PT-2022-11203 · Radare2+1 · Radare2+1

Octaviogallandan + 1 · Published 2022-01-02 · Updated 2024-04-19 · CVE-2021-4021

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Radare2 versions prior to 5.6.2

Description A vulnerability was found in Radare2 where mapping a huge section filled with zeros of an ELF64 binary for MIPS architecture can lead to uncontrolled resource consumption and Denial of Service (DoS).

Recommendations For versions prior to 5.6.2, update to version 5.6.2 or later to resolve the issue. At the moment, there is no information about other mitigation measures for this vulnerability.

Exploit

Fix

DoS

Resource Exhaustion

Weakness Enumeration

CWE-834

CWE-400

Related Identifiers

ALT-PU-2022-1001

ALT-PU-2024-6421

ALT-PU-2024-6763

CVE-2021-4021

MGASA-2022-0440

Affected Products

Alt Linux

Radare2

References · 17

• 🔥 https://github.com/radareorg/radare2/issues/19436 · Exploit
• https://osv.dev/vulnerability/MGASA-2022-0440 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/[e-mail]/thread/IQIRJ72UALGMSWH6MYPVJQQLXFGZ23RS · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-4021 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-4021 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-4021 · Security Note
• https://advisories.mageia.org/MGASA-2022-0440.html · Security Note
• https://security-tracker.debian.org/tracker/CVE-2021-4021 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/[e-mail]/thread/V2UL4V4XKSFJVNNUMFV443UJXGDBYGS4 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/[e-mail]/thread/JIARALLVVY2362AYFSFULTZKIW6QO5R5 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2021-4021 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/[e-mail]/thread/E6YBRQ3UCFWJVSOYIKPVUDASZ544TFND · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2021-4021 · Security Note
• https://bugs.mageia.org/show_bug.cgi?id=29163 · Note
• https://census-labs.com/news/2022/05/24/multiple-vulnerabilities-in-radare2 · Note