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CVE-2011-2484

Publication date 24 June 2011

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

The add_del_listener function in kernel/taskstats.c in the Linux kernel 2.6.39.1 and earlier does not prevent multiple registrations of exit handlers, which allows local users to cause a denial of service (memory and CPU consumption), and bypass the OOM Killer, via a crafted application.

From the Ubuntu Security Team

Vasiliy Kulikov discovered that taskstats listeners were not correctly handled. A local attacker could expoit this to exhaust memory and CPU resources, leading to a denial of service.

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 2.6.38-11.47
10.10 maverick
Fixed 2.6.35-30.57
10.04 LTS lucid
Fixed 2.6.32-34.77
8.04 LTS hardy
Fixed 2.6.24-29.92
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-1202-1
    • Linux kernel (OMAP4) vulnerabilities
    • 13 September 2011
    • USN-1186-1
    • Linux kernel vulnerabilities
    • 9 August 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
    • USN-1193-1
    • Linux kernel vulnerabilities
    • 19 August 2011

Other references