malfunction vs glitch

malfunction and glitch both are nouns.

Word	Noun	Adjective	Verb	Adverb
malfunction	Yes	No	Yes	No
glitch	Yes	No	Yes	No

As verbs, glitch is a hyponym of malfunction; that is, glitch is a word with a more specific, narrower meaning than malfunction:

Other hyponyms of malfunction include jam, brick.

malfunction (noun)	glitch (noun)
a failure to function normally	a fault or defect in a computer program, system, or machine

malfunction (verb)	glitch (verb)
fail to function or function improperly	To suffer a minor malfunction