f9e17f71
http://www.securityfocus.com/bid/48472
http://www.osvdb.org/74679
http://www.kernel.org/pub/linux/kernel/v3.0/ChangeLog-3.0
http://securityreason.com/securityalert/8359
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