Use-after-free in radare2 - CVE-2021-32495
Published: August 21, 2023
Vulnerability identifier: #VU79757
CSH Severity: High
CVSS v4: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-32495
CWE-ID: CWE-416
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a use-after-free error within the get_none_object() function in pyc parser. A remote attacker can pass specially crafted input to the application and execute arbitrary code.
Affected software
radare2
How to mitigate CVE-2021-32495
Install updates from vendor's website.
radare2 - update to 5.3.0