Multiple vulnerabilities in Radare2

Published: 2022-02-03

Risk	Medium
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2022-0173 CVE-2022-0419
CWE-ID	CWE-125 CWE-476
Exploitation vector	Network
Public exploit	N/A
Vulnerable software	radare2 Universal components / Libraries / Software for developers
Vendor	Radare

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Out-of-bounds read

EUVDB-ID: #VU60288

Risk: Low

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-0173

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition in libr/io/io_bank.c. A remote attacker can pass specially crafted data to the application, trigger an out-of-bounds read error and read contents of memory on the system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

radare2: 5.5.0 - 5.5.4

CPE2.3

External links

https://huntr.dev/bounties/727d8600-88bc-4dde-8dea-ee3d192600e5
https://github.com/radareorg/radare2/commit/37897226a1a31f982bfefdc4aeefc2e50355c73c
https://github.com/radareorg/radare2/releases/tag/5.6.0

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) NULL pointer dereference

EUVDB-ID: #VU60287

Risk: Medium

CVSSv4.0: 4.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2022-0419

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dereference error within the libr/bin/p/bin_xnu_kernelcache.c file. A remote attacker can pass specially crafted data to the application, trigger a NULL pointer dereference error and perform a denial of service (DoS) attack.