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Werk #0940: Fixed various core SIGSEGV when using malformed livestatus queries

ComponentCore & Setup
TitleFixed various core SIGSEGV when using malformed livestatus queries
Date2014-06-18 11:02:59
Checkmk EditionCheckmk Raw Edition (CRE)
Checkmk Version1.2.5i4
LevelProminent Change
ClassSecurity Fix
CompatibilityCompatible - no manual interaction needed

Some malformed livestatus queries could crash the monitoring core. This happened whenever the value field for certain keys was missing.

For example


lq "GET hosts\nColumnHeaders:\n"

lq "GET hosts\nAnd:\n"

lq "GET hosts\nKeepalive:\n