CVE-2011-1079

Published: 25 July 2011

The bnep_sock_ioctl function in net/bluetooth/bnep/sock.c in the Linux kernel before 2.6.39 does not ensure that a certain device field ends with a '\0' character, which allows local users to obtain potentially sensitive information from kernel stack memory, or cause a denial of service (BUG and system crash), via a BNEPCONNADD command.

From the Ubuntu security team

Vasiliy Kulikov discovered that the Bluetooth stack did not correctly check that device name strings were NULL terminated. A local attacker could exploit this to crash the system, leading to a denial of service, or leak contents of kernel stack memory, leading to a loss of privacy.

Status

References

• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-1079
• https://usn.ubuntu.com/usn/usn-1187-1
• https://usn.ubuntu.com/usn/usn-1189-1
• https://usn.ubuntu.com/usn/usn-1202-1
• https://usn.ubuntu.com/usn/usn-1204-1
• https://usn.ubuntu.com/usn/usn-1167-1
• https://usn.ubuntu.com/usn/usn-1160-1
• https://usn.ubuntu.com/usn/usn-1141-1
• https://usn.ubuntu.com/usn/usn-1162-1
• https://usn.ubuntu.com/usn/usn-1159-1
• https://usn.ubuntu.com/usn/usn-1212-1
• https://usn.ubuntu.com/usn/usn-1256-1
• NVD
• Launchpad
• Debian

Bugs

• https://launchpad.net/bugs/816544