CVE-2011-2492
The bluetooth subsystem in the Linux kernel before 3.0-rc4 does not properly initialize certain...
1.9 Low
CVE-2011-2492 is a low vulnerability (CVSS 1.9) in Linux Kernel, published July 28, 2011. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.35%, the 29th percentile. No source names a fixed version.
- Severity
- 1.9 LowCVSS 2.0, NVD
- Exploit chance
- 0.35%EPSS, 29th percentile
- Exploitation
- None knownNot on CISA’s or ENISA’s lists
- Fixed in
- No fix listedNo source names one
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.
Exploit likelihood
0.35%Down 0.9 points since Feb 4, 2022
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
linux-2.6Debian:6.0 From an advisory covering 18 CVEs | before 2.6.32-35squeeze1, plus listed versions 2.6.32-302.6.32-30+m68k.52.6.32-312.6.32-31~bpo50+12.6.32-32 Show 5 moreShow less2.6.32-332.6.32-342.6.32-34squeeze12.6.32-352.6.32-35~bpo50+1 | 2.6.32-35squeeze1 |
linux-2.6Debian:5.0 From an advisory covering 17 CVEs | before 2.6.26-26lenny4, plus listed versions 2.6.26-132.6.26-13lenny22.6.26-13lenny2~bpo40+12.6.26-142.6.26-15 Show 35 moreShow less2.6.26-15lenny12.6.26-15lenny22.6.26-15lenny32.6.26-15~bpo40+12.6.26-15~bpo40+22.6.26-162.6.26-172.6.26-17lenny12.6.26-17lenny22.6.26-17lenny2~bpo40+12.6.26-17~bpo40+12.6.26-182.6.26-192.6.26-19lenny12.6.26-19lenny22.6.26-19~bpo40+12.6.26-202.6.26-20~bpo40+12.6.26-212.6.26-21lenny12.6.26-21lenny22.6.26-21lenny32.6.26-21lenny42.6.26-21~bpo40+12.6.26-222.6.26-22lenny12.6.26-232.6.26-242.6.26-24lenny12.6.26-252.6.26-25lenny12.6.26-262.6.26-26lenny12.6.26-26lenny22.6.26-26lenny3 | 2.6.26-26lenny4 |
kernelRed Hat:enterprise_linux:5::server From an advisory covering 15 CVEs | before 0:2.6.18-238.19.1.el5 | 0:2.6.18-238.19.1.el5 |
kernel-PAERed Hat:enterprise_linux:5::server From an advisory covering 15 CVEs | before 0:2.6.18-238.19.1.el5 | 0:2.6.18-238.19.1.el5 |
kernel-PAE-debuginfoRed Hat:enterprise_linux:5::server From an advisory covering 15 CVEs | before 0:2.6.18-238.19.1.el5 | 0:2.6.18-238.19.1.el5 |
kernel-PAE-develRed Hat:enterprise_linux:5::server From an advisory covering 15 CVEs | before 0:2.6.18-238.19.1.el5 | 0:2.6.18-238.19.1.el5 |
kernel-debugRed Hat:enterprise_linux:5::server From an advisory covering 15 CVEs | before 0:2.6.18-238.19.1.el5 | 0:2.6.18-238.19.1.el5 |
kernel-debug-debuginfoRed Hat:enterprise_linux:5::server From an advisory covering 15 CVEs | before 0:2.6.18-238.19.1.el5 | 0:2.6.18-238.19.1.el5 |
kernel-debug-develRed Hat:enterprise_linux:5::server From an advisory covering 15 CVEs | before 0:2.6.18-238.19.1.el5 | 0:2.6.18-238.19.1.el5 |
kernel-debuginfoRed Hat:enterprise_linux:5::server From an advisory covering 15 CVEs | before 0:2.6.18-238.19.1.el5 | 0:2.6.18-238.19.1.el5 |
Show 43 moreShow less
| Package | Affected | Fixed |
|---|---|---|
kernel-debuginfo-commonRed Hat:enterprise_linux:5::server From an advisory covering 15 CVEs | before 0:2.6.18-238.19.1.el5 | 0:2.6.18-238.19.1.el5 |
kernel-develRed Hat:enterprise_linux:5::server From an advisory covering 15 CVEs | before 0:2.6.18-238.19.1.el5 | 0:2.6.18-238.19.1.el5 |
kernel-docRed Hat:enterprise_linux:5::server From an advisory covering 15 CVEs | before 0:2.6.18-238.19.1.el5 | 0:2.6.18-238.19.1.el5 |
kernel-kdumpRed Hat:enterprise_linux:5::server From an advisory covering 15 CVEs | before 0:2.6.18-238.19.1.el5 | 0:2.6.18-238.19.1.el5 |
kernel-kdump-debuginfoRed Hat:enterprise_linux:5::server From an advisory covering 15 CVEs | before 0:2.6.18-238.19.1.el5 | 0:2.6.18-238.19.1.el5 |
kernel-kdump-develRed Hat:enterprise_linux:5::server From an advisory covering 15 CVEs | before 0:2.6.18-238.19.1.el5 | 0:2.6.18-238.19.1.el5 |
