Description
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.
CVSS breakdown
CVSS 3.1
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
None
Affected products
- Canonical / Ubuntu Linux9.10 – 9.10
- Canonical / Ubuntu Linux10.10 – 10.10
- Canonical / Ubuntu Linux10.04 – 10.04
- Canonical / Ubuntu Linux6.06 – 6.06
- Canonical / Ubuntu Linux8.04 – 8.04
- Canonical / Ubuntu Linux9.04 – 9.04
- Linux / Linux kernel2.6.35
- SUSE / linux_enterprise_high_availability_extension11 – 11
- SUSE / suse_linux_enterprise_desktop11 – 11
- SUSE / SUSE Linux Enterprise Server11 – 11
- VMware / esx4.1 – 4.1
- VMware / esx4.0 – 4.0
References
- MISChttp://www.redhat.com/support/errata/RHSA-2010-0610.html
- VENDOR_ADVISORYhttp://www.ubuntu.com/usn/USN-1000-1
- MAILING_LISThttp://lists.opensuse.org/opensuse-security-announce/2010-08/msg00000.html
- MISChttp://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.35
- MAILING_LISThttp://www.openwall.com/lists/oss-security/2010/06/07/1
- MISChttp://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=1f5a81e41f8b1a782c68d3843e9ec1bfaadf7d72
- VENDOR_ADVISORYhttp://secunia.com/advisories/43315
- MAILING_LISThttp://www.openwall.com/lists/oss-security/2010/06/09/1
- MISChttps://bugzilla.redhat.com/show_bug.cgi?id=601006
- VENDOR_ADVISORYhttp://www.vmware.com/security/advisories/VMSA-2011-0003.html
- MISChttp://www.securityfocus.com/archive/1/516397/100/0/threaded