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CVE-2011-1012

Publication date 1 March 2011

Last updated 24 July 2024

Ubuntu priority

Low

Why this priority?

The ldm_parse_vmdb function in fs/partitions/ldm.c in the Linux kernel before 2.6.38-rc6-git6 does not validate the VBLK size value in the VMDB structure in an LDM partition table, which allows local users to cause a denial of service (divide-by-zero error and OOPS) via a crafted partition table.

From the Ubuntu Security Team

Timo Warns discovered that LDM partition parsing routines did not correctly calculate block counts. A local attacker with physical access could plug in a specially crafted block device to crash the system, leading to a denial of service.

Status

Package Ubuntu Release Status
linux 11.04 natty
Fixed 2.6.38-6.33
10.10 maverick
Fixed 2.6.35-29.51
10.04 LTS lucid
Fixed 2.6.32-31.60
9.10 karmic Ignored
8.04 LTS hardy
Fixed 2.6.24-29.90
6.06 LTS dapper Not in release
linux-ec2 11.04 natty Not in release
10.10 maverick Ignored end of life
10.04 LTS lucid
Fixed 2.6.32-315.28
9.10 karmic Ignored end of life
8.04 LTS hardy Not in release
6.06 LTS dapper Not in release
linux-fsl-imx51 11.04 natty Not in release
10.10 maverick Not in release
10.04 LTS lucid
Fixed 2.6.31-610.27
9.10 karmic Ignored end of life
8.04 LTS hardy Not in release
6.06 LTS dapper Not in release
linux-lts-backport-maverick 11.04 natty Not in release
10.10 maverick Not in release
10.04 LTS lucid
Fixed 2.6.35-30.54~lucid1
9.10 karmic Not in release
8.04 LTS hardy Not in release
6.06 LTS dapper Not in release
linux-lts-backport-natty 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 11.04 natty Not in release
10.10 maverick
Fixed 2.6.32-416.33
10.04 LTS lucid
Fixed 2.6.32-216.33
9.10 karmic Ignored end of life
8.04 LTS hardy Not in release
6.06 LTS dapper Not in release
linux-source-2.6.15 11.04 natty Not in release
10.10 maverick Not in release
10.04 LTS lucid Not in release
9.10 karmic Not in release
8.04 LTS hardy Not in release
6.06 LTS dapper Ignored
linux-ti-omap4 11.04 natty
Fixed 2.6.38-1204.5
10.10 maverick
Fixed 2.6.35-903.23
10.04 LTS lucid Not in release
9.10 karmic Not in release
8.04 LTS hardy Not in release
6.06 LTS dapper 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-1202-1
    • Linux kernel (OMAP4) vulnerabilities
    • 13 September 2011
    • USN-1160-1
    • Linux kernel vulnerabilities
    • 28 June 2011
    • USN-1141-1
    • Linux kernel vulnerabilities
    • 1 June 2011
    • USN-1204-1
    • Linux kernel (i.MX51) vulnerabilities
    • 13 September 2011
    • USN-1146-1
    • Linux kernel vulnerabilities
    • 9 June 2011
    • USN-1187-1
    • Linux kernel (Maverick backport) vulnerabilities
    • 9 August 2011
    • USN-1093-1
    • Linux Kernel vulnerabilities (Marvell Dove)
    • 25 March 2011

Other references