SB2010090809 - Input validation error in Linux kernel
Published: September 8, 2010
Security Bulletin ID
SB2010090809
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-2010-2066)
CWE-ID: CWE-20 - Improper input validation
CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N]
The vulnerability allows a local user to manipulate data.
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.
Remediation
Install update from vendor's website.
References
- http://www.openwall.com/lists/oss-security/2010/06/07/1
- http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.35
- http://www.openwall.com/lists/oss-security/2010/06/09/1
- https://bugzilla.redhat.com/show_bug.cgi?id=601006
- http://lists.opensuse.org/opensuse-security-announce/2010-08/msg00000.html
- http://www.redhat.com/support/errata/RHSA-2010-0610.html
- http://www.ubuntu.com/usn/USN-1000-1
- http://www.vmware.com/security/advisories/VMSA-2011-0003.html
- http://secunia.com/advisories/43315
- http://www.securityfocus.com/archive/1/516397/100/0/threaded
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=1f5a81e41f8b1a782c68d3843e9ec1bfaadf7d72