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CVE-2011-2492

Publication date 28 July 2011

Last updated 24 July 2024

Ubuntu priority

Low

Why this priority?

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.

From the Ubuntu Security Team

It was discovered that Bluetooth l2cap and rfcomm did not correctly initialize structures. A local attacker could exploit this to read portions of the kernel stack, leading to a loss of privacy.

Status

Package Ubuntu Release Status
linux 14.04 LTS trusty
Not affected
13.10 saucy
Not affected
12.10 quantal
Not affected
12.04 LTS precise
Not affected
11.10 oneiric
Not affected
11.04 natty
Fixed 2.6.38-11.49
10.10 maverick
Fixed 2.6.35-30.57
10.04 LTS lucid
Fixed 2.6.32-34.77
8.04 LTS hardy
Fixed 2.6.24-29.93
linux-ec2 14.04 LTS trusty Not in release
13.10 saucy Not in release
12.10 quantal Not in release
12.04 LTS precise Not in release
11.10 oneiric Not in release
11.04 natty Not in release
10.10 maverick Ignored end of life
10.04 LTS lucid
Fixed 2.6.32-318.38
8.04 LTS hardy Not in release
linux-flo 14.04 LTS trusty Not in release
13.10 saucy Not in release
12.10 quantal Not in release
12.04 LTS precise Not in release
10.04 LTS lucid Not in release
linux-fsl-imx51 14.04 LTS trusty Not in release
13.10 saucy Not in release
12.10 quantal Not in release
12.04 LTS precise Not in release
11.10 oneiric Not in release
11.04 natty Not in release
10.10 maverick Not in release
10.04 LTS lucid
Fixed 2.6.31-610.27
8.04 LTS hardy Not in release
linux-goldfish 14.04 LTS trusty Not in release
13.10 saucy Ignored
12.10 quantal Not in release
12.04 LTS precise Not in release
10.04 LTS lucid Not in release
linux-grouper 14.04 LTS trusty Not in release
13.10 saucy Ignored
12.10 quantal Not in release
12.04 LTS precise Not in release
10.04 LTS lucid Not in release
linux-lts-backport-maverick 14.04 LTS trusty Not in release
13.10 saucy Not in release
12.10 quantal Not in release
12.04 LTS precise Not in release
11.10 oneiric Not in release
11.04 natty Not in release
10.10 maverick Not in release
10.04 LTS lucid
Fixed 2.6.35-30.57~lucid1
8.04 LTS hardy Not in release
linux-lts-backport-natty 14.04 LTS trusty Not in release
13.10 saucy Not in release
12.10 quantal Not in release
12.04 LTS precise Not in release
11.10 oneiric Not in release
11.04 natty Not in release
10.10 maverick Not in release
10.04 LTS lucid
Fixed 2.6.38-11.49~lucid1
8.04 LTS hardy Not in release
linux-lts-backport-oneiric 14.04 LTS trusty Not in release
13.10 saucy Not in release
12.10 quantal Not in release
12.04 LTS precise Not in release
11.10 oneiric Not in release
11.04 natty Not in release
10.10 maverick Not in release
10.04 LTS lucid
Not affected
8.04 LTS hardy Not in release
linux-maguro 14.04 LTS trusty Not in release
13.10 saucy Ignored
12.10 quantal Not in release
12.04 LTS precise Not in release
10.04 LTS lucid Not in release
linux-mako 14.04 LTS trusty Not in release
13.10 saucy Ignored
12.10 quantal Not in release
12.04 LTS precise Not in release
10.04 LTS lucid Not in release
linux-manta 14.04 LTS trusty Not in release
13.10 saucy Ignored
12.10 quantal Not in release
12.04 LTS precise Not in release
10.04 LTS lucid Not in release
linux-mvl-dove 14.04 LTS trusty Not in release
13.10 saucy Not in release
12.10 quantal Not in release
12.04 LTS precise Not in release
11.10 oneiric Not in release
11.04 natty Not in release
10.10 maverick
Fixed 2.6.32-418.35
10.04 LTS lucid
Fixed 2.6.32-218.35
8.04 LTS hardy Not in release
linux-ti-omap4 14.04 LTS trusty Not in release
13.10 saucy
Not affected
12.10 quantal
Not affected
12.04 LTS precise
Not affected
11.10 oneiric
Not affected
11.04 natty
Fixed 2.6.38-1209.15
10.10 maverick
Fixed 2.6.35-903.23
10.04 LTS lucid Not in release
8.04 LTS hardy Not in release

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
linux

References

Related Ubuntu Security Notices (USN)

    • USN-1208-1
    • Linux kernel (Marvel DOVE) vulnerabilities
    • 14 September 2011
    • USN-1205-1
    • Linux kernel (Maverick backport) vulnerabilities
    • 13 September 2011
    • USN-1189-1
    • Linux kernel vulnerabilities
    • 19 August 2011
    • USN-1211-1
    • Linux kernel vulnerabilities
    • 21 September 2011
    • USN-1202-1
    • Linux kernel (OMAP4) vulnerabilities
    • 13 September 2011
    • USN-1203-1
    • Linux kernel (Marvel DOVE) vulnerabilities
    • 13 September 2011
    • USN-1218-1
    • Linux kernel vulnerabilities
    • 29 September 2011
    • USN-1204-1
    • Linux kernel (i.MX51) vulnerabilities
    • 13 September 2011
    • USN-1256-1
    • Linux kernel (Natty backport) vulnerabilities
    • 9 November 2011
    • USN-1201-1
    • Linux kernel vulnerabilities
    • 13 September 2011
    • USN-1212-1
    • Linux kernel (OMAP4) vulnerabilities
    • 21 September 2011
    • USN-1216-1
    • Linux kernel (EC2) vulnerabilities
    • 26 September 2011

Other references