CVE-2011-1078: Infoleak
Description of problem: struct scoconninfo has one padding byte in the end. Local variable cinfo of type scoconninfo is copied to userspace with this uninizialized one byte, leading to old stack contents leak.
Reference: http://seclists.org/oss-sec/2011/q1/309 https://lkml.org/lkml/2011/2/14/49
Acknowledgements:
Red Hat would like to thank Vasiliy Kulikov of Openwall for reporting this issue.
Other sources
The scosockgetsockoptold function in net/bluetooth/sco.c in the Linux kernel before 2.6.39 does not initialize a certain structure, which allows local users to obtain potentially sensitive information from kernel stack memory via the SCOCONNINFO option.
— Launchpad
Affected Software
Remediation
Event History
Frequently Asked Questions
What is the severity of CVE-2011-1078?
CVE-2011-1078 is considered to be of medium severity due to the potential for a local stack contents leak.
How do I fix CVE-2011-1078?
To fix CVE-2011-1078, you should upgrade to a version of the Linux kernel that is greater than 2.6.38.8 where the issue has been addressed.
What types of systems are affected by CVE-2011-1078?
CVE-2011-1078 affects various versions of the Linux kernel, specifically those from 2.6.38 and below.
Is CVE-2011-1078 a remote or local vulnerability?
CVE-2011-1078 is a local vulnerability, which means it can only be exploited by an authenticated user on the affected system.
What implications does CVE-2011-1078 pose for security?
CVE-2011-1078 could allow an unprivileged user to gain information about the memory layout, which may lead to further exploitation.