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Fix #4235 - oob read in aaf

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This commit is contained in:
pancake 2016-03-07 01:01:05 +01:00
parent f7e99c93e7
commit b2bb2ff78c
1 changed files with 3 additions and 1 deletions
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4
libr/core/cmd_anal.c
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@ -2163,9 +2163,11 @@ static void cmd_anal_esil(RCore *core, const char *input) {
eprintf ("Emulate basic block 0x%08" PFMT64x " - 0x%08" PFMT64x "\n", pc, end);
buf = malloc (bbs + 1);
r_io_read_at (core->io, pc, buf, bbs);
int left;
while (pc < end) {
left = R_MIN (end - pc, 32);
r_asm_set_pc (core->assembler, pc);
ret = r_anal_op (core->anal, &op, addr, buf, 32); // read overflow
ret = r_anal_op (core->anal, &op, addr, buf, left); // read overflow
if (ret) {
r_reg_setv (core->anal->reg, "PC", pc);
r_anal_esil_parse (esil, R_STRBUF_SAFEGET (&op.esil));