Double Free in radare2 - CVE-2021-32613

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Main Vulnerability Database Vulnerabilities #VU53328

Double Free in radare2 - CVE-2021-32613

Published: May 18, 2021 / Updated: August 21, 2023


Vulnerability identifier: #VU53328
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-32613
CWE-ID: CWE-415
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error in the pyc parse. A remote attacker can trick a victim to open a specially crafted file, trigger double free error and cause a denial of service condition on the target system.


Affected software

radare2
Arch Linux
Fedora
iaito
radare2

How to mitigate CVE-2021-32613

Install updates from vendor's website.

radare2 - update to 5.3.1
iaito - addressed in versions 5.2.2-2.fc33, 5.2.2-2.fc34, 5.2.2-3.fc33, 5.2.2-3.fc34
radare2 - addressed in versions 5.3.0-1.el7, 5.3.0-1.el8, 5.3.0-1.fc33, 5.3.0-1.fc34, 5.3.1-1.el7, 5.3.1-1.el8, 5.3.1-1.fc33, 5.3.1-1.fc34

External References

Related Security Bulletins