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Your bugs / my problem

Your bugs / my problem

Posted Oct 29, 2008 18:57 UTC (Wed) by tialaramex (subscriber, #21167)
In reply to: Networking change causes distribution headaches by drag
Parent article: Networking change causes distribution headaches

This sort of brokenness is universal. Software has bugs. Sometimes the other guy's software has bugs, but you have to pay the price. So long as we don't have some evidence that the bugs were a result of malice, there is nothing much to do except name & shame, and then suck it up.

Prior examples include: DNS servers that silently ignore AAAA requests instead of replying that there's no matching record, causing a timeout for users who merely /enquired/ if they could use IPv6. IP "firewalls" that drop every type of ICMP packet indiscriminately by default. HTTP servers that silently accept pipelined requests, but don't pipeline the answers - so it answers all your HTTP queries, but the results are arbitrarily muddled together. Home routers that silently modify any 4 byte sequence resembling your private IP address to the 4 bytes representing the masqueraded public address? Yes, those really exist. Sometimes it seems like it'd be better to flush it away and start over - but don't make that mistake, we'd make just as many errors next time.

Although they seem to be the worst offenders, the proprietary systems aren't the only ones making these goofs. Samba's buggy attempt at early implementation of a new Windows SMB feature meant that not only could you not use the feature with Samba, but Microsoft had to disable it for Windows clients too, so everyone lost.

And let's not dwell on Debian's OpenSSL goof. To achieve a reasonable expectation of security everyone's SSL implementations should be updated to regard all the affected keys as weak, and reject them outright - but doing that means a permanent increase in the overhead of using SSL forever and for everyone in the whole world. Ouch.


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