CVE-2011-4611

Publication date 15 December 2011

Last updated 24 July 2024

Ubuntu priority

Low

Why this priority?

Integer overflow in the perf_event_interrupt function in arch/powerpc/kernel/perf_event.c in the Linux kernel before 2.6.39 on powerpc platforms allows local users to cause a denial of service (unhandled performance monitor exception) via vectors that trigger certain outcomes of performance events.

From the Ubuntu Security Team

Maynard Johnson discovered that on POWER7, certain speculative events may raise a performance monitor exception. A local attacker could exploit this to crash the system, leading to a denial of service.

Read the notes from the security team

Status

Package Ubuntu Release Status
linux 12.10 quantal
Not affected
12.04 LTS precise
Not affected
11.10 oneiric
Not affected
11.04 natty
Not affected
10.10 maverick
Fixed 2.6.35-29.51
10.04 LTS lucid
Fixed 2.6.32-32.62
8.04 LTS hardy
Not affected
linux-armadaxp 12.10 quantal
Not affected
12.04 LTS precise
Not affected
11.10 oneiric Not in release
11.04 natty Not in release
10.04 LTS lucid Not in release
8.04 LTS hardy Not in release
linux-ec2 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 2.6.32-316.30
8.04 LTS hardy Not in release
linux-fsl-imx51 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-lts-backport-maverick 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 2.6.35-30.54~lucid1
8.04 LTS hardy Not in release
linux-lts-backport-natty 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-lts-backport-oneiric 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-mvl-dove 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 2.6.32-417.34
10.04 LTS lucid
Fixed 2.6.32-217.34
8.04 LTS hardy Not in release
linux-ti-omap4 12.10 quantal
Not affected
12.04 LTS precise
Not affected
11.10 oneiric
Not affected
11.04 natty
Not affected
10.10 maverick
Not affected
10.04 LTS lucid Not in release
8.04 LTS hardy Not in release

Notes

jdstrand

may not apply to Ubuntu. See redhat bug

apw

note this can only affect power systems, therefore none of the arm branches can express the issue and so are not-affected

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-1160-1
    • Linux kernel vulnerabilities
    • 28 June 2011
    • USN-1141-1
    • Linux kernel vulnerabilities
    • 1 June 2011
    • USN-1162-1
    • Linux kernel vulnerabilities (Marvell Dove)
    • 29 June 2011
    • USN-1187-1
    • Linux kernel (Maverick backport) vulnerabilities
    • 9 August 2011
    • USN-1159-1
    • Linux kernel vulnerabilities (Marvell Dove)
    • 13 July 2011

Other references