Heap-double-free vulnerability in radare2

radare2 Updated 02 Oct 2025

Summary

01/07/2020

Disclosed on

HIGH

Severity

Yes i

Fix available

High

Severity

Not published

CVSS Score

OSV-2020-490: Heap-double-free in _free_resources. Affects radare2 versions >= b022c9533482a8f1c9ae825ced5c1a3e251837d9, < 149cb3587e4cd3928f8f56553ecfeaac15452585. Fixed in 149cb3587e4cd3928f8f56553ecfeaac15452585. How to fix ↓

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Background

radare2 is an open-source framework for reverse engineering and binary analysis. It provides a set of tools for analyzing and manipulating binary files. The vulnerability in radare2 is related to a heap-double-free issue, which can lead to a crash. This vulnerability was reported through the OSS-Fuzz project.

Vulnerability Detail

The vulnerability in radare2 is a heap-double-free issue. This type of vulnerability occurs when a program attempts to free the same memory address twice, leading to memory corruption and potential crashes. In this case, the crash occurs in the _free_resources function, specifically in the r_list_delete and r_list_purge functions. The vulnerability has been assigned a severity rating of HIGH. More details about the vulnerability can be found in the OSS-Fuzz report linked in the vulnerability details.

How To Fix

Minimum fixed version

149cb3587e4cd3928f8f56553ecfeaac15452585

This is the first release that contains the fix.

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Workaround

There is no specific workaround mentioned for this vulnerability. The recommended solution is to update radare2 to a fixed version.

Conclusion

The heap-double-free vulnerability in radare2 can lead to crashes and potential memory corruption. It is recommended to update radare2 to a version that includes the fix for this vulnerability. For further support on vulnerability remediation, you can reach out to DevNack.com.

See every vulnerability recorded for radare2 →