#VU39296 Heap-based buffer overflow in radare2 - CVE-2017-6194

Vulnerability identifier: #VU39296

Vulnerability risk: Medium

CVSSv4.0: 5.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2017-6194

CWE-ID: CWE-122

Exploitation vector: Local

Exploit availability: No

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

Vendor: Radare

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error in The relocs function in libr/bin/p/bin_bflt.c in radare2 1.2.1. A remote attacker can use a crafted binary file. to trigger heap-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation
Install update from vendor's website.

Vulnerable software versions

radare2: 1.2.1

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External links
https://www.securityfocus.com/bid/97299
https://github.com/radare/radare2/commit/72794dc3523bbd5bb370de3c5857cb736c387e18
https://github.com/radare/radare2/issues/6829

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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