CVE-2021-32495

Published: Jul 7, 2023Modified: Jun 17, 2026

9.1

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Exploitability: 3.9 / Impact: 5.2

Source: NVD

Description

Radare2 has a use-after-free vulnerability in pyc parser's get_none_object function. Attacker can read freed memory afterwards. This will allow attackers to cause denial of service.

Affected (1)

Products: Radare: Radare2

Radare

1 product

Radare2

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Radare Radare2	Version 5.3.0

Related CWEs

CWE-416

Use After Free

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

References (4)

https://github.com/radareorg/radare2/commit/5e16e2d1c9fe245e4c17005d779fde91ec0b9c05

Source: patrick@puiterwijk.org

PatchVendor Advisory

https://github.com/radareorg/radare2/issues/18666

Source: patrick@puiterwijk.org

Issue TrackingPatchVendor Advisory

https://github.com/radareorg/radare2/commit/5e16e2d1c9fe245e4c17005d779fde91ec0b9c05

Source: af854a3a-2127-422b-91ae-364da2661108

PatchVendor Advisory

https://github.com/radareorg/radare2/issues/18666

Source: af854a3a-2127-422b-91ae-364da2661108

Issue TrackingPatchVendor Advisory

Timeline

No history available yet.