#VU60288 Out-of-bounds read in radare2 - CVE-2022-0173

Vulnerability identifier: #VU60288

Vulnerability 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

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
radare2
Universal components / Libraries / Software for developers

Vendor: Radare

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

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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

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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.