<s>
Resource	B-General_Concept
exhaustion	I-General_Concept
attacks	I-General_Concept
are	O
computer	O
security	O
exploits	O
that	O
crash	B-General_Concept
,	O
hang	B-General_Concept
,	O
or	O
otherwise	O
interfere	O
with	O
the	O
targeted	O
program	O
or	O
system	O
.	O
</s>
<s>
Resource	B-General_Concept
exhaustion	I-General_Concept
attacks	I-General_Concept
generally	O
exploit	O
a	O
software	O
bug	O
or	O
design	O
deficiency	O
.	O
</s>
<s>
In	O
software	O
with	O
manual	B-Application
memory	I-Application
management	I-Application
(	O
most	O
commonly	O
written	O
in	O
C	B-Language
or	O
C++	B-Language
)	O
,	O
memory	B-Error_Name
leaks	I-Error_Name
are	O
a	O
very	O
common	O
bug	O
exploited	O
for	O
resource	B-General_Concept
exhaustion	I-General_Concept
.	O
</s>
<s>
Even	O
if	O
a	O
garbage	B-General_Concept
collected	I-General_Concept
programming	O
language	O
is	O
used	O
,	O
resource	B-General_Concept
exhaustion	I-General_Concept
attacks	I-General_Concept
are	O
possible	O
if	O
the	O
program	O
uses	O
memory	O
inefficiently	O
and	O
does	O
not	O
impose	O
limits	O
on	O
the	O
amount	O
of	O
state	O
used	O
when	O
necessary	O
.	O
</s>
<s>
File	B-Application
descriptor	I-Application
leaks	O
are	O
another	O
common	O
vector	O
.	O
</s>
<s>
Most	O
general-purpose	O
programming	O
languages	O
require	O
the	O
programmer	O
to	O
explicitly	O
close	O
file	B-Application
descriptors	I-Application
,	O
so	O
even	O
particularly	O
high-level	O
languages	O
allow	O
the	O
programmer	O
to	O
make	O
such	O
mistakes	O
.	O
</s>
