SB2010093007 - Input validation error in Linux kernel
Published: September 30, 2010
Security Bulletin ID
SB2010093007
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Input validation error (CVE-ID: CVE-2010-2537)
CWE-ID: CWE-20 - Improper input validation
CVSSv4: 6.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows a local user to damange or delete data.
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.
Remediation
Install update from vendor's website.
References
- http://www.openwall.com/lists/oss-security/2010/07/21/4
- http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.35
- https://bugzilla.redhat.com/show_bug.cgi?id=616998
- http://www.securityfocus.com/bid/41847
- http://www.openwall.com/lists/oss-security/2010/07/21/10
- http://lists.opensuse.org/opensuse-security-announce/2010-09/msg00004.html
- http://www.vupen.com/english/advisories/2011/0070
- http://www.ubuntu.com/usn/USN-1041-1
- http://secunia.com/advisories/42758
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=2ebc3464781ad24474abcbd2274e6254689853b5