Note: This is an archival copy of Security Sun Alert 228387 as previously published on http://sunsolve.sun.com.|
Latest version of this security advisory is available from http://support.oracle.com as Sun Alert 1017334.1.
Solaris 10 Operating System
Date of Resolved Release
A local unprivileged user may be able to hang an x86 system that has loaded the kernel debugger kmdb(1). The ability to hang a system is a type of Denial of Service (DoS).
This issue can occur in the following release:
Note 1: This issue does not affect the SPARC platform.
Note 2: This issue does not affect Solaris 8 or 9.
Note 3: This issue only affects systems which have loaded the kernel debugger, kmdb(1). In order to determine if a system has loaded kmdb(1) the following command can be used:
$ modinfo | grep kmdb 178 f7d54ce8 3b8 171 1 kmdb (kmdb driver 1.3)
If the system has not loaded kmdb(1), no output will be seen.
If the described issue occurs, the system will hang and be inaccessible both locally and via the network.
There is no workaround. Please see the "Resolution" section below.
This issue is addressed in the following release:
This solution has no attachment