CVE-2010-2537
Published: 30 September 2010
The btrfs_ioctl_clone function in fs/btrfs/ioctl.c in the Linux kernel before 2.6.35 allows local users to overwrite an append-only file via a (1) BTRFS_IOC_CLONE or (2) BTRFS_IOC_CLONE_RANGE ioctl call that specifies this file as a donor.
From the Ubuntu security team
Dan Rosenberg discovered that the btrfs filesystem did not correctly validate permissions when using the clone function. A local attacker could overwrite the contents of file handles that were opened for append-only, or potentially read arbitrary contents, leading to a loss of privacy.
Priority
Medium
CVSS 3 base score: 7.1
Status
| Package | Release | Status |
|---|---|---|
|
linux Launchpad, Ubuntu, Debian |
Upstream |
Released
(2.6.35~rc6)
|
|
Patches: Upstream: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=2ebc3464781ad24474abcbd2274e6254689853b5 |
||
|
linux-ec2 Launchpad, Ubuntu, Debian |
Upstream |
Released
(2.6.35~rc6)
|
|
linux-lts-backport-maverick Launchpad, Ubuntu, Debian |
Upstream |
Released
(2.6.35~rc6)
|
|
linux-source-2.6.15 Launchpad, Ubuntu, Debian |
Upstream |
Released
(2.6.35~rc6)
|