CVE-2010-2066
Published: 8 September 2010
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.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
linux Launchpad, Ubuntu, Debian |
dapper |
Does not exist
|
| hardy |
Not vulnerable
(no ext4)
|
|
| jaunty |
Not vulnerable
|
|
| karmic |
Released
(2.6.31-22.67)
|
|
| lucid |
Not vulnerable
|
|
| maverick |
Not vulnerable
(2.6.35)
|
|
| upstream |
Released
(2.6.35)
|
|
|
Patches: upstream: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=1f5a81e41f8b1a782c68d3843e9ec1bfaadf7d72 karmic: http://chinstrap.ubuntu.com/~bradf/CVEs/CVE-2010-2066/patches/karmic/linux/0001-ext4-Make-sure-the-MOVE_EXT-ioctl-can-t-overwrite-appe.txt |
||
|
linux-ec2 Launchpad, Ubuntu, Debian |
dapper |
Does not exist
|
| hardy |
Does not exist
|
|
| karmic |
Released
(2.6.31-307.21)
|
|
| lucid |
Released
(2.6.32-309.18)
|
|
| maverick |
Ignored
(end of life)
|
|
| upstream |
Needs triage
|
|
|
linux-fsl-imx51 Launchpad, Ubuntu, Debian |
dapper |
Does not exist
|
| hardy |
Does not exist
|
|
| karmic |
Released
(2.6.31-112.30)
|
|
| lucid |
Released
(2.6.31-608.22)
|
|
| maverick |
Does not exist
|
|
| upstream |
Needs triage
|
|
|
linux-lts-backport-maverick Launchpad, Ubuntu, Debian |
dapper |
Does not exist
|
| hardy |
Does not exist
|
|
| karmic |
Does not exist
|
|
| lucid |
Released
(2.6.35-25.44~lucid1)
|
|
| maverick |
Does not exist
|
|
| upstream |
Needs triage
|
|
|
linux-source-2.6.15 Launchpad, Ubuntu, Debian |
dapper |
Not vulnerable
(no ext4)
|
| hardy |
Does not exist
|
|
| jaunty |
Does not exist
|
|
| karmic |
Does not exist
|
|
| lucid |
Does not exist
|
|
| maverick |
Does not exist
|
|
| upstream |
Needs triage
|
|
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 5.5 |
| 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 |