Multiple vulnerabilities in Rizin

Published: 2022-04-05

Risk	High
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2021-43814 CVE-2021-4022
CWE-ID	CWE-787 CWE-416
Exploitation vector	Network
Public exploit	N/A
Vulnerable software Subscribe	Rizin Universal components / Libraries / Software for developers
Vendor	Rizin

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Out-of-bounds write

EUVDB-ID: #VU61877

Risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-43814

CWE-ID: CWE-787 - Out-of-bounds write

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a boundary error within the parse_die() function when reversing an AMD64 ELF binary with DWARF debug info. A remote attacker can trick the victim to open a malicious AMD64 ELF binary, trigger an out-of-bounds write and crash the affected application or execute arbitrary code on the target system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Rizin: 0.1.0 - 0.3.1

External links

http://github.com/rizinorg/rizin/issues/2083
http://github.com/rizinorg/rizin/security/advisories/GHSA-hqqp-vjcm-mw8r
http://github.com/rizinorg/rizin/commit/aa6917772d2f32e5a7daab25a46c72df0b5ea406

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Use-after-free

EUVDB-ID: #VU61878