SB2010122904 - Information exposure in Linux kernel
Published: December 29, 2010
Security Bulletin ID
SB2010122904
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Information exposure (CVE-ID: CVE-2010-4565)
The vulnerability allows a local user to gain access to sensitive information.
The bcm_connect function in net/can/bcm.c (aka the Broadcast Manager) in the Controller Area Network (CAN) implementation in the Linux kernel 2.6.36 and earlier creates a publicly accessible file with a filename containing a kernel memory address, which allows local users to obtain potentially sensitive information about kernel memory use by listing this filename.
Remediation
Install update from vendor's website.
References
- http://openwall.com/lists/oss-security/2010/11/03/3
- http://openwall.com/lists/oss-security/2010/11/04/4
- http://openwall.com/lists/oss-security/2010/12/20/2
- http://openwall.com/lists/oss-security/2010/12/21/1
- http://www.mandriva.com/security/advisories?name=MDVSA-2011:029
- http://www.securityfocus.com/bid/44661
- http://www.spinics.net/lists/netdev/msg145791.html
- http://www.spinics.net/lists/netdev/msg145796.html
- http://www.spinics.net/lists/netdev/msg146270.html
- http://www.spinics.net/lists/netdev/msg146468.html
- https://bugzilla.redhat.com/show_bug.cgi?id=664544