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CVE-2010-4158

Publication date 30 December 2010

Last updated 24 July 2024

Ubuntu priority

Low

Why this priority?

The sk_run_filter function in net/core/filter.c in the Linux kernel before 2.6.36.2 does not check whether a certain memory location has been initialized before executing a (1) BPF_S_LD_MEM or (2) BPF_S_LDX_MEM instruction, which allows local users to obtain potentially sensitive information from kernel stack memory via a crafted socket filter.

From the Ubuntu Security Team

Dan Rosenberg discovered that the socket filters did not correctly initialize structure memory. A local attacker could create malicious filters to read portions of kernel stack memory, leading to a loss of privacy.

Status

Package Ubuntu Release Status
linux 11.04 natty
Fixed 2.6.37-5.13
10.10 maverick
Fixed 2.6.35-25.43
10.04 LTS lucid
Fixed 2.6.32-30.59
9.10 karmic
Fixed 2.6.31-23.74
8.04 LTS hardy
Fixed 2.6.24-29.87
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 2.6.32-314.27
9.10 karmic
Fixed 2.6.31-308.28
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 2.6.35-25.44~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
Fixed 2.6.15-57.94
linux-ti-omap4 11.04 natty
Not affected
10.10 maverick
Fixed 2.6.35-903.22
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-1092-1
    • Linux Kernel vulnerabilities
    • 25 March 2011
    • USN-1089-1
    • Linux kernel vulnerabilities
    • 18 March 2011
    • USN-1105-1
    • Linux kernel vulnerabilities
    • 5 April 2011
    • USN-1083-1
    • Linux kernel vulnerabilities
    • 3 March 2011
    • USN-1054-1
    • Linux kernel vulnerabilities
    • 1 February 2011
    • USN-1204-1
    • Linux kernel (i.MX51) vulnerabilities
    • 13 September 2011
    • USN-1119-1
    • Linux kernel (OMAP4) vulnerabilities
    • 20 April 2011
    • USN-1086-1
    • Linux kernel (EC2) vulnerabilities
    • 8 March 2011
    • USN-1093-1
    • Linux Kernel vulnerabilities (Marvell Dove)
    • 25 March 2011

Other references