SB2012062201 - Input validation error in Linux kernel
Published: June 22, 2012 Updated: June 1, 2020
Security Bulletin ID
SB2012062201
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Input validation error (CVE-ID: CVE-2011-1079)
The vulnerability allows a local user to gain access to sensitive information or perform a denial of service (DoS) attack.
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 '�' 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.
Remediation
Install update from vendor's website.
References
- https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.118
- https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.175
- https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.42
- https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.180
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.2