kernel-xenRed Hat:enterprise_linux:5::server From an advisory covering 15 CVEs | before 0:2.6.18-238.19.1.el5 | 0:2.6.18-238.19.1.el5 |
kernel-xen-debuginfoRed Hat:enterprise_linux:5::server From an advisory covering 15 CVEs | before 0:2.6.18-238.19.1.el5 | 0:2.6.18-238.19.1.el5 |
kernel-xen-develRed Hat:enterprise_linux:5::server From an advisory covering 15 CVEs | before 0:2.6.18-238.19.1.el5 | 0:2.6.18-238.19.1.el5 |
kernelRed Hat:enterprise_linux:6::server From an advisory covering 14 CVEs | before 0:2.6.32-131.12.1.el6 | 0:2.6.32-131.12.1.el6 |
kernel-bootwrapperRed Hat:enterprise_linux:6::server From an advisory covering 14 CVEs | before 0:2.6.32-131.12.1.el6 | 0:2.6.32-131.12.1.el6 |
kernel-debugRed Hat:enterprise_linux:6::server From an advisory covering 14 CVEs | before 0:2.6.32-131.12.1.el6 | 0:2.6.32-131.12.1.el6 |
kernel-debug-debuginfoRed Hat:enterprise_linux:6::server From an advisory covering 14 CVEs | before 0:2.6.32-131.12.1.el6 | 0:2.6.32-131.12.1.el6 |
kernel-debug-develRed Hat:enterprise_linux:6::server From an advisory covering 14 CVEs | before 0:2.6.32-131.12.1.el6 | 0:2.6.32-131.12.1.el6 |
kernel-debuginfoRed Hat:enterprise_linux:6::server From an advisory covering 14 CVEs | before 0:2.6.32-131.12.1.el6 | 0:2.6.32-131.12.1.el6 |
kernel-debuginfo-common-i686Red Hat:enterprise_linux:6::server From an advisory covering 14 CVEs | before 0:2.6.32-131.12.1.el6 | 0:2.6.32-131.12.1.el6 |
kernel-debuginfo-common-ppc64Red Hat:enterprise_linux:6::server From an advisory covering 14 CVEs | before 0:2.6.32-131.12.1.el6 | 0:2.6.32-131.12.1.el6 |
kernel-debuginfo-common-s390xRed Hat:enterprise_linux:6::server From an advisory covering 14 CVEs | before 0:2.6.32-131.12.1.el6 | 0:2.6.32-131.12.1.el6 |
kernel-debuginfo-common-x86_64Red Hat:enterprise_linux:6::server From an advisory covering 14 CVEs | before 0:2.6.32-131.12.1.el6 | 0:2.6.32-131.12.1.el6 |
kernel-develRed Hat:enterprise_linux:6::server From an advisory covering 14 CVEs | before 0:2.6.32-131.12.1.el6 | 0:2.6.32-131.12.1.el6 |
kernel-docRed Hat:enterprise_linux:6::server From an advisory covering 14 CVEs | before 0:2.6.32-131.12.1.el6 | 0:2.6.32-131.12.1.el6 |
kernel-firmwareRed Hat:enterprise_linux:6::server From an advisory covering 14 CVEs | before 0:2.6.32-131.12.1.el6 | 0:2.6.32-131.12.1.el6 |
kernel-headersRed Hat:enterprise_linux:6::server From an advisory covering 14 CVEs | before 0:2.6.32-131.12.1.el6 | 0:2.6.32-131.12.1.el6 |
kernel-kdumpRed Hat:enterprise_linux:6::server From an advisory covering 14 CVEs | before 0:2.6.32-131.12.1.el6 | 0:2.6.32-131.12.1.el6 |
kernel-kdump-debuginfoRed Hat:enterprise_linux:6::server From an advisory covering 14 CVEs | before 0:2.6.32-131.12.1.el6 | 0:2.6.32-131.12.1.el6 |
kernel-kdump-develRed Hat:enterprise_linux:6::server From an advisory covering 14 CVEs | before 0:2.6.32-131.12.1.el6 | 0:2.6.32-131.12.1.el6 |
perfRed Hat:enterprise_linux:6::server From an advisory covering 14 CVEs | before 0:2.6.32-131.12.1.el6 | 0:2.6.32-131.12.1.el6 |
perf-debuginfoRed Hat:enterprise_linux:6::server From an advisory covering 14 CVEs | before 0:2.6.32-131.12.1.el6 | 0:2.6.32-131.12.1.el6 |
kernel-rtRed Hat:enterprise_mrg:2:server:el6 From an advisory covering 33 CVEs | before 0:2.6.33.9-rt31.75.el6rt | 0:2.6.33.9-rt31.75.el6rt |
kernel-rt-debugRed Hat:enterprise_mrg:2:server:el6 From an advisory covering 33 CVEs | before 0:2.6.33.9-rt31.75.el6rt | 0:2.6.33.9-rt31.75.el6rt |
kernel-rt-debug-debuginfoRed Hat:enterprise_mrg:2:server:el6 From an advisory covering 33 CVEs | before 0:2.6.33.9-rt31.75.el6rt | 0:2.6.33.9-rt31.75.el6rt |
kernel-rt-debug-develRed Hat:enterprise_mrg:2:server:el6 From an advisory covering 33 CVEs | before 0:2.6.33.9-rt31.75.el6rt | 0:2.6.33.9-rt31.75.el6rt |
