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.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Linux_kernel | Linux | * | 2.6.35 (excluding) |
| Red Hat Enterprise Linux 5 | RedHat | kernel-0:2.6.18-194.11.1.el5 | * |
| Linux | Ubuntu | karmic | * |
| Linux | Ubuntu | upstream | * |
| Linux-ec2 | Ubuntu | karmic | * |
| Linux-ec2 | Ubuntu | lucid | * |
| Linux-ec2 | Ubuntu | maverick | * |
| Linux-fsl-imx51 | Ubuntu | karmic | * |
| Linux-fsl-imx51 | Ubuntu | lucid | * |
| Linux-lts-backport-maverick | Ubuntu | lucid | * |
References
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=1f5a81e41f8b1a782c68d3843e9ec1bfaadf7d72
- http://lists.opensuse.org/opensuse-security-announce/2010-08/msg00000.html
- http://secunia.com/advisories/43315
- http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.35
- http://www.openwall.com/lists/oss-security/2010/06/07/1
- http://www.openwall.com/lists/oss-security/2010/06/09/1
- http://www.redhat.com/support/errata/RHSA-2010-0610.html
- http://www.securityfocus.com/archive/1/516397/100/0/threaded
- http://www.ubuntu.com/usn/USN-1000-1
- http://www.vmware.com/security/advisories/VMSA-2011-0003.html
- https://bugzilla.redhat.com/show_bug.cgi?id=601006
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=1f5a81e41f8b1a782c68d3843e9ec1bfaadf7d72
- http://lists.opensuse.org/opensuse-security-announce/2010-08/msg00000.html
- http://secunia.com/advisories/43315
- http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.35
- http://www.openwall.com/lists/oss-security/2010/06/07/1
- http://www.openwall.com/lists/oss-security/2010/06/09/1
- http://www.redhat.com/support/errata/RHSA-2010-0610.html
- http://www.securityfocus.com/archive/1/516397/100/0/threaded
- http://www.ubuntu.com/usn/USN-1000-1
- http://www.vmware.com/security/advisories/VMSA-2011-0003.html
- https://bugzilla.redhat.com/show_bug.cgi?id=601006