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FreeBSD Security Advisory (FreeBSD-SA-09:14.devfs.asc)

Information

Severity

Severity

Critical

Family

Family

FreeBSD Local Security Checks

CVSSv2 Base

CVSSv2 Base

9.3

CVSSv2 Vector

CVSSv2 Vector

AV:N/AC:M/Au:N/C:C/I:C/A:C

Created

Created

13 years ago

Modified

Modified

6 years ago

Share

Summary

The remote host is missing an update to the system as announced in the referenced advisory FreeBSD-SA-09:14.devfs.asc

Insight

Insight

The device file system (devfs) provides access to system devices, such as storage devices and serial ports, via the file system namespace. VFS is the Virtual File System, which abstracts file system operations in the kernel from the actual underlying file system. Due to the interaction between devfs and VFS, a race condition exists where the kernel might dereference a NULL pointer.

Solution

Solution

Upgrade your system to the appropriate stable release or security branch dated after the correction date https://secure1.securityspace.com/smysecure/catid.html?in=FreeBSD-SA-09:14.devfs.asc