kernel-rt-debuginfoRed Hat:enterprise_mrg:2:server:el6 From an advisory covering 33 CVEs | before 0:2.6.33.9-rt31.75.el6rt | 0:2.6.33.9-rt31.75.el6rt |
kernel-rt-debuginfo-common-x86_64Red Hat:enterprise_mrg:2:server:el6 From an advisory covering 33 CVEs | before 0:2.6.33.9-rt31.75.el6rt | 0:2.6.33.9-rt31.75.el6rt |
kernel-rt-develRed Hat:enterprise_mrg:2:server:el6 From an advisory covering 33 CVEs | before 0:2.6.33.9-rt31.75.el6rt | 0:2.6.33.9-rt31.75.el6rt |
kernel-rt-docRed Hat:enterprise_mrg:2:server:el6 From an advisory covering 33 CVEs | before 0:2.6.33.9-rt31.75.el6rt | 0:2.6.33.9-rt31.75.el6rt |
kernel-rt-firmwareRed Hat:enterprise_mrg:2:server:el6 From an advisory covering 33 CVEs | before 0:2.6.33.9-rt31.75.el6rt | 0:2.6.33.9-rt31.75.el6rt |
kernel-rt-traceRed Hat:enterprise_mrg:2:server:el6 From an advisory covering 33 CVEs | before 0:2.6.33.9-rt31.75.el6rt | 0:2.6.33.9-rt31.75.el6rt |
kernel-rt-trace-debuginfoRed Hat:enterprise_mrg:2:server:el6 From an advisory covering 33 CVEs | before 0:2.6.33.9-rt31.75.el6rt | 0:2.6.33.9-rt31.75.el6rt |
kernel-rt-trace-develRed Hat:enterprise_mrg:2:server:el6 From an advisory covering 33 CVEs | before 0:2.6.33.9-rt31.75.el6rt | 0:2.6.33.9-rt31.75.el6rt |
kernel-rt-vanillaRed Hat:enterprise_mrg:2:server:el6 From an advisory covering 33 CVEs | before 0:2.6.33.9-rt31.75.el6rt | 0:2.6.33.9-rt31.75.el6rt |
kernel-rt-vanilla-debuginfoRed Hat:enterprise_mrg:2:server:el6 From an advisory covering 33 CVEs | before 0:2.6.33.9-rt31.75.el6rt | 0:2.6.33.9-rt31.75.el6rt |
kernel-rt-vanilla-develRed Hat:enterprise_mrg:2:server:el6 From an advisory covering 33 CVEs | before 0:2.6.33.9-rt31.75.el6rt | 0:2.6.33.9-rt31.75.el6rt |
What each source reports
NVD Score used
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.
- Record
CVE-2011-2492- CVSS 2.0
- 1.9 Low
AV:L/AC:M/Au:N/C:P/I:N/A:N - Weakness
- CWE-200
- Updated
- 2026-11-02
CVE ListNo score
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.
- Record
CVE-2011-2492- Updated
- 2026-11-02
EUVDEUVD-2011-2479No score
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.
- Record
EUVD-2011-2479- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-hp8m-j8qg-prr2No score
The bluetooth subsystem in the Linux kernel before 3.0-rc4 does not properly initialize certain...
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.
- Record
GHSA-hp8m-j8qg-prr2- Weakness
- CWE-200
- Updated
- 2026-11-02
OSVUBUNTU-CVE-2011-2492No score
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.
- Record
UBUNTU-CVE-2011-2492- Updated
- 2026-11-02
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, facts | ||
| affected | ||
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
References
rhn.redhat.com/errata/RHSA-2011-0927.html
git.kernel.org?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=8d03e971cf403305217b8e62db3a2e5ad2d6263f
bugzilla.redhat.com/show_bug.cgi?id=703019
kernel.org/pub/linux/kernel/v3.0/testing/ChangeLog-3.0-rc4
openwall.com/lists/oss-security/2011/06/24/3
securitytracker.com/id?1025778
Show 194 moreShow less
permalink.gmane.org/gmane.linux.bluez.kernel/12909
marc.info?l=bugtraq&m=139447903326211&w=2
nvd.nist.gov/vuln/detail/CVE-2011-2492
github.com/advisories/GHSA-hp8m-j8qg-prr2
access.redhat.com/errata/RHSA-2011:0927
docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/5/html/5.6_Technical_Notes/kernel.html
security.access.redhat.com/data/csaf/v2/advisories/2011/rhsa-2011_0927.json
cve.org/CVERecord?id=CVE-2010-4649
ubuntu.com/security/CVE-2011-2492
This page doesn't list everything
Left out here: 6 references. The JSON record has them.