Datasheet

33
Release Notes for Catalyst 4500 Series Software Release 7.x
OL-1983-28
Open and Resolved Caveats in Software Release 7.6(3)
Resolved Caveats in Software Release 7.6(3a)
These caveats are resolved in software release 7.6(3a):
• New vulnerabilities in the OpenSSH implementation for SSH servers have been announced.
An affected network device, running an SSH server based on the OpenSSH implementation, may be
vulnerable to a Denial of Service (DoS) attack when an exploit script is repeatedly executed against
the same device. There are workarounds available to mitigate the effects of these vulnerabilities.
This advisory will be posted at
http://www.cisco.com/warp/public/707/cisco-sa-20030917-openssh.shtml.
This problem is resolved in software release 7.6(3a). (CSCec33092)
Open and Resolved Caveats in Software Release 7.6(3)
These sections describe the open and resolved caveats in supervisor engine software release 7.6(3):
• Open Caveats in Software Release 7.6(3), page 33
• Resolved Caveats in Software Release 7.6(3), page 33
Open Caveats in Software Release 7.6(3)
These caveats are open in software release 7.6(3):
• A Catalyst 4500 series switch with spanning tree disabled may forward 1Q-BPDU packets causing
a downstream port to incorrectly block its ports.
Workaround: Enable spanning tree using the set spantree enable command. (CSCeb43406)
• If a port with port security enabled receives a filtered CAM entry on a VLAN, the port may shut
down.
Workaround: There is no workaround. (CSCin51183)
Resolved Caveats in Software Release 7.6(3)
These caveats are resolved in software release 7.6(3):
• There is a memory leak in the DVLAN_RECONF process when you run a heavy CPU load. This
problem is resolved in software release 7.6(3). (CSCeb85102)
• If the switch receives packets with the system address set to the Sc0 MAC address, the port may shut
down and the Sc0 interface may become inaccessible.
Workaround: Reset the switch. (CSCeb84608)