Information for Digital Ultrix

As well as the CERT advisory, this came in the post from DEC. DEC don't support versions of Ultrix prior to 4.3, so I guess you'll just have to move with the times and upgrade if you want to ping-proof your systems. 
Mike,
     
You presently have ULTRIX listed as a safe operating system.  Digital has 
discovered that this isn't strictly true; ULTRIX can in fact be crashed by 
a variant of the ping attack under certain circumstances.  To be safe, 
Digital has prepared patches for versions 4.3 through 4.5 of ULTRIX.  These 
can be found on atlanta.service.digital.com as follows:
     
MIPS processors (DECstations):
     
v4.3  - /pub/mandatory_upgrades/MIPS/ULTRIX/v4.3/v43_ping_fix.tar.Z
v4.3a - /pub/mandatory_upgrades/MIPS/ULTRIX/v4.3a/v43a_ping_fix.tar.Z
v4.4  - /pub/mandatory_upgrades/MIPS/ULTRIX/v4.4/v44_ping_fix.tar.Z
v4.5  - /pub/mandatory_upgrades/MIPS/ULTRIX/v4.5/v45_ping_fix.tar.Z
     
VAX processors:
     
v4.3  - /pub/mandatory_upgrades/VAX/ULTRIX/v4.3/v43_ping_fix.tar.Z
v4.4  - /pub/mandatory_upgrades/VAX/ULTRIX/v4.4/v44_ping_fix.tar.Z
v4.5  - /pub/mandatory_upgrades/VAX/ULTRIX/v4.5/v45_ping_fix.tar.Z
     
(Note: ULTRIX v4.3a is not supported on the VAX.)
     
Thanks,
Martin Moore
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