Defender Abidal, who underwent two surgeries on a liver tumour, won the last of 61 caps in February, 2012.
"He has international experience in a department where some players are injured or lack playing time," Deschamps told a news conference on Thursday, referring to Real Madrid's Raphael Varane and Paris St Germain's Mamadou Sakho.
"I'm not here to offer a gift, I just think that he is competitive again having played preparation games with Monaco."
Abidal has joined promoted Monaco from Barcelona.
Midfielder Nasri, who served a national team suspension for insulting a reporter and missed June's South America tour with a knee injury, is back having not played for Les Bleus since last year's Euro 2012 quarter-final defeat by Spain.
"Last season he was not really eligible because he was injured and did not play a lot. He has to understand that he is eligible," said Deschamps.
Goalkeepers: Mickael Landreau (Bastia), Hugo Lloris (Tottenham Hotspur), Steve Mandanda (Olympique Marseille)
Defenders: Eric Abidal (Monaco), Gael Clichy (Manchester City), Mathieu Debuchy (Newcastle United), Patrice Evra (Manchester United), Laurent Koscielny (Arsenal), Eliaquim Mangala (Porto), Adil Rami (Valencia), Bacary Sagna (Arsenal)
Midfielders: Etienne Capoue (Toulouse), Clement Grenier (Olympique Lyonnais), Josuha Guilavogui (St Etienne), Geoffrey Kondogbia (Sevilla), Rio Mavuba (Lille), Moussa Sissoko (Newcastle United)
Forwards: Karim Benzema (Real Madrid), Olivier Giroud (Arsenal), Samir Nasri (Manchester City), Dimitri Payet (Olympique Marseille), Franck Ribery (Bayern Munich), Mathieu Valbuena (Olympique Marseille)