CVE-2020-27795 Information

Description

A segmentation fault was discovered in radare2 with adf command. In libr/core/cmd_anal.c when command df\ has no or wrong argument anal_fcn_data (core input + 1) –> RAnalFunction fcn = r_anal_get_fcn_in (core->anal core->offset -1); returns null pointer for fcn causing segmentation fault later in ensure_fcn_range (fcn).

Reference

https://github.com/radareorg/radare2/commit/4d3811681a80f92a53e795f6a64c4b0fc2c8dd22 https://github.com/radareorg/radare2/pull/16230 https://github.com/radareorg/radare2/issues/16215