To the best of my knowledge, This bug can be fixed by upgrading Solaris patches to 108434-12 or later for Solaris 8, or 106327-19 or later for Solaris 7.
If upgrading the patch is not possible, then back out 108434-11 (Solaris 8) or 106327-18 (Solaris 7). Earlier versions of 108434 down to -06 as well as earlier versions of 106327 down to -12 are known to work.