Wer einen Squid kleiner Version 3.0.STABLE7 hat, sollte auf die neue Version 3.0.STABLE 7 upgraden. Durch einen Fehler, welcher in einer alter Version bereits gefixt war, ist es möglich den Server neuzustarten und somit alle Verbinden zu trennen.
Problem Description:
Advisory 2004-3 was fixed in 2.5.STABLE7 and all later 2.x releases,
but was unfortunately not duplicated in the 3.x branch.
A bug exists in the ASN1 parser used in Squid's SNMP library. This
code fails to fully validate certain fields in SNMP queries. A
specially-crafted message may contain negative values, which Squid
passes to the malloc() function. This may lead to a segmentation
violation and cause Squid to restart.