S5L8920 (Bootrom)
From The iPhone Wiki
Units with the iBoot-359.3.2 bootrom are not vulnerable to the 0x24000 Segment Overflow.
Basic Info
iBoot Version: iBoot-359.3
Units produced after 2009 week 40 have iBoot-359.3.2
Units with the iBoot-359.3.2 bootrom are not vulnerable to the 0x24000 Segment Overflow.
iBoot Version: iBoot-359.3
Units produced after 2009 week 40 have iBoot-359.3.2