PT-2021-4119 · Radare2+1 · Radare2+1

Ct-Zer0 · Published 2021-05-11 · Updated 2024-06-15 · CVE-2021-32613

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions radare2 versions prior to 5.3.0

Description The issue is related to a double free vulnerability in the pyc parse via a crafted file, which can lead to a denial of service (DoS). This vulnerability can be exploited by a remote attacker, allowing them to cause a service disruption. The vulnerability is associated with the use of memory after it has been freed.

Recommendations For versions prior to 5.3.0, update to version 5.3.0 or later to resolve the issue. As a temporary workaround, consider restricting access to crafted files that could trigger the double free vulnerability in the pyc parse. Avoid using the pyc parse function with untrusted files until the issue is resolved.

Exploit

Fix

DoS

Double Free

Use After Free

Weakness Enumeration

CWE-415

CWE-416

Related Identifiers

ALT-PU-2021-2464

ALT-PU-2024-6421

ALT-PU-2024-6763

BDU:2021-04709

CVE-2021-32613

MGASA-2022-0440

OPENSUSE-SU-2024:11295-1

Affected Products

Alt Linux

Radare2

References · 31

• 🔥 https://github.com/radareorg/radare2/issues/18666 · Exploit
• 🔥 https://github.com/radareorg/radare2/issues/18679 · Exploit
• 🔥 https://github.com/radareorg/radare2/issues/18667 · Exploit
• https://github.com/radareorg/radare2/commit/a07dedb804a82bc01c07072861942dd80c6b6d62 · Patch
• https://github.com/radareorg/radare2/commit/5e16e2d1c9fe245e4c17005d779fde91ec0b9c05 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2021-32613 · Security Note
• https://osv.dev/vulnerability/MGASA-2022-0440 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/[e-mail]/thread/IQIRJ72UALGMSWH6MYPVJQQLXFGZ23RS · Vendor Advisory
• https://advisories.mageia.org/MGASA-2022-0440.html · Security Note
• https://lists.fedoraproject.org/archives/list/[e-mail]/thread/JIARALLVVY2362AYFSFULTZKIW6QO5R5 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2021-32613 · Vendor Advisory
• https://bdu.fstec.ru/vul/2021-04709 · Security Note
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/W3LPB5VGCIA7WA55FSB3YZQFUGZKWD7O · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Y3S7JB46PONPHXZHIMR2XDPLGJCN5ZIX · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2021-32613 · Vendor Advisory