CVE-2011-2492

Name: CVE-2011-2492
Creator: NVD / NIST
Published: 2011-07-28T22:55:01.593+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 0.35%

Last modified Jun 16, 2026

CVE-2011-2492 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 0.35% chance of exploitation in the next 30 days.

Description

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.

Metrics

EPSS Probability

0.35%

27.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-200

Affected Software

Vendor	Product	Versions
Linux	Linux Kernel	< 3.0
Linux	Linux Kernel	3.0
Redhat	Enterprise Linux Aus	5.6
Redhat	Enterprise Linux Desktop	5.0
Redhat	Enterprise Linux Eus	5.6
Redhat	Enterprise Linux Server	5.0
Redhat	Enterprise Linux Workstation	5.0

References

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=8d03e971cf403305217b8e62db3a2e5ad2d6263f
http://marc.info/?l=bugtraq&m=139447903326211&w=2Third Party Advisory
http://permalink.gmane.org/gmane.linux.bluez.kernel/12909Broken Link
http://rhn.redhat.com/errata/RHSA-2011-0927.htmlThird Party Advisory
http://securitytracker.com/id?1025778Third Party Advisory, VDB Entry
http://www.kernel.org/pub/linux/kernel/v3.0/testing/ChangeLog-3.0-rc4Broken Link
http://www.openwall.com/lists/oss-security/2011/06/24/2Mailing List, Patch, Third Party Advisory
http://www.openwall.com/lists/oss-security/2011/06/24/3Mailing List, Patch, Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=703019Issue Tracking, Patch, Third Party Advisory
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=8d03e971cf403305217b8e62db3a2e5ad2d6263f
http://marc.info/?l=bugtraq&m=139447903326211&w=2Third Party Advisory
http://permalink.gmane.org/gmane.linux.bluez.kernel/12909Broken Link
http://rhn.redhat.com/errata/RHSA-2011-0927.htmlThird Party Advisory
http://securitytracker.com/id?1025778Third Party Advisory, VDB Entry
http://www.kernel.org/pub/linux/kernel/v3.0/testing/ChangeLog-3.0-rc4Broken Link
http://www.openwall.com/lists/oss-security/2011/06/24/2Mailing List, Patch, Third Party Advisory
http://www.openwall.com/lists/oss-security/2011/06/24/3Mailing List, Patch, Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=703019Issue Tracking, Patch, Third Party Advisory

Timeline

Published: Jul 28, 2011
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2011-2492?

How severe is CVE-2011-2492?

Severity scoring for CVE-2011-2492 is pending analysis. The EPSS model estimates a 0.35% probability of exploitation in the next 30 days.

How do I fix CVE-2011-2492?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2011-2492?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST