SB2006052002 - Improper access control in Linux kernel
Published: May 20, 2006
Security Bulletin ID
SB2006052002
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Improper access control (CVE-ID: CVE-2006-1856)
The vulnerability allows a remote non-authenticated attacker to read and manipulate data.
Certain modifications to the Linux kernel 2.6.16 and earlier do not add the appropriate Linux Security Modules (LSM) file_permission hooks to the (1) readv and (2) writev functions, which might allow attackers to bypass intended access restrictions.
Remediation
Install update from vendor's website.
References
- http://lists.jammed.com/linux-security-module/2005/09/0019.html
- http://secunia.com/advisories/20237
- http://secunia.com/advisories/20716
- http://secunia.com/advisories/21045
- http://secunia.com/advisories/21745
- http://secunia.com/advisories/22093
- http://support.avaya.com/elmodocs2/security/ASA-2006-161.htm
- http://www.debian.org/security/2006/dsa-1184
- http://www.mandriva.com/security/advisories?name=MDKSA-2006:123
- http://www.osvdb.org/25747
- http://www.redhat.com/support/errata/RHSA-2006-0493.html
- http://www.securityfocus.com/bid/18105
- http://www.ubuntu.com/usn/usn-302-1
- http://www.ussg.iu.edu/hypermail/linux/kernel/0604.3/0777.html
- https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=191524
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9927