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.

References

• https://nvd.nist.gov/vuln/detail/CVE-2010-4565
• https://bugzilla.redhat.com/show_bug.cgi?id=664544
• 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