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CVE-2010-2066

Publication date 8 September 2010

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

5.5 · Medium

Score breakdown

The mext_check_arguments function in fs/ext4/move_extent.c in the Linux kernel before 2.6.35 allows local users to overwrite an append-only file via a MOVE_EXT ioctl call that specifies this file as a donor.

From the Ubuntu Security Team

Dan Rosenberg discovered that the MOVE_EXT ext4 ioctl did not correctly check file permissions. A local attacker could overwrite append-only files, leading to potential data loss.

Status

Package Ubuntu Release Status
linux 10.10 maverick
Not affected
10.04 LTS lucid
Not affected
9.10 karmic
Fixed 2.6.31-22.67
9.04 jaunty
Not affected
8.04 LTS hardy
Not affected
6.06 LTS dapper Not in release
linux-ec2 10.10 maverick Ignored end of life
10.04 LTS lucid
Fixed 2.6.32-309.18
9.10 karmic
Fixed 2.6.31-307.21
8.04 LTS hardy Not in release
6.06 LTS dapper Not in release
linux-fsl-imx51 10.10 maverick Not in release
10.04 LTS lucid
Fixed 2.6.31-608.22
9.10 karmic
Fixed 2.6.31-112.30
8.04 LTS hardy Not in release
6.06 LTS dapper Not in release
linux-lts-backport-maverick 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-source-2.6.15 10.10 maverick Not in release
10.04 LTS lucid Not in release
9.10 karmic Not in release
9.04 jaunty Not in release
8.04 LTS hardy Not in release
6.06 LTS dapper
Not affected

Severity score breakdown

Parameter Value
Base score 5.5 · Medium
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact High
Availability impact None
Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

References

Related Ubuntu Security Notices (USN)

    • USN-1074-1
    • Linux kernel vulnerabilities
    • 25 February 2011
    • USN-1083-1
    • Linux kernel vulnerabilities
    • 3 March 2011
    • USN-1000-1
    • Linux kernel vulnerabilities
    • 19 October 2010
    • USN-1074-2
    • Linux kernel vulnerabilities
    • 28 February 2011

Other references