Description
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.
CVSS breakdown
CVSS 3.1
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
High
Affected products
- Canonical / Ubuntu Linux10.10 – 10.10
- Canonical / Ubuntu Linux9.10 – 9.10
- Canonical / Ubuntu Linux10.04 – 10.04
- Linux / Linux kernel2.6.35
- SUSE / linux_enterprise_high_availability_extension11 – 11
- SUSE / suse_linux_enterprise_desktop11 – 11
- SUSE / SUSE Linux Enterprise Server11 – 11
References
- VENDOR_ADVISORYhttp://www.ubuntu.com/usn/USN-1041-1
- MAILING_LISThttp://www.openwall.com/lists/oss-security/2010/07/21/10
- MAILING_LISThttp://lists.opensuse.org/opensuse-security-announce/2010-09/msg00004.html
- MISChttp://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.35
- VENDOR_ADVISORYhttp://secunia.com/advisories/42758
- MISChttps://bugzilla.redhat.com/show_bug.cgi?id=616998
- MISChttp://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=2ebc3464781ad24474abcbd2274e6254689853b5
- VENDOR_ADVISORYhttp://www.vupen.com/english/advisories/2011/0070
- MAILING_LISThttp://www.openwall.com/lists/oss-security/2010/07/21/4
- MISChttp://www.securityfocus.com/bid/41847