Vulnerability Monitor

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CVE-2011-2492

The bluetooth subsystem in the Linux kernel before 3.0-rc4 does not properly initialize certain data structures, which allows local users to obtain potentially sensitive information from kernel memory via a crafted getsockopt system call, related to (1) the l2cap_sock_getsockopt_old function in net/bluetooth/l2cap_sock.c and (2) the rfcomm_sock_getsockopt_old function in net/bluetooth/rfcomm/sock.c.

Security Impact Summary

CVE-2011-2492 is a security vulnerability that . Impacting 6 products from linux, from redhat, from redhat and 3 others, organizations running these solutions should prioritize assessment and patching.

Historical Context

Documented in 2011, this vulnerability occurred amid the cloud computing expansion era, where traditional network perimeter security models were being reevaluated. Organizations were transitioning from isolated infrastructure to interconnected systems, creating new attack surfaces that vulnerabilities like this could exploit.

Published

2011-07-28T22:55:01.593

Last Modified

2025-04-11T00:51:21.963

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 1.9 (LOW)

CVSSv2 Vector

AV:L/AC:M/Au:N/C:P/I:N/A:N

Access Vector: LOCAL
Access Complexity: MEDIUM
Authentication: NONE
Confidentiality Impact: PARTIAL
Integrity Impact: NONE
Availability Impact: NONE

Exploitability Score

3.4

Impact Score

2.9

Weaknesses

Type: Primary
CWE-200

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Operating System	linux	linux_kernel	< 3.0	Yes
Operating System	linux	linux_kernel	3.0	Yes
Operating System	linux	linux_kernel	3.0	Yes
Operating System	linux	linux_kernel	3.0	Yes
Operating System	linux	linux_kernel	3.0	Yes
Operating System	redhat	enterprise_linux_aus	5.6	Yes
Operating System	redhat	enterprise_linux_desktop	5.0	Yes
Operating System	redhat	enterprise_linux_eus	5.6	Yes
Operating System	redhat	enterprise_linux_server	5.0	Yes
Operating System	redhat	enterprise_linux_workstation	5.0	Yes

References

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=8d03e971cf403305217b8e62db3a2e5ad2d6263f ([email protected])
http://marc.info/?l=bugtraq&m=139447903326211&w=2 Third Party Advisory ([email protected])
http://permalink.gmane.org/gmane.linux.bluez.kernel/12909 Broken Link ([email protected])
http://rhn.redhat.com/errata/RHSA-2011-0927.html Third Party Advisory ([email protected])
http://securitytracker.com/id?1025778 Third Party Advisory, VDB Entry ([email protected])
http://www.kernel.org/pub/linux/kernel/v3.0/testing/ChangeLog-3.0-rc4 Broken Link ([email protected])
http://www.openwall.com/lists/oss-security/2011/06/24/2 Mailing List, Patch, Third Party Advisory ([email protected])
http://www.openwall.com/lists/oss-security/2011/06/24/3 Mailing List, Patch, Third Party Advisory ([email protected])
https://bugzilla.redhat.com/show_bug.cgi?id=703019 Issue Tracking, Patch, Third Party Advisory ([email protected])
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=8d03e971cf403305217b8e62db3a2e5ad2d6263f (af854a3a-2127-422b-91ae-364da2661108)
http://marc.info/?l=bugtraq&m=139447903326211&w=2 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://permalink.gmane.org/gmane.linux.bluez.kernel/12909 Broken Link (af854a3a-2127-422b-91ae-364da2661108)
http://rhn.redhat.com/errata/RHSA-2011-0927.html Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://securitytracker.com/id?1025778 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
http://www.kernel.org/pub/linux/kernel/v3.0/testing/ChangeLog-3.0-rc4 Broken Link (af854a3a-2127-422b-91ae-364da2661108)
http://www.openwall.com/lists/oss-security/2011/06/24/2 Mailing List, Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.openwall.com/lists/oss-security/2011/06/24/3 Mailing List, Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://bugzilla.redhat.com/show_bug.cgi?id=703019 Issue Tracking, Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For linux's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.