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.
Key facts
- CVSS score
- 1.9 (v2.0)
- Severity
- LOW
- CVSS vector
AV:L/AC:M/Au:N/C:P/I:N/A:N- Weakness (CWE)
- CWE-200
- EPSS score
- 0.4% (27th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2011-2479)
- Published
- July 28, 2011
- NVD last modified
- June 16, 2026
- Status
- Modified
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2011-2479 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.
View on the EU Vulnerability DatabaseAffected products
- linux / linux kernel
- linux / linux kernel
- linux / linux kernel
- linux / linux kernel
- linux / linux kernel
- redhat / enterprise linux aus
- redhat / enterprise linux desktop
- redhat / enterprise linux eus
- redhat / enterprise linux server
- redhat / enterprise linux workstation
Certified products that may be affected
2 FIPS 140 or Common Criteria certified products, from automated matching by sec-certs.org.
- Red Hat Enterprise Linux Version 5.6 Virtualization with KVM - Red Hat, Inc. - Common Criteria BSI-DSZ-CC-0724-2012 - archived
- Red Hat Enterprise Linux 5 OpenSSH-Server Cryptographic Module - Red Hat®, Inc. - FIPS 140 1384 - historical
References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=2(Third Party Advisory)
- http://permalink.gmane.org/gmane.linux.bluez.kernel/12909(Broken Link)
- http://rhn.redhat.com/errata/RHSA-2011-0927.html(Third Party Advisory)
- http://securitytracker.com/id?1025778(Third Party Advisory, VDB Entry)
- http://www.kernel.org/pub/linux/kernel/v3.0/testing/ChangeLog-3.0-rc4(Broken Link)
- http://www.openwall.com/lists/oss-security/2011/06/24/2(Mailing List, Patch, Third Party Advisory)
- http://www.openwall.com/lists/oss-security/2011/06/24/3(Mailing List, Patch, Third Party Advisory)
- https://bugzilla.redhat.com/show_bug.cgi?id=703019(Issue Tracking, Patch, Third Party Advisory)
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